CN104727999A - Automatic air-exhausting fuel oil filtering system - Google Patents
Automatic air-exhausting fuel oil filtering system Download PDFInfo
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- CN104727999A CN104727999A CN201510103695.0A CN201510103695A CN104727999A CN 104727999 A CN104727999 A CN 104727999A CN 201510103695 A CN201510103695 A CN 201510103695A CN 104727999 A CN104727999 A CN 104727999A
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Abstract
The invention discloses an automatic air-exhausting fuel oil filtering system. The automatic air-exhausting fuel oil filtering system comprises a filter base and a filter tank arranged on the filter base. The filter base is provided with an oil inlet cavity and an oil outlet cavity, and the oil inlet cavity is communicated with an inner cavity of the filter tank through an oil inlet channel. An automatic air exhausting device is arranged above the oil inlet cavity or the oil inlet channel and comprises a one-way valve seat. The one-way valve seat comprises a valve seat body, an outer installation head, an inner installation head, installation outer threads arranged on the outer installation head and matched with threads, first installation inner threads, second installation inner threads, a valve cavity arranged in the valve seat body, a one-way valve body, a sealing ring, a one-way valve spring and an in-through-hole hexagonal nut, wherein the valve seat body, the outer installation head and the inner installation head are integrated, the first installation inner threads and the second installation inner threads are arranged on the inner installation head and matched with threads, and the one-way valve body, the sealing ring, the one-way valve spring and the in-through-hole hexagonal nut are installed in the valve cavity. By means of the automatic air-exhausting fuel oil filtering system, air in an oil way can be effectively and automatically removed, fuel oil can be saved, it can be guaranteed that an engine stably runs, flameout conditions can be avoided in the running process, and the service life of movement parts in a high-pressure oil pump is prolonged.
Description
Technical field
The present invention relates to fuel oil filtering system field, in particular, particularly a kind of automatic vent fuel oil filtering system.
Background technique
Modern fuel oil filtering system is formed primarily of the prefilter being with water to be separated and main filter two-stage filter.Prefilter is generally arranged in the pipeline between oil transfer pump entrance and fuel tank, and main filter is then arranged in the pipeline between oil transfer pump outlet and high-pressure service pump, and the mounting point of main filter is relatively higher than high-pressure service pump position.Along with main filter filter material filter precision constantly promotes, make the ventilating performance of filtering material after being soaked by diesel oil more and more lower, the external world enter into pipeline gas will major part be gathered in main filter inside be difficult to discharge.But in oil-fired system, it is inevitable that air enters in low pressure line.Low pressure line enters air and mainly contains following three kinds of modes: 1. the inefficacy of the pipeline component such as oil pipe is damaged, combination seal packing ring loosens; 2. fuel tank diesel oil liquid level is lower than oil inlet pipe or occur that in vehicle climb and fall process fuel tank diesel oil liquid level tilts, and causes the oil-feed mouth of pipe higher than diesel oil liquid level; 3. diesel oil is under condition of negative pressure, and the gas be dissolved in diesel oil is precipitated.Low pressure line air inlet can cause motor to occur shake, and stopping working gradually, causes again starting.Existing main filter is generally all designed with an air bleeder screw plug, but after the low pressure line described in occurring enters air, motor can not run, and now manually can only unscrew air bleeder screw plug, and pressing hand pump, carries out manual exhaust.Therefore be vented operation process loaded down with trivial details, waste time and energy, and part diesel oil can be there is in exhaust process overflow from air bleeder screw plug, cause waste of fuel.
Summary of the invention
The object of the invention is the problem that can not automatically effectively be vented for the fuel filter in existing fuel oil filtering system, and a kind of fuel oil filtering system with automatic ventilating function is provided.
For achieving the above object, the present invention is by the following technical solutions:
A kind of automatic vent fuel oil filtering system, this system comprises filter seat and is arranged at the filter cleaner tank on filter seat, described filter seat is provided with oil suction chamber and goes out oil pocket, oil suction chamber is by oil inlet passage and filter cleaner tank intracavity inter-connection, go out oil pocket to be connected with oil discharge passage, above described oil suction chamber or oil inlet passage, be provided with automatic exhaust device.
Further, described automatic exhaust device is positioned at the peak place above oil suction chamber or oil inlet passage.
