CN215633285U - Piston cooling structure for V-shaped engine and piston cooling nozzle assembly thereof - Google Patents
Piston cooling structure for V-shaped engine and piston cooling nozzle assembly thereof Download PDFInfo
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- CN215633285U CN215633285U CN202121002231.8U CN202121002231U CN215633285U CN 215633285 U CN215633285 U CN 215633285U CN 202121002231 U CN202121002231 U CN 202121002231U CN 215633285 U CN215633285 U CN 215633285U
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Abstract
The utility model discloses a piston cooling structure for a V-shaped engine and a piston cooling nozzle assembly thereof, wherein a mounting seat of the piston cooling nozzle assembly is provided with two side surfaces, namely a side surface I and a side surface II, the mounting seat is provided with an oil groove communicated with the mounting seat oil duct, and the mounting seat is provided with two main cooling nozzles and two auxiliary cooling nozzles communicated with the mounting seat oil duct; one main cooling nozzle is arranged on the side surface I of the mounting seat, and the other main cooling nozzle is arranged on the side surface II of the mounting seat; one auxiliary cooling nozzle is arranged on the side surface I of the mounting seat, and the other auxiliary cooling nozzle is arranged on the side surface II of the mounting seat. Install two main cooling nozzle and two vice cooling nozzle on same mount pad simultaneously, integrate the degree height, be convenient for during the use install to can effectively cool off cold oil duct and piston bottom in the piston simultaneously, guarantee the reliability of engine work.
Description
Technical Field
The utility model relates to the technical field of engines, in particular to a piston cooling structure for a V-shaped engine and a piston cooling nozzle assembly of the piston cooling structure.
Background
The piston cooling nozzle is used as an engine inner cavity for cooling the piston, and an important part for reducing the heat load of the piston is widely applied to the engine, and particularly the 'standard matching' is basically achieved on a supercharged and inter-cooled engine. At present, cooling nozzles used by diesel engines in both straight line and V-shaped are independently arranged on an oil passage, and each cooling nozzle is configured with one cooling nozzle.
For a V-shaped diesel engine, at present, one oil passage is usually arranged in the middle of a V-shaped angle of a machine body or two rows of oil passages are usually arranged on two sides of a cylinder hole, a piston cooling nozzle is usually arranged below the oil passage of the machine body, one cooling nozzle is arranged in each cylinder, and each cooling nozzle exists independently. The cooling nozzle needs to be installed independently, the installation process is complicated, the installation is inconvenient, the labor intensity of operators is increased, and the working efficiency of the operators is reduced.
The cooling nozzle can not effectively cool the cooling oil duct in the piston and the inner cavity at the bottom of the piston at the same time, and can not meet the cooling requirement of the piston with high power density. For a diesel engine with higher operating detonation pressure, the possibility of occlusion between a piston pin and a piston pin hole or a connecting rod small end hole is increased, and the reliability of the engine in working is poor.
Disclosure of Invention
In order to overcome the above defects, the first technical problem solved by the present invention is to provide a piston cooling nozzle assembly, which can effectively cool the cooling oil passage in the piston and the bottom of the piston at the same time, and ensure the reliability of the engine operation.
In order to solve the technical problem, the piston cooling nozzle assembly comprises an installation seat, wherein the installation seat is provided with two side surfaces, namely a side surface I and a side surface II, an oil groove and an installation seat oil duct are arranged on the installation seat, the oil groove is communicated with the installation seat oil duct, and two main cooling nozzles and two auxiliary cooling nozzles which are communicated with the installation seat oil duct are arranged on the installation seat; one main cooling nozzle is arranged on the side surface I of the mounting seat, and the other main cooling nozzle is arranged on the side surface II of the mounting seat; one of the auxiliary cooling nozzles is mounted on a side surface I of the mounting seat, and the other auxiliary cooling nozzle is mounted on a side surface II of the mounting seat.
Further, the main cooling nozzle comprises a main cooling nozzle body, one end of the main cooling nozzle body is fixedly connected to the mounting seat and communicated with the mounting seat oil duct, the other end of the main cooling nozzle body is a free end, and the free end is bent to form a bent portion of the main cooling nozzle body.
Furthermore, a positioning plate is fixedly arranged on the main cooling nozzle pipe body and fixedly connected to the mounting seat.
Further, the main cooling nozzle body and the positioning plate are of an integral structure.
Furthermore, a positioning pin is arranged on the positioning plate.
