KR20130111159A

KR20130111159A - Two step compressor unit and compressor system having the said

Info

Publication number: KR20130111159A
Application number: KR1020120099849A
Authority: KR
Inventors: 김우균
Original assignee: 김우균
Priority date: 2012-03-30
Filing date: 2012-09-07
Publication date: 2013-10-10

Abstract

The present invention relates to a two-stage compressor unit having a triple trocoidal rotor and a compressor system having the same. More particularly, the compressor system includes a first rotor, a second rotor, a third rotor, a casing and a second compressor. A compressor unit having a suction port and a first suction port, and a triple troidal rotor including a second discharge port and a first discharge port; The first, second, and third rotors are rotated to allow the external working fluid to be sucked into the suction port, and the discharge port is configured to drive the discharged working fluid sucked into the suction port in a compressed state.
According to the present invention, the compressor unit is composed of a triple trocoidal rotor, so that the two-stage compression of the working fluid is possible, so that the working fluid can be sent at high pressure, and the suction amount and the discharge amount of the working fluid are increased, so that the high pressure and high pressure are compressed. This has the effect of providing performance.

Description

Two step compressor unit and compressor system having the said

According to the present invention, since the compressor unit is configured as a triple trocoidal rotor, two-stage compression of the working fluid is possible, and the working fluid can be discharged at high pressure, and the suction amount and the discharge amount of the working fluid are increased to provide high-speed high-pressure compression performance. And a compressor system having the same.

Generally, a compressor unit having a trochoidal rotor includes two gear rotors which rotate in an assembled state and pass the working fluid therebetween to compress the working fluid, and a casing for accommodating the gear rotor. It is configured to include. The trocoidal rotor is a rotor in which a trocoidal gear is formed on the inner and outer circumferential surfaces thereof.

The conventional compressor unit includes a first rotor having a trocoidal tooth formed on an outer circumferential surface thereof, and receiving the first rotor at a position eccentric with respect to a center of rotation thereof, wherein the first rotor is disposed on an inner circumferential surface thereof. And a second rotor having a geared rotor of one rotor and a trocoidal gear tooth which is in linear contact with the first rotor, and a casing for hermetically housing the first and second rotors.

The conventional compressor unit configured as described above has a basic mechanism for changing the volume between the first rotor and the second rotor and thus sucking and compressing and discharging the fluid. It has been used as a fluid pump for decades because of its relatively simple structure and compact size.

However, since the conventional compressor unit uses only two rotors, the compression ratio is limited. That is, even if the rotational torque of the first rotor is increased as much as possible, the working fluid is discharged every time the first rotor rotates once, so that the pressure of the working fluid discharged is not higher than any other. Therefore, it is limited in the use of the place where high lift is required any more, and the discharge rate is also limited, which does not provide the performance of the high-speed pumping.

Therefore, a compressor unit having a triple trocoidal rotor capable of two-stage compression of the working fluid to deliver the working fluid at a high pressure, providing a high-speed high-pressure compression performance by increasing the suction and discharge of the working fluid, and There is an urgent need for the development of a compressor system.

Accordingly, the present invention has been conceived to solve the above-mentioned problems, and by configuring the compressor unit as a triple trocoidal rotor, it is possible to compress the working fluid in two stages so that it can deliver the working fluid at high pressure. It is an object of the present invention to provide a compressor unit having a coiled rotor and a compressor system having the same.

It is also an object of the present invention to provide a compressor system having a two-stage compressor unit and a compressor system having the same high speed and high pressure compression performance by increasing the suction amount and discharge amount of the working fluid by configuring the compressor unit with a triple trocoidal rotor. have.

