CN210178437U - Lubricating system of engine - Google Patents
Lubricating system of engine Download PDFInfo
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- CN210178437U CN210178437U CN201921117568.6U CN201921117568U CN210178437U CN 210178437 U CN210178437 U CN 210178437U CN 201921117568 U CN201921117568 U CN 201921117568U CN 210178437 U CN210178437 U CN 210178437U
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Abstract
The lubricating system of the engine comprises an oil pan, an oil pump, a main oil duct of the engine and two high-pressure oil branches, wherein the oil pump comprises a large oil pump and a small oil pump, an oil inlet of the large oil pump is communicated with the oil pan, an oil outlet of the large oil pump is communicated with the main oil duct of the engine, an oil inlet of the small oil pump is communicated with the main oil duct of the engine, an oil outlet of the small oil pump is communicated with inlets of the two high-pressure oil branches, the two high-pressure oil branches respectively pass through the two high-pressure oil delivery pumps, and outlets in the two high-pressure oil branches are communicated with the oil pan. The utility model discloses a lubricating system of engine simple structure can effectually satisfy the lubricated demand of the engine behind the increase high-pressure fuel delivery pump to do benefit to the performance that improves the engine.
Description
Technical Field
The utility model relates to an oil pump field especially indicates a lubricating system of engine.
Background
It is known that adding a high pressure fuel delivery pump to an engine can effectively increase the fuel pressure of the engine, for example: after two high-pressure oil delivery pumps for supplying gasoline are added on the traditional Weichai diesel 260 engine, the fuel pressure of the engine can be improved, the engine is used as a marine high-horsepower engine, the discharge capacity of the engine reaches 340L, when the engine works, in order to ensure the normal operation of each part, a lubricating system is required to provide lubricating oil for each part, only one oil pump for pumping the lubricating oil is arranged on the Weichai diesel 260 engine, the oil pump sucks oil from an oil sump, the oil is pressurized and then delivered to a main oil duct of the engine of the lubricating system through an oil outlet, the main oil duct of the engine is delivered to each part, before the high-pressure oil delivery pump is not added, the lubricating oil with proper pressure and flow can be provided for each part, the pressure of the lubricating oil required by the increased high-pressure oil delivery pump is higher than the pressure of the lubricating oil of the main oil duct of the engine, therefore, the oil pump in the traditional Weichai diesel 260, so that the usability of the engine cannot be further improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a lubricating system of engine, this lubricating system simple structure can effectually satisfy the lubricated demand of the engine after increasing high-pressure fuel delivery pump to do benefit to the performance that improves the engine.
In order to solve the technical problem, the utility model discloses a following technical scheme: the lubricating system of the engine comprises an oil pan, an oil pump and a main oil duct of the engine, wherein the oil pump comprises a large oil pump and a small oil pump, an oil inlet of the large oil pump is communicated with the oil pan, an oil outlet of the large oil pump is communicated with the main oil duct of the engine, an oil inlet of the small oil pump is communicated with the main oil duct of the engine, an oil outlet of the small oil pump is communicated with inlets of two high-pressure oil branches, the two high-pressure oil branches respectively pass through the two high-pressure oil delivery pumps, and outlets in the two high-pressure oil branches are communicated with the oil pan.
Further, the small oil pump is a WD260S gear type oil pump.
Furthermore, when the rotating speed of the small oil pump is 1091r/min, the inlet pressure is 150kpa, and the outlet pressure is 450kpa, the flow is not less than 9L/min.
Or when the rotating speed of the small oil pump is 1451r/min, the inlet pressure is 185kpa, and the outlet pressure is 450kpa, the flow is not less than 18L/min.
Or when the rotating speed of the small oil pump is 3000r/min, the inlet pressure is 376kpa and the outlet pressure is 450kpa, the flow is not less than 20L/min.