Furthermore, the positioning pin and the positioning plate are of an integral structure.
Furthermore, the auxiliary cooling nozzle comprises an auxiliary cooling nozzle body, one end of the auxiliary cooling nozzle body is fixedly connected to the mounting seat and communicated with the mounting seat oil duct, the other end of the auxiliary cooling nozzle body is a free end, and the free end is bent to form an auxiliary cooling nozzle body bending part.
Further, an installation plate is fixedly arranged on the auxiliary cooling nozzle pipe body, and the installation plate is fixedly connected to the installation seat.
Further, the auxiliary cooling nozzle body and the mounting plate are of an integral structure.
Based on a general inventive concept, a second technical problem to be solved by the present invention is to provide a piston cooling structure for a V-type engine, which can effectively cool an internal cooling oil passage of a piston and the bottom of the piston at the same time, and ensure the reliability of the operation of the engine.
A piston cooling structure for a V-shaped engine comprises an engine body oil duct arranged on an engine body of the engine, wherein the engine body oil duct is provided with the piston cooling nozzle assembly, and the engine body oil duct of the engine body is communicated with an oil groove of a mounting seat to form a closed oil cavity; the main cooling nozzle and the auxiliary cooling nozzle arranged on the side surface I of the mounting seat cool a piston of a certain cylinder of the A-row cylinder; the main cooling nozzles and the auxiliary cooling nozzles arranged on the side face II of the mounting seat cool the pistons of the corresponding cylinders of the B-row cylinders; the inner cooling oil channel opening of the piston is vertically arranged with the bending part of the main cooling nozzle body corresponding to the inner cooling oil channel opening, and when the piston is positioned at the bottom dead center, the auxiliary cooling nozzle corresponding to the piston can spray lubricating oil into the inner cavity of the piston.
After the technical scheme is adopted, the mounting seat of the piston cooling nozzle assembly has two side surfaces, namely a side surface I and a side surface II, the mounting seat is provided with an oil groove and a mounting seat oil duct, the oil groove is communicated with the mounting seat oil duct, and the mounting seat is provided with two main cooling nozzles and two auxiliary cooling nozzles which are communicated with the mounting seat oil duct; one main cooling nozzle is arranged on the side surface I of the mounting seat, and the other main cooling nozzle is arranged on the side surface II of the mounting seat; one auxiliary cooling nozzle is arranged on the side surface I of the mounting seat, and the other auxiliary cooling nozzle is arranged on the side surface II of the mounting seat. Install two main cooling nozzles and two vice cooling nozzle on same mount pad simultaneously, integrate the degree height, the installation of being convenient for during the use to can effectively cool off cold oil duct and piston bottom in the piston simultaneously, strengthen the lubrication between piston pin and connecting rod stub axle and the piston pin hole when using, guarantee the reliability of engine work.
Drawings
FIG. 1 is a perspective view of a piston cooling nozzle assembly of the present invention;
FIG. 2 is a schematic structural view of a cross-section of the primary cooling nozzle of FIG. 1 taken through a mounting block;
FIG. 3 is a schematic structural view of a cross-section of the secondary cooling nozzle of FIG. 1 taken through the mounting block; (ii) a
FIG. 4 is a schematic structural view of a piston cooling structure of the present invention;
FIG. 5 is a partial cross-sectional view of the piston cooling structure of the present invention;
in the figure, 1, a first main cooling nozzle; 11. a main cooling nozzle body; 111. a pipe body bending part of the main cooling nozzle; 12. a first positioning plate; 2. a second main cooling nozzle; 21. a main cooling nozzle body II; 211. bending parts of the two pipe bodies of the main cooling nozzle; 22. a second positioning plate; 3. a first auxiliary cooling nozzle; 31. a secondary cooling nozzle having a tubular body; 311. a pipe body bending part of the auxiliary cooling nozzle; 32. a first mounting plate; 4. a secondary cooling nozzle II; 41. a secondary cooling nozzle II tube body; 411. the bent part of the second pipe body of the auxiliary cooling nozzle; 42. a second mounting plate; 5. a mounting seat; 51. an oil sump; 6. a first positioning pin; 7. a body; 71. an engine body oil passage; 8. a first cylinder of row A; 9. the first cylinder of row B.
Detailed Description
The utility model is further described with reference to the following figures and examples.