Further, described automatic exhaust device comprises one-way valve seat, described one-way valve seat comprises the valve seat body of integral type, outer mounting head, interior mounting head, to be located in outer mounting head and with the installation outside thread of screw-thread fit, be located at interior mounting head and with first of screw-thread fit, internal thread and second be installed and internal thread is installed, be located at the valve pocket in valve seat body, be installed on the check valve body in valve pocket, seal ring, check valve spring, through hole hexagonal socket nut, and be located in outer mounting head, and for being communicated with valve pocket and the exhaust port installing externally threaded end face, described second installs internal thread is connected with oil pipe one end, the oil pipe the other end is connected with fuel tank.
Further, described check valve body is provided with inner sleeve, 1 ~ 8 mistake oil hole, groove, groove is provided with seal ring, puts in check valve spring is arranged at.
Further, described through hole hexagonal socket nut head is provided with positioning boss, and positioning boss is connected with check valve spring, and through hole hexagonal socket nut is installed internal thread with first of interior mounting head and is connected.
Further, the cracking pressure value scope 3 ~ 6bar of described check valve body.
Further, the diameter of described exhaust port is between 0.01 ~ 1mm.
Further, the diameter of described oil hole is excessively between 1 ~ 5mm.
Further, between described installation outside thread and valve pocket, be provided with outer-hexagonal nut, between described outer-hexagonal nut and filter seat, be provided with composite seal packing ring.
Further, described exhaust port front end is filled with sintered copper material.
The technical solution adopted in the present invention has following beneficial effect:
1, when normal working of engine, effectively automatically can get rid of the air in oil circuit, ensure that motor is stable, avoid running and occur flame-out situation;
2, motor is when the slow-speed of revolution, and the check valve body in automatic exhaust device is closed, and ensure that oil transfer pump is stablized to the oil pressure in high-pressure service pump pipeline, avoids motor to shake and infringement, protects the moving element working life of high pressure oil pump simultaneously;
3, motor is when ignition trigger, check valve body in automatic exhaust device is closed, ensure that the pressure of low pressure line is set up fast, rail pressure can be established to the pressure that motor successfully starts under the extremely short time, ensure that and start function normally to start, effectively solve because pipeline exists gas and difficult starting problem;
4, because automatic exhaust device communicates with fuel tank through return tube, do not have fuel oil in exhaust process and leak, fuel oil waste when avoiding bleeding.
Accompanying drawing content
Fig. 1 is front view of the present invention;
Fig. 2 is A-A cross-sectional view of the present invention;
Fig. 3 is B-B cross-sectional view of the present invention;
Fig. 4 is the I part partial enlargement structural representation of Fig. 3;
Fig. 5 is one-way valve seat structural drawing of the present invention;
Fig. 6 is through hole hexagonal socket nut structural drawing of the present invention;
Fig. 7 is automatic exhaust device outline drawing of the present invention;
Fig. 8 is check valve body structural drawing of the present invention;
Fig. 9 is scheme of installation of the present invention.
Embodiment
Technological scheme of the present invention is further illustrated by embodiment below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of automatic vent fuel oil filtering system, the filter cleaner tank 3 that this system comprises filter seat 2 and is arranged on filter seat 2, automatic exhaust device 1 is provided with above filter seat 2, as shown in Figure 2 to 3, described filter seat 2 is provided with oil suction chamber 23 and goes out oil pocket, and oil suction chamber 23 is by oil inlet passage 21 and filter cleaner tank 3 intracavity inter-connection, go out oil pocket to be connected with oil discharge passage 22, above described oil suction chamber 23 or oil inlet passage 21, be provided with automatic exhaust device 1.
As Fig. 4, Fig. 5, shown in Fig. 9, described automatic exhaust device 1 comprises one-way valve seat 11, described one-way valve seat 11 comprises the valve seat body of integral type, outer mounting head, interior mounting head, to be located in outer mounting head and with the installation outside thread 115 of screw-thread fit, be located at interior mounting head and with first of screw-thread fit, internal thread 112 and second be installed and internal thread 111 is installed, be located at the valve pocket 113 in valve seat body, be installed on the check valve body 14 in valve pocket 113, seal ring 15, check valve spring 13, through hole hexagonal socket nut 12, and be located in outer mounting head, and for being communicated with valve pocket 113 and the exhaust port 114 of end face installing outside thread 115, described second installs internal thread 111 is connected with oil pipe 5 one end, oil pipe 5 the other end is connected with fuel tank 6.
As shown in Figure 8, described check valve body 14 is provided with inner sleeve 141,6 and crosses oil hole 142, groove 143, and groove 143 is provided with seal ring, and check valve spring 13 is arranged in inner sleeve 141.