Two-stage compressor unit according to a preferred embodiment of the present invention for achieving the above object is a first rotor is formed with a plurality of trocodal gear of the outer peripheral surface and the fixed shaft is fixed to the center of rotation; The first rotor is eccentrically accommodated therein, and an inner circumferential surface thereof is provided with a trocoidal gear that is engaged with the gears of the first rotor and is in line contact with the first rotor, wherein the trocoidal gear is one more than the number of teeth of the first rotor. A second rotor having more gear teeth, and on the outer circumferential surface the same number of trocoidal gear teeth as the inner circumferential surface; The second rotor is eccentrically accommodated therein, and an inner circumferential surface thereof is provided with a trocoidal gear which is engaged with the gears of the second rotor outer circumferential surface and is in linear contact, wherein the trocoidal gear is one more than the number of second rotor gear teeth. A third rotor having many gears; A casing for tightly accommodating the first, second, and third rotors to support rotation in a state in which the fixed shaft of the first rotor and the drive shaft of the third rotor are connected and extended to the outside; A second suction port provided at a side of the drive shaft to connect the inside and the outside of the casing to be positioned at a position where the gear of the first rotor and the inner gear of the second rotor are opened as much as possible when the first, second and third rotors rotate; A first suction port positioned at a position where the outer gear of the second rotor and the gear of the third rotor are maximally opened; When the first, second and third rotors rotate, the second discharge port provided at the portion where the gears of the first rotor and the inner gear of the second rotor are narrowed and the gears of the outer gear and the third rotor of the second rotor are narrowed. And a first discharge port positioned at the site.

In addition, the compressor system for achieving the above object comprises a first rotor having a plurality of trocoidal gears are formed on the outer circumferential surface and the fixed shaft is fixed to the rotation center; The first rotor is accommodated eccentrically therein and the inner circumferential surface is meshed with the first rotor gear and linearly contacted to form a trocoid gear, wherein the trocoidal gear has one more gear than the number of gear teeth of the first rotor. A second rotor having a number of trocoidal gear teeth formed on the outer circumferential surface and the same number as the inner circumferential surface; The second rotor is eccentrically accommodated therein, and an inner circumferential surface thereof is provided with a trocoidal gear meshing with the gears of the second rotor outer circumferential surface and making linear contact with each other, wherein the trocoidal gear is one more than the number of the second rotor gear teeth. A third rotor having more gear teeth; A casing for rotatably supporting the first, second and third rotors to rotatably support the fixed shaft of the first rotor and the drive shaft of the third rotor to protrude outwardly; A second suction port provided at a side of the drive shaft to connect the inside and the outside of the casing to be positioned at a position where the gear of the first rotor and the inner gear of the second rotor are opened as much as possible when the first, second and third rotors rotate; A first suction port positioned at a position where the outer gear of the second rotor and the gear of the third rotor are maximally opened; When the first, second and third rotors rotate, the second discharge port provided at the portion where the gears of the first rotor and the inner gear of the second rotor are narrowed and the gears of the outer gear and the third rotor of the second rotor are narrowed. A compressor unit having a triple troidal rotor comprising a first discharge port positioned at the site; Connected to the drive shaft and applying a rotary torque to the drive shaft to rotate the first, second, third rotor to suck the external working fluid to the suction port and to compress the working fluid sucked into the suction port A drive unit for discharging in a closed state; .

In the present invention, the first fluid is sucked into the first suction port and first compressed between the second rotor and the third rotor, and then discharged the working fluid discharged through the first discharge port to the second suction port. The first discharge port and the second suction port are connected by a connecting pipe so as to be secondly compressed between the second rotors, and the first discharged fluid is cooled into the second suction port and sucked into the second suction port, thereby being discharged to the second discharge port. It is characterized in that the temperature of the fluid can be lowered.

In the present invention, when the first, second, second rotor is rotated, the suction of the compressor cover is fixed to the outer cover the center rotation axis of the first rotor to the outer cover and the first and second suction port hole in the inner suction to form a groove Air resistant grooves; Compressed residual air resistance preventing grooves extending in the first and second discharge port holes to form grooves; A compression ratio adjusting groove formed extending in the first and second discharge port holes; Further comprising:

In the present invention, the compressor having a triple trocoidal rotor can be applied to a two-stage expansion turbine, two-stage fluid pump, vacuum pump compensator (compressor and expander) expander pump (outside expander inner pump) in addition to the industrial compressor. It is characterized by including the.

The two stage compressor unit having a triple trocoidal rotor and the compressor system having the same according to the present invention have the following effects.

First, in the present invention, the compressor unit is composed of a triple trocoidal rotor, so that the two-stage compression of the working fluid is possible, so that the working fluid can be sent at a high pressure.

Second, the present invention is configured by the compressor unit of the triple trocoidal rotor, the suction amount and the discharge amount of the working fluid can be increased to provide a high-speed high-pressure compression performance.