As shown in fig. 1, 4, and 5, a piston cooling structure for a V-type engine includes a block oil passage 71 provided on a block 7 of the engine, the block oil passage 71 is disposed in the middle of a V-shaped angle of the block 7, and a piston cooling nozzle assembly is mounted on the block 7.
Referring to fig. 1, the piston cooling nozzle assembly includes a mounting base 5, and the mounting base 5 has two side surfaces, i.e., a side surface i and a side surface ii. An oil groove 51 and a mounting seat oil passage are arranged on the mounting seat 5, the oil groove 51 is communicated with the mounting seat oil passage, and two main cooling nozzles and two auxiliary cooling nozzles which are communicated with the mounting seat oil passage are arranged on the mounting seat 5; two main cooling nozzles are main cooling nozzle one 1 and main cooling nozzle two 2 respectively, and main cooling nozzle one 1 is installed on side I of mount pad 5, and main cooling nozzle two 2 is installed on side II of mount pad 5. The two auxiliary cooling nozzles are respectively a first auxiliary cooling nozzle 3 and a second auxiliary cooling nozzle 4, the first auxiliary cooling nozzle 3 is installed on the side face I of the installation seat 5, and the second auxiliary cooling nozzle 4 is installed on the side face II of the installation seat 5.
As shown in fig. 1 and fig. 2, the primary cooling nozzle 1 includes a primary cooling nozzle tube 11, one end of the primary cooling nozzle tube 11 is fixedly connected to the mounting seat 5 and is communicated with the corresponding mounting seat oil passage, the other end of the primary cooling nozzle tube 11 is a free end, and the free end is bent to form a primary cooling nozzle tube bending portion 111. A first positioning plate 12 is fixedly arranged on a first main cooling nozzle pipe body 11, and the first positioning plate 12 is fixedly connected to the mounting base 5 through a fixing screw. A main cooling nozzle I tube body 11 and a positioning plate I12 are of an integral structure; or the main cooling nozzle body 11 and the positioning plate 12 are of a split structure, and the main cooling nozzle body 11 and the positioning plate 12 are fixedly connected together in a welding mode. In order to facilitate the installation and positioning of the main cooling nozzle I1, a positioning pin I6 is arranged on the positioning plate I12. The first positioning pin 6 and the first positioning plate 12 are of an integral structure; or the first positioning pin 6 and the first positioning plate 12 are of a split structure, and the first positioning pin 6 and the first positioning plate 12 are fixedly connected together in a welding mode.
The second main cooling nozzle 2 comprises a second main cooling nozzle body 21, one end of the second main cooling nozzle body 21 is fixedly connected to the mounting seat 5 and is communicated with the corresponding mounting seat oil duct, the other end of the second main cooling nozzle body 21 is a free end, and the free end is bent to form a second main cooling nozzle body bending portion 211. And a second positioning plate 22 is fixedly arranged on the second main cooling nozzle body 21, and the second positioning plate 22 is fixedly connected to the mounting base 5 through a fixing screw. The second main cooling nozzle body 21 and the second positioning plate 22 are of an integral structure; or the main cooling nozzle two-tube body 21 and the positioning plate two 22 are of a split structure, and the main cooling nozzle two-tube body 21 and the positioning plate two 22 are fixedly connected together in a welding mode. In order to facilitate the installation and positioning of the second main cooling nozzle 2, a second positioning pin (not shown in the figure) is arranged on the second positioning plate 22. The second positioning pin and the second positioning plate 22 are of an integral structure; or the second positioning pin and the second positioning plate 22 are of a split structure, and the second positioning pin and the second positioning plate 22 are fixedly connected together in a welding mode.
As shown in fig. 1 and fig. 3, the first auxiliary cooling nozzle 3 includes a first auxiliary cooling nozzle tube 31, one end of the first auxiliary cooling nozzle tube 31 is fixedly connected to the mounting seat 5 and is communicated with the corresponding mounting seat oil passage, the other end of the first auxiliary cooling nozzle tube 31 is a free end, and the free end is bent to form a first auxiliary cooling nozzle tube bending portion 311. The first mounting plate 32 is fixedly arranged on the first auxiliary cooling nozzle pipe body 31, and the first mounting plate 32 is fixedly connected to the mounting base 5 through a fixing screw. The auxiliary cooling nozzle I tube body 31 and the mounting plate I32 are of an integral structure; or the auxiliary cooling nozzle pipe body 31 and the mounting plate 32 are of a split structure, and the auxiliary cooling nozzle pipe body 31 and the mounting plate 32 are fixedly connected together in a welding mode.