As shown in Figure 6, described through hole hexagonal socket nut 12 head is provided with positioning boss 121, and positioning boss 121 is connected with check valve spring 13, and through hole hexagonal socket nut 12 is installed internal thread 112 with first of interior mounting head and is connected.
The cracking pressure value scope 3 ~ 6bar of described check valve body 14.
The diameter of described exhaust port 114 is between 0.01 ~ 1mm.
The diameter of described oil hole 142 is excessively between 1 ~ 5mm.
As shown in Figure 7, between described installation outside thread 115 and valve pocket 113, be provided with outer-hexagonal nut 116, between described outer-hexagonal nut 116 and filter seat 2, be provided with composite seal packing ring 4.
When arranging exhaust port 114 and being less than 0.1mm, machining difficulty or high cost, then adopt sintered copper or ventilative oil-resisting material to fill exhaust port 114 fore-end, the fuel oil that fuel oil during exhaust in oil suction chamber 23 is back to fuel tank by exhaust port 114 is less, does not even have.
The present invention in use, when engine speed is more than 800 turns or the fuel pressure value of oil suction chamber reach 3 ~ 6bar, check valve body 14 in automatic exhaust device 1 is opened, the air that oil suction chamber 23 exists and a small amount of fuel oil flow into valve pocket 113 by exhaust port 114, pass through oil hole 142 by valve pocket 113 again, finally flow through through hole hexagonal socket nut 12 through oil pipe 5 in fuel tank 6.When motor lower than when 800 turns or the fuel pressure value of oil suction chamber 23 lower than 3bar, the check valve body 14 in automatic exhaust device 1 is closed.Motor at ignition trigger time, due to start rotating speed lower than 400 turns, the fuel pressure of oil suction chamber 23 is lower, and the check valve body 14 in automatic exhaust device 1 is closed.
More than show and describe basic principle of the present invention and major character.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (10)
1. an automatic vent fuel oil filtering system, this system comprises filter seat (2) and is arranged at the filter cleaner tank (3) on filter seat (2), it is characterized in that: described filter seat (2) is provided with oil suction chamber (23) and goes out oil pocket, oil suction chamber (23) is by oil inlet passage (21) and filter cleaner tank (3) intracavity inter-connection, go out oil pocket to be connected with oil discharge passage (22), described oil suction chamber (23) or oil inlet passage (21) top are provided with automatic exhaust device (1).
2. automatic vent fuel oil filtering system according to claim 1, is characterized in that: described automatic exhaust device (1) is positioned at the peak place of oil suction chamber (23) or oil inlet passage (21) top.
3. automatic vent fuel oil filtering system according to claim 1, it is characterized in that: described automatic exhaust device (1) comprises one-way valve seat (11), described one-way valve seat (11) comprises the valve seat body of integral type, outer mounting head, interior mounting head, to be located in outer mounting head and with the installation outside thread (115) of screw-thread fit, be located at interior mounting head and with first of screw-thread fit, internal thread (112) and second be installed and internal thread (111) is installed, be located at the valve pocket (113) in valve seat body, be installed on the check valve body (14) in valve pocket (113), seal ring (15), check valve spring (13), through hole hexagonal socket nut (12), and be located in outer mounting head, and for being communicated with valve pocket (113) and the exhaust port (114) of end face installing outside thread (115), described second installs internal thread (111) is connected with oil pipe (5) one end, oil pipe (5) the other end is connected with fuel tank (6).
4. automatic vent fuel oil filtering system according to claim 3, it is characterized in that: described check valve body (14) be provided with inner sleeve (141), 1 ~ 8 cross oil hole (142), groove (143), (143) are provided with seal ring to groove, and check valve spring (13) is arranged in inner sleeve (141).
5. automatic vent fuel oil filtering system according to claim 3, it is characterized in that: described through hole hexagonal socket nut (12) head is provided with positioning boss (121), positioning boss (121) is connected with check valve spring (13), and through hole hexagonal socket nut (12) and first of interior mounting head are installed internal thread (112) and be connected.
6. automatic vent fuel oil filtering system according to claim 3, is characterized in that: the cracking pressure value scope 3 ~ 6bar of check valve body (14).
7. automatic vent fuel oil filtering system according to claim 3, is characterized in that: the diameter of described exhaust port (114) is between 0.01 ~ 1mm.
8. automatic vent fuel oil filtering system according to claim 4, is characterized in that: the diameter of described oil hole (142) is excessively between 1 ~ 5mm.
9. automatic vent fuel oil filtering system according to claim 3, it is characterized in that: between described installation outside thread (115) and valve pocket (113), be provided with outer-hexagonal nut (116), between described outer-hexagonal nut (116) and filter seat (2), be provided with composite seal packing ring (4).