1 is a view illustrating a two stage compressor unit having a triple trocoidal rotor according to an embodiment of the present invention.
2 is a view showing the configuration of the front cover of the compressor unit shown in FIG.
3 is a view showing the configuration of a rotor of the compressor unit shown in FIG.
4 is a side view of the compressor unit shown in FIG. 1;
5 is a view showing the configuration of a two-stage compressor system having a triple trocoidal rotor according to an embodiment of the present invention.
6 is a view for explaining the compression mechanism of the compressor system shown in FIG.
FIG. 7 is a view illustrating a compression mechanism according to another embodiment of the compressor system shown in FIG.
8 is a view illustrating an oil supply path of the third rotor illustrated in FIG. 1;
9 is a view illustrating an oil supply path of the second rotor illustrated in FIG. 1;
10 is a view showing an oil supply path of the first rotor shown in FIG.

Looking at the preferred embodiment of the present invention together with the accompanying drawings as follows, when it is determined that the detailed description of the known art or configuration related to the present invention may unnecessarily obscure the subject matter of the present invention The description will be omitted, and the following terms are defined in consideration of functions in the present invention, which may vary according to the intention or custom of the user or operator, and the definition thereof is a compressor having a triple trocoidal rotor of the present invention. It should be made based on the content throughout this specification to describe a unit and a compressor system having the same.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing a compressor unit having a triple trocoidal rotor according to an embodiment of the present invention, Figure 2 is a view showing the configuration of the front cover of the compressor unit shown in FIG. 3 is a view showing the configuration of the rotor of the compressor unit shown in Figure 1, Figure 4 is a view showing the side of the compressor unit shown in Figure 1, Figure 5 is a view according to an embodiment of the present invention It is a figure which shows the structure of the compressor system which has a middle trocoidal rotor.

In FIG. 2, reference numeral 11 denotes an oil injection port through which gears are supplied to the side, reference numeral 24-1 denotes an oil injection port supplied to the oil chamber side inside the compressor cover, and reference numeral 25 denotes an oil chamber. It is an oil supply chamber for supplying oil to the 2, 3 rotor and the fixed shaft center bearing. Reference numeral 26 denotes a third rotor oil supply passage for supplying oil to the third rotor side.

In FIG. 4, reference numeral 34 denotes a bearing, reference numeral 35 denotes an oil passage formed inside the drive shaft 20, and reference numeral 36 denotes an oil passage formed on the bearing 34 side inside the drive shaft 20, respectively. Indicates.

1 to 5, the compressor unit 12 according to an embodiment of the present invention includes a trocoidal rotor assembly in which three trocoidal rotors 14, 13, and 15 are engaged with each other. 18) and a casing 17 for hermetically housing the assembly 18 therein. The casing 17 is manufactured in a cylindrical shape having a predetermined diameter.

The trocoidal rotor assembly 18 includes a first rotor 15, a second rotor 14 for receiving the first rotor 15 in an eccentric position thereof, and the second rotor 14. It consists of a third rotor (13) for receiving in its inner eccentric position.

In addition, as in the conventional trocoidal gear pump, the first rotor 15 and the second rotor 14 mesh with each other and are in line contact with each other, and the third rotor 13 with respect to the second rotor 14. ) Is in line contact with each other. The fixed shaft is fixed to the outer cover 19 by the shaft center 16 on the rotation center axis of the first rotor 15.

In addition, the drive shaft 20 extends in the longitudinal direction with the third rotor 13 and the drive shaft 20 coupled to each other, and as shown in FIG. 5, the drive shaft 20 penetrates the casing 17. It protrudes to a predetermined length outside. The drive shaft 20 receives the rotation torque from the external drive unit 21 to rotate the shaft. Since the drive shaft 20 rotates as described above, the first, second, and third rotors 15, 14, and 13 are driven, and accordingly, referring to FIG. 5, the drive shaft 20 of the compressor unit 12 is described. It can be seen that is connected to the driving unit 21. The drive unit 21 is a motor or an engine capable of providing torque.

In addition, the first and second suction ports 1 and 3 are all open, and the second discharge port 8 is connected to the oil tank 22 for the oil separator, and the first, second, third rotors 15, 14 and 13 The fluid discharged during the rotation of the oil is increased in the oil tank 22 for the oil separator through the second discharge port (8) so that the lubricant inside the third and second rotors (13) through the oil injection port (11) (14). The pressure of the oil separator combined oil tank 22 is connected to the compressed air storage tank 23. The compressed air storage tank 23 serves to temporarily store the compressed gas discharged from the compressor unit 12, and may not be installed according to the embodiment.