The second auxiliary cooling nozzle 4 comprises a second auxiliary cooling nozzle body 41, one end of the second auxiliary cooling nozzle body 41 is fixedly connected to the mounting seat 5 and is communicated with the corresponding mounting seat oil duct, the other end of the second auxiliary cooling nozzle body 41 is a free end, and the free end is bent to form a second auxiliary cooling nozzle body bending part 411. And a second mounting plate 42 is fixedly arranged on the second auxiliary cooling nozzle pipe body 41, and the second mounting plate 42 is fixedly connected to the mounting base 5 through a fixing screw. The secondary cooling nozzle secondary pipe body 41 and the mounting plate secondary 42 are of an integral structure; or the secondary cooling nozzle secondary pipe body 41 and the mounting plate secondary 42 are of a split structure, and the secondary cooling nozzle secondary pipe body 41 and the mounting plate secondary 42 are fixedly connected together in a welding mode.
As shown in fig. 1, 4 and 5, after the piston cooling nozzle assembly is mounted on the engine block 7, the engine block oil passage 71 of the engine block 7 of the V-type engine is communicated with the oil groove 51 of the mounting seat 5 of the piston cooling nozzle assembly to form a closed oil chamber. The cylinders of the V-type engine are divided into two rows, namely, an A row of cylinders and a B row of cylinders. One piston cooling nozzle assembly corresponds to one cylinder of the a bank of cylinders and one cylinder of the B bank of cylinders at the same time.
A primary cooling nozzle I1 and a secondary cooling nozzle I3 which are arranged on the side surface I of the mounting seat 5 cool a piston of one cylinder of the cylinder A, the cylinder is defined as a first cylinder 8 of the cylinder A, and the piston is defined as a piston I (not shown in the figure); the second primary cooling nozzle 2 and the second secondary cooling nozzle 4, which are arranged on the side face ii of the mounting seat 5, cool the piston of the corresponding cylinder of the B-row cylinder, which is defined as the first cylinder 9 of the B-row, and which is defined as the second piston (not shown in the figure). The inner cooling oil channel opening of the first piston is perpendicular to the bending part 111 of the first main cooling nozzle pipe body, and when the first piston is located at the bottom dead center, the first auxiliary cooling nozzle 3 can spray lubricating oil into the inner cavity of the first piston. And an inner cooling oil channel opening of the second piston is vertically arranged with the bent part 211 of the second main cooling nozzle body, and when the second piston is positioned at the bottom dead center, the second auxiliary cooling nozzle 4 can spray lubricating oil into an inner cavity of the second piston.
The process of cooling the piston structure of a V-type engine using the piston cooling nozzle assembly of the present invention is described in detail below:
taking an eight-cylinder V-type engine as an example, four piston cooling nozzle assemblies of the present invention are mounted on the engine body 7, and each piston cooling nozzle assembly corresponds to one cylinder of the a-row cylinder and one cylinder of the corresponding B-row cylinder. Taking one of the piston cooling nozzle assemblies as an example, the piston cooling nozzle assembly corresponds to the first cylinder 8 in the row A and the first cylinder 9 in the row B. The first piston is arranged in the first cylinder 8 in the row A, a bent part 111 of a main cooling nozzle pipe body of the first main cooling nozzle 1 is vertically arranged with the first inner cooling oil pipe opening of the first piston, and lubricating oil is sprayed towards the first inner cooling oil pipe opening in the reciprocating motion process of the first piston for cooling and lubricating. The auxiliary cooling nozzle I3 avoids interference with a connecting rod I (not shown) and the like in the installation process, and when the piston I moves to the bottom dead center, the auxiliary cooling nozzle I3 can spray lubricating oil into the inner cavity of the piston I. The second piston is arranged in the first cylinder 9 of the row B, the bent part 211 of the second main cooling nozzle body of the second main cooling nozzle 2 is vertically arranged with the second internal cooling oil channel opening of the second piston, and lubricating oil is sprayed towards the second internal cooling oil channel opening in the reciprocating motion process of the second piston for cooling and lubricating. The secondary cooling nozzle II 4 avoids interfering with a connecting rod II (not shown in the figure) and the like in the installation process, and when the piston II moves to the bottom dead center, the secondary cooling nozzle II 4 can spray lubricating oil to the inner cavity of the piston II for cooling and lubricating.