10. automatic vent fuel oil filtering system according to claim 3, is characterized in that: described exhaust port (114) front end is filled with sintered copper material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510103695.0A CN104727999A (en) | 2015-03-09 | 2015-03-09 | Automatic air-exhausting fuel oil filtering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510103695.0A CN104727999A (en) | 2015-03-09 | 2015-03-09 | Automatic air-exhausting fuel oil filtering system |
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| Publication Number | Publication Date |
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| CN104727999A true CN104727999A (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510103695.0A Pending CN104727999A (en) | 2015-03-09 | 2015-03-09 | Automatic air-exhausting fuel oil filtering system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953022A (en) * | 2018-10-09 | 2018-12-07 | 广西玉柴机器股份有限公司 | Prevent the diesel fuel filter of gather qi together |
| CN109736986A (en) * | 2019-01-08 | 2019-05-10 | 河北亿利橡塑集团有限公司 | A kind of fuel filter pedestal assembly |
| CN112727650A (en) * | 2020-12-21 | 2021-04-30 | 中国船舶重工集团公司第七一一研究所 | Fuel oil duplex filter |
| CN112983705A (en) * | 2021-03-19 | 2021-06-18 | 广西玉柴机器股份有限公司 | Exhaust joint |
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| CN2165242Y (en) * | 1993-09-25 | 1994-05-18 | 欧玉福 | Diesel fine filter |
| CN2332823Y (en) * | 1997-04-03 | 1999-08-11 | 青岛无线电四厂 | Dual-chamber spirally-mounted self-exhausting diesel magnetizing cleaner |
| CN2439549Y (en) * | 2000-08-18 | 2001-07-18 | 何得田 | Fuel, gas and water separation and dirt reducing device for diesel engine |
| JP4414836B2 (en) * | 2004-08-03 | 2010-02-10 | 和興フィルタテクノロジー株式会社 | filter |
| JP2010156255A (en) * | 2008-12-26 | 2010-07-15 | Denso Corp | High pressure pump |
| CN201868523U (en) * | 2010-10-29 | 2011-06-15 | 中航锂电（洛阳）有限公司 | Lithium ion power battery with safety valve |
| CN202381773U (en) * | 2011-12-09 | 2012-08-15 | 四川迪威消防设备制造有限公司 | Gas control pipeline one-way valve |
| CN204553029U (en) * | 2015-03-09 | 2015-08-12 | 广西华原过滤系统股份有限公司 | A kind of automatic vent fuel oil filtering system |
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2015
- 2015-03-09 CN CN201510103695.0A patent/CN104727999A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2165242Y (en) * | 1993-09-25 | 1994-05-18 | 欧玉福 | Diesel fine filter |
| CN2332823Y (en) * | 1997-04-03 | 1999-08-11 | 青岛无线电四厂 | Dual-chamber spirally-mounted self-exhausting diesel magnetizing cleaner |
| CN2439549Y (en) * | 2000-08-18 | 2001-07-18 | 何得田 | Fuel, gas and water separation and dirt reducing device for diesel engine |
| JP4414836B2 (en) * | 2004-08-03 | 2010-02-10 | 和興フィルタテクノロジー株式会社 | filter |
| JP2010156255A (en) * | 2008-12-26 | 2010-07-15 | Denso Corp | High pressure pump |
| CN201868523U (en) * | 2010-10-29 | 2011-06-15 | 中航锂电（洛阳）有限公司 | Lithium ion power battery with safety valve |
| CN202381773U (en) * | 2011-12-09 | 2012-08-15 | 四川迪威消防设备制造有限公司 | Gas control pipeline one-way valve |
| CN204553029U (en) * | 2015-03-09 | 2015-08-12 | 广西华原过滤系统股份有限公司 | A kind of automatic vent fuel oil filtering system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953022A (en) * | 2018-10-09 | 2018-12-07 | 广西玉柴机器股份有限公司 | Prevent the diesel fuel filter of gather qi together |
| CN109736986A (en) * | 2019-01-08 | 2019-05-10 | 河北亿利橡塑集团有限公司 | A kind of fuel filter pedestal assembly |
| CN112727650A (en) * | 2020-12-21 | 2021-04-30 | 中国船舶重工集团公司第七一一研究所 | Fuel oil duplex filter |
| CN112983705A (en) * | 2021-03-19 | 2021-06-18 | 广西玉柴机器股份有限公司 | Exhaust joint |
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Application publication date: 20150624 |
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