When the compressed air storage tank 23 is not installed, the oil separator 22 combined with the oil separator 22 is directly connected to the required place by the air discharge connection pipe. When the high pressure air is not required, the second suction port 3 is disconnected from the first discharge port 5, and the first suction port 1 and the second suction port 3 are connected to each other. 2 The discharge port 8 and the first discharge port 5 are connected to each other to use low pressure compressed air with one stage compression.

In addition, as described above, since the first and second suction ports 3 and 1 are connected to each other, the amount of the suction air is large enough to discharge a large amount of low pressure compressed air at one time. The compressor configured in this way is suitable for a place where a large amount of high pressure and low pressure compressed air is required for a limited time. In addition, as described above, by connecting the first and second suction ports 3 and 1 and the first and second discharge ports 5 and 8, high pressure and low pressure air can be easily produced. The detailed driving mechanism of the first, second and third rotors will be described later with reference to FIG. 6.

Referring to FIG. 5, it can be seen that the first discharge port 5 is connected to the second suction port 3 through the connection pipe 24. In addition, the second discharge port 8 is connected to the oil tank combined with the oil separator 22, and is connected to the compressed air storage tank 23 through a connecting pipe.

In the case configured as described above, when the driving shaft 20 is axially rotated through the driving unit 21, external air is sucked into the first suction port 1. As shown in FIGS. 2 to 4, the air sucked into the first suction port 1 is formed along the first suction port groove 2 formed in the front cover 19 of the compressor. Intake air is supplied as much as possible without resistance between the second rotor and the second rotor (14). The first suction port groove (2) formed in the front cover (19) of the compressor is used for the purpose of preventing the resistance of the sucked air, casing between the second rotor 14 and the third rotor (13). It is first compressed while turning (17) and then discharged through the first discharge port (5). At this time, before the compressed gas reaches the first discharge port 5, the compressed gas reaches the compression ratio adjusting groove 6. The purpose of the compression ratio adjusting groove 6 is to adjust the compression ratio of the compressed air, the amount of the primary discharge air and the amount of the secondary suction air, and the length of the compression ratio adjusting groove 6 varies depending on the amount of the compressed air. . In order to prevent residual air compression after the compressed air is discharged through the first discharge port 5, a compressed air resistance preventing groove 7 formed in the front cover 19 of the compressor is formed as shown in FIG. . The purpose of the resistance preventing groove 7 is to smoothly discharge the lubricant supplied while being resisted by the rotation of the rotor by the compression of the compressed air in which the compressed air is not discharged entirely from the first discharge port 5.

Compressed air discharged to the first discharge port (5) is moved to the second suction port (3) through a connecting pipe 24, the compressed air as shown in Figure 2 and 4, the front of the compressor A suction is performed between the second rotor 14 and the first rotor 15 along the second suction port groove 4 inside the cover 19 without resistance of suction, and the purpose of the second suction port groove 4 is maintained. Is to prevent the suction resistance of the compressed air to be sucked, is compressed once again between the first rotor 15 and the second rotor 14 , and reaches the compression ratio adjusting groove (9). The purpose of the compression ratio adjusting groove 9 is to adjust the compression ratio.

The compressed ratio adjusting groove 9 is discharged to the second discharge port 8, and the remaining air and oil which are not discharged are discharged through the second discharge port compressed air resistance preventing groove (10 of FIG. 2). The purpose of the second discharge port resistance preventing groove 10 is to remove the rotational resistance of the rotor by the compression of the compressed residual air and oil for smooth rotation. When the oil is discharged to the outside of the casing 17 through the second discharge port 8 and supplied to the oil tank 22 for the oil separator, the oil pressure port 11 of the compressor front cover 19 is increased by the internal pressure. Lubricant is supplied between the third rotor 13 and the second rotor 14 through the groove. At this time, since the third rotor 13 and the second rotor 14 are first opened, the inside thereof becomes a vacuum, and the lubricating oil is smoothly supplied by the internal pressure of the oil tank 22 for oil separator.