The technical features (such as a first main cooling nozzle, a first main cooling nozzle pipe body bending portion, a first positioning plate, a second main cooling nozzle pipe body bending portion, a second positioning plate, a first auxiliary cooling nozzle pipe body bending portion, a first mounting plate, a second auxiliary cooling nozzle pipe body bending portion, a second mounting plate, a first positioning pin, a second positioning pin, a first piston, a second piston, a side surface I, a side surface II, a first cylinder in the row A, a first cylinder in the row B and the like) related in the specification are only for distinguishing the technical features and do not represent the position relationship, the mounting sequence, the working sequence and the like among the technical features.
In the description of the present specification, it is to be understood that the terms "side ii", "side i", "internal cooling gallery port", "cavity", "bottom", and the like, are used in the orientations and positional relationships illustrated in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.
The present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make various modifications without creative efforts from the above-described conception, and fall within the scope of the present invention.
Claims (10)
1. A piston cooling nozzle assembly comprises a mounting seat, wherein the mounting seat is provided with two side faces, namely a side face I and a side face II; one main cooling nozzle is arranged on the side surface I of the mounting seat, and the other main cooling nozzle is arranged on the side surface II of the mounting seat; one of the auxiliary cooling nozzles is mounted on a side surface I of the mounting seat, and the other auxiliary cooling nozzle is mounted on a side surface II of the mounting seat.
2. The piston cooling nozzle assembly of claim 1 wherein said primary cooling nozzle includes a primary cooling nozzle body, one end of said primary cooling nozzle body is fixedly connected to said mounting seat and in communication with said mounting seat oil passage, the other end of said primary cooling nozzle body is a free end, and said free end is bent to form a primary cooling nozzle body bending portion.
3. The piston cooling nozzle assembly as in claim 2 wherein said main cooling nozzle body has a retaining plate fixedly attached thereto, said retaining plate being fixedly attached to said mounting block.
4. The piston cooling nozzle assembly as in claim 3 wherein said main cooling nozzle body is of unitary construction with said retaining plate.
5. A piston cooling nozzle assembly according to claim 3 wherein said alignment plate is provided with an alignment pin.
6. The piston cooling nozzle assembly of claim 5 wherein said alignment pin is of unitary construction with said alignment plate.
7. The piston cooling nozzle assembly of claim 2 wherein said secondary cooling nozzle includes a secondary cooling nozzle body, one end of said secondary cooling nozzle body is fixedly connected to said mounting seat and in oil communication with said mounting seat, the other end of said secondary cooling nozzle body is a free end, and said free end is bent to form a secondary cooling nozzle body bending portion.
8. The piston cooling nozzle assembly as in claim 7 wherein said secondary cooling nozzle body has a mounting plate fixedly attached thereto, said mounting plate being fixedly attached to said mounting base.
9. The piston cooling nozzle assembly of claim 8 wherein said secondary cooling nozzle body is of unitary construction with said mounting plate.
10. A piston cooling structure for a V-type engine, comprising a body oil passage provided on a body of the engine, wherein the body is provided with the piston cooling nozzle assembly as claimed in any one of claims 1 to 9, the body oil passage of the body communicating with an oil groove of the mount base and forming a closed oil chamber; the main cooling nozzle and the auxiliary cooling nozzle arranged on the side surface I of the mounting seat cool a piston of a certain cylinder of the A-row cylinder; the main cooling nozzles and the auxiliary cooling nozzles arranged on the side face II of the mounting seat cool the pistons of the corresponding cylinders of the B-row cylinders; the inner cooling oil channel opening of the piston is vertically arranged with the bending part of the main cooling nozzle body corresponding to the inner cooling oil channel opening, and when the piston is positioned at the bottom dead center, the auxiliary cooling nozzle corresponding to the piston can spray lubricating oil into the inner cavity of the piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121002231.8U CN215633285U (en) | 2021-05-11 | 2021-05-11 | Piston cooling structure for V-shaped engine and piston cooling nozzle assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121002231.8U CN215633285U (en) | 2021-05-11 | 2021-05-11 | Piston cooling structure for V-shaped engine and piston cooling nozzle assembly thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215633285U true CN215633285U (en) | 2022-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121002231.8U Active CN215633285U (en) | 2021-05-11 | 2021-05-11 | Piston cooling structure for V-shaped engine and piston cooling nozzle assembly thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215633285U (en) |
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2021
- 2021-05-11 CN CN202121002231.8U patent/CN215633285U/en active Active
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