Compressed air collected in the oil separator combined oil tank 22 as described above is moved to the compressed air storage tank 23 through a connecting pipe and temporarily stored, and when the compressed air does not need to be stored, the compressed air storage tank ( Of course, there is no need to install it.

FIG. 6 is a view illustrating the compression mechanism of the compressor system shown in FIG.

The operation mechanism of the compressor shown in FIG. 5 is to simultaneously suck the working fluid into two suction ports and simultaneously discharge the fluid to two discharge ports.

As shown in FIG. 6, when the drive shaft 20 rotates, the trocoidal rotor assembly 18 rotates as a whole, and the first rotor 15 in which the first and second suction ports 1 and 3 are located. ) And the space between the second rotor 14 and the second rotor 14 and the third rotor (13). Therefore, the pressure between the first, second, and third rotors 15, 14, 13 is lowered, and as shown in FIG. It flows into the casing 17.

As when in the state continues to rotate the drive shaft 20 as a working fluid is shown in Fig. 6 (b), is rotated in a state trapped between the first, second and third rotor (15,14,13) and compressed Approaching the first and second discharge ports 5 and 8.

As shown in (c) of FIG. 6, the working fluid moving in the state trapped between the first, second and third rotors 15, 14 and 13 finally reaches the first and second discharge ports 5 and 8. Upon reaching, the working fluid is simultaneously discharged through the first and second discharge ports 5 and 8 and supplied to the demand or temporarily stored in the compressed air storage tank 23.

FIG. 7 is a view illustrating a compression mechanism according to another embodiment of the compressor system shown in FIG.

Basically, the operation mechanism of the compressor unit shown in FIG. 5 first sucks the working fluid into the first suction port 1 and compresses the first, and then passes through the first discharge port 5 and the second suction port 3. Second compression in the casing 17 and finally discharged to the second discharge port (8)

As shown in Figure 7 (a), when rotating the drive unit drive shaft 20 via a (21 in Fig. 5) moves into the casing 17 of the external working fluid through the first suction port (1) do. The working fluid moved into the casing 17 through the first suction port 1 moves to the first discharge port 5 in a state of being trapped between the second rotor 14 and the third rotor 13. Compressed (see FIGS. 7B and 7C ).

As shown in (c) of Figure 7, the first discharge port 5, the working fluid is the running through to the outside of the casing 17 through the first discharge port 5 is connected to the pipe (Fig. 5 24 reaches the ) Moves to the second suction port (3).

As shown in the second intake port (3) a working fluid (d) of Figure 7 moving in as described above, is sucked between the first rotor 15 and second rotor 14. Then in Fig. 7 (e) go to a state of a first rotor 15 and the second discharge port 8 in a compressed state once again between the second rotor 14 illustrated in and is discharged to the outside (Fig. 7 ( f) ).

Meanwhile, FIG. 8 is a view showing an oil supply path of the third rotor shown in FIG. 1, FIG. 9 is a view showing an oil supply path of the second rotor shown in FIG. 1 is a view illustrating an oil supply path of the first rotor illustrated in FIG. 1.

A lubrication system in a compressor unit according to an embodiment of the present invention will be described with reference to the drawings.

Oil is supplied from the oil tank combined with the external oil separator (22 in FIG. 5) to the oil inlet port (11 in FIG. 2) and the oil supply inlet (24 in FIG. 2) located in the outer cover (19 in FIG. 4) in front of the compressor. The oil introduced into the oil supply inlet (24 of FIG. 2) is filled with oil in the oil chamber (25 of FIG. 2) and the oil supply passage (26 of FIG. 2) located inside the front cover. Oil is supplied to the oil supply passage 27 formed in a circular shape to the three rotors 13 to lubricate between the third rotor 13 and the front outer cover 19.

In addition, referring to FIG. 10 illustrating the oil supply path of the second rotor 14, the second rotor is provided through the oil chamber 25 (FIG. 2) and the oil supply path 26 (FIG. 2) located inside the front cover. The oil is supplied to the 14 and the first rotor 15 and the fixed shaft bearing, and the oil is lubricated by supplying oil to the portion of the gear through the oil passage (30 in FIG. 10) of the second rotor 14. Oil is supplied to the second rotor 14 in contact with the drive shaft opposite to the gear through the hole in 28 of FIG. 10 to lubricate the oil.

In Fig. 10, reference numeral 29 denotes a lubrication passage of the portion of the rotor gear in the second rotor 14.

In addition, referring to FIG. 11 illustrating the oil supply path of the first rotor 15, the gear side is supplied by supplying oil to the oil supply passage 33 through an oil chamber 25 (in FIG. 2) located inside the front cover. Lubricate and lubricate between the front cover and the gear by supplying oil to this part. At this time, oil is supplied to the oil passage 31, the lubrication passage 32, and the oil supply passage 33 positioned at the portion in contact with the opposite drive shaft and the gear side through the hole of the oil passage 31, thereby contacting the drive shaft and the gear. Lubricate.

In FIG. 11, reference numeral 32 denotes a lubrication passage of a tooth part of the first rotor 15.

On the other hand, the oil discharged from the oil tank combined with the oil separator 22 is the bearing 34 installed on the shaft through the oil passage 35 of FIG. Oil is supplied and oil is finally supplied to the fixed shaft bearing 34 installed in the outer outer cover 19 through the center of the first rotor 15 of the rotor assembly 18 .

As described above, the two-stage compressor unit according to the present embodiment may realize a high pressure compressive force by increasing the discharge speed of the working fluid or making the compression into two stages.

As described above, the two-stage compressor unit having a triple trocoidal rotor and the compressor system having the same are an industrial compressor, a two-stage expansion turbine, a two-stage fluid pump, a vacuum pump. Inflator) Applicable to inflator pump (outer inflator, inner pump).

Best Mode for Carrying Out the Invention In the drawings and specification, there have been disclosed preferred embodiments and the terminology used herein is for the purpose of describing the present invention only and not for limiting the scope of the present invention. Therefore, those skilled in the art will appreciate that various modifications and equivalent embodiments may be possible without departing from the scope of the invention.

1: first suction port 2: first suction port groove
3: second suction port 4: second suction port groove
5: 1st discharge port 6: 1st discharge port compression ratio adjustment groove
7: First discharge port resistance preventing groove 8: Second discharge port
9: 2nd discharge port compression ratio adjustment groove 10: 2nd discharge port resistance prevention groove
11: oil injection port 12: compressor unit
13: 3rd rotor 14: 2nd rotor
15: first rotor 16: shaft
17 casing 18 trocoidal rotor assembly
19: compressor front cover 20: drive shaft
21: drive unit 22: oil tank for oil separator
23: compressed air storage tank 24: connection piping
24-1 : Oil Filling Port
25: oil chamber 26: oil supply path of the third rotor
27: oil supply passage of the third rotor 28: oil supply port
29: lubrication passage 30: oil passage
31: Oil passage 32: Lubrication passage
33: oil supply passage 34: bearing
35: oil passage 36: oil passage

Claims

In the compressor unit,
A first rotor having a plurality of trocoidal gears formed on an outer circumferential surface thereof and having a fixed shaft fixed thereto at a center of rotation thereof;
The first rotor is eccentrically accommodated therein, and an inner circumferential surface thereof is provided with a trocoidal gear that is engaged with the gears of the first rotor and is in line contact with the first rotor, wherein the trocoidal gear is one more than the number of teeth of the first rotor. A second rotor having more gear teeth, and on the outer circumferential surface the same number of trocoidal gear teeth as the inner circumferential surface;
The second rotor is eccentrically accommodated therein, and an inner circumferential surface thereof is provided with a trocoidal gear which is engaged with the gears of the second rotor outer circumferential surface and is in linear contact, wherein the trocoidal gear is one more than the number of second rotor gear teeth. A third rotor having many gears;
A casing for tightly accommodating the first, second, and third rotors to support rotation in a state in which the fixed shaft of the first rotor and the drive shaft of the third rotor are connected and extended to the outside;
A second suction port provided at a side of the drive shaft to connect the inside and the outside of the casing to be positioned at a position where the gear of the first rotor and the inner gear of the second rotor are opened as much as possible when the first, second and third rotors rotate; A first suction port positioned at a position where the outer gear of the second rotor and the gear of the third rotor are maximally opened;
When the first, second and third rotors rotate, the second discharge port and the outer gears of the second rotor and the gears of the third rotor, which are provided at the portion where the gears of the first rotor and the inner gear of the second rotor become narrow, become narrow. a two-stage compressor unit, characterized in that it comprises a first discharge port positioned in the region.

The method of claim 1,
A compressor cover for fixing the center rotation shaft of the first rotor to the outer cover when the first, second and third rotors rotate, and a suction resistance preventing groove extending from the first and second suction port holes in the inner side of the compressor cover; Compressed residual gas rotational resistance preventing grooves extending in the first and second discharge port holes to form grooves; A compression ratio adjustment groove formed extending in the first and second discharge port holes; Two-stage compressor unit further comprises.

In the compressor system,
A first rotor having a plurality of trocoidal gears formed on an outer circumferential surface thereof and having a fixed shaft fixed thereto at a center of rotation thereof;
The first rotor is accommodated eccentrically therein and the inner circumferential surface is meshed with the first rotor gear and linearly contacted to form a trocoid gear, wherein the trocoidal gear has one more gear than the number of gear teeth of the first rotor. A second rotor having a same number of trocoidal gears as the inner circumferential surface and an outer circumferential surface thereof;
The second rotor is eccentrically accommodated therein, and an inner circumferential surface thereof is provided with a trocoidal gear meshing with the gears of the second rotor outer circumferential surface and making linear contact with each other, wherein the trocoidal gear is one more than the number of the second rotor gear teeth. A third rotor having more gear teeth;
A casing for rotatably supporting the first, second and third rotors, the fixing shaft of the first rotor being fixed to the outer cover, and the third rotor and the driving shaft being rotatably supported to extend outwardly;
A second suction port provided at a side of the drive shaft to connect the inside and the outside of the casing to be positioned at a position where the gear of the first rotor and the inner gear of the second rotor are opened as much as possible when the first, second and third rotors rotate; A first suction port positioned at a position where the outer gear of the second rotor and the gear of the third rotor are maximally opened;
When the first, second and third rotors rotate, the second discharge port and the outer gears of the second rotor and the gears of the third rotor, which are provided at the portion where the gears of the first rotor and the inner gear of the second rotor become narrow, become narrow. A two stage compressor unit having a triple troidal rotor comprising a first discharge port positioned at the site;
Connected to the drive shaft and applying a rotary torque to the drive shaft to rotate the first, second, third rotor to suck the external working fluid to the suction port and to compress the working fluid sucked into the suction port A drive unit for discharging in a closed state; Compressor system comprising a.

The method of claim 3, wherein
The first fluid is sucked into the first suction port and is first compressed between the second rotor and the third rotor, and then the working fluid discharged through the first discharge port is guided to the second suction port so that the second fluid flows between the first rotor and the second rotor. And a first discharge port and a second suction port connected to an external connection pipe or a front cover to connect the first discharge port and the second suction port so as to be compressed.

The method of claim 3, wherein
A compressor cover for fixing the center rotation shaft of the first rotor to the outer cover when the first, second and third rotors rotate, and a suction resistance preventing groove extending from the first and second suction port holes in the inner side of the compressor cover; Compressed residual gas rotational resistance preventing grooves extending in the first and second discharge port holes to form grooves; A compression ratio adjustment groove formed extending in the first and second discharge port holes; Compressor system, characterized in that it further comprises.

The method according to claim 1 or 3,
The two-stage compressor unit with the triple trocoidal rotor is one of two stage expansion turbine, two stage fluid pump, vacuum pump, compander (compressor and expander), expansion turbine pump (outer expansion turbine and inner pump) in addition to the industrial compressor. Compressor system, characterized in that applied to one .

The method of claim 3, wherein
An oil chamber and an oil supply path are installed inside the front cover of the compressor to supply oil to the oil supply path of the third rotor,
The oil chamber is installed on the part where the first rotor, the second rotor, and the third rotor are in contact with each other to supply oil to the first rotor, the second rotor, the third rotor, and the center fixed shaft bearing.
And a lubrication system for lubricating the contact surfaces of the compressor front cover and the respective rotors by forming oil circulation grooves in the respective rotors.

The method of claim 3, wherein
Oil is supplied through the oil passage formed inside the drive shaft, and oil is supplied to the bearings disposed on the drive shaft through the oil passage formed inside the drive shaft to the bearing side.
And a lubrication system in which oil is supplied through an oil passage formed inside the drive shaft to supply oil to a bearing disposed on a fixed shaft installed in the front cover of the compressor through the center of the first rotor of the drive shaft and the rotor assembly. Compressor system.