The utility model provides a lubricating system of engine has pointed increase the little oil pump that provides lubricating oil for high-pressure fuel delivery pump, under the condition that need not change original oil pump, the utility model discloses solve the lubrication problem of high-pressure fuel delivery pump with simple mode, provide the high-pressure lubricating oil that the main oil duct of engine can not satisfy for high-pressure fuel delivery pump, generally speaking, the utility model discloses simple and easy, with low costs, both can satisfy under the lubricated demand of other parts of engine, the lubrication demand of the high-pressure fuel delivery pump that can also effectually satisfy the increase to performance for improving the engine provides favorable guarantee.
Drawings
FIG. 1 is a block diagram of a lubrication system of an engine according to the present invention;
fig. 2 is the utility model discloses the structure schematic diagram of little machine oil pump in the lubricating system related.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, or interconnected between two elements, directly or indirectly through intervening media, and the specific meaning of the terms may be understood by those skilled in the art according to their specific situation.
Before the oil pump of the present embodiment is explained, it should be particularly mentioned that, through long-term research and exploration, in fact, the lubrication requirement of the oil pump after two high-pressure oil delivery pumps can be met by another way, that is, the large oil pump is redesigned, so that the oil pressure pumped by the large oil pump can meet the design requirement.
The embodiment aims to provide a lubricating system with simple structure and low cost, as shown in fig. 1 and fig. 2, the lubricating system of an engine comprises an oil pan, an oil pump and a main oil duct of the engine, wherein the oil pump comprises a large oil pump and a small oil pump, an oil inlet of the large oil pump is communicated with the oil pan, an oil outlet of the large oil pump is communicated with the main oil duct of the engine, an oil inlet of the small oil pump is communicated with the main oil duct of the engine, an oil outlet of the small oil pump pumps oil to the two high-pressure oil delivery pumps for lubricating, and the lubricated oil returns to the oil pan, specifically, the small oil pump pumps the oil sucked from the main oil duct of the engine to the two high-pressure oil delivery pumps for use after the oil is pressurized, in order to enable the high-pressure oil pumped by the small oil pump to smoothly lubricate the two high-pressure oil delivery pumps, the lubricating system of the, inlets of the two high-pressure oil branches are respectively communicated with an oil outlet of the small oil pump, and the two high-pressure oil branches respectively return high-pressure oil pumped by the small oil pump to the oil pan after passing through the two high-pressure oil delivery pumps.
Specifically, the lubrication system provided by the above embodiment provides lubrication for the Weichai 260 engine with two additional high-pressure oil delivery pumps, in the engine, in order to improve the stability of the system, the large oil pump adopts a 260-gear oil pump, the purchase cost is between 1 and 2 ten thousand, the small oil pump adopts a WD 260S-gear oil pump, the purchase cost is only 2 to 3 hundred, the large oil pump sucks oil from an oil pan, and the oil is pressurized and then delivered to the main oil gallery of the engine through an oil outlet, at this time, the oil pressure of the oil in the main oil gallery of the engine can reach a certain value, for example: 150kpa, 185kpa or 376kpa, the main oil gallery of the engine divides oil into multiple parts, one part of the oil is delivered to the small oil pump, the other part of the oil is directly delivered to each part (except two high-pressure oil delivery pumps) which needs to be lubricated in the engine, each part is lubricated and then flows back to the oil pan, an oil inlet of the small oil pump is communicated with the main oil gallery of the engine, the oil inlet is positive pressure but cannot meet the lubricating requirement of the high-pressure oil delivery pumps, the oil pressure of an oil outlet of the small oil pump can reach 450kpa according to the calculation of the parameters (the oil pressure of the main oil gallery of the engine is 150kpa, 185kpa or 376 kpa), and the high-pressure oil lubricated by the high-pressure oil delivery pumps also has the flow requirement, specifically:
under the condition that the lubricating oil is 15W-40 and the temperature is 65 +/-5 ℃, the performance requirements of the small oil pump are as follows:
1. when the rotating speed of the small oil pump is 1091r/min, the inlet pressure is 150kpa and the outlet pressure is 450kpa, the flow is not less than 9L/min;
2. when the rotating speed of the small oil pump is 1451r/min, the inlet pressure is 185kpa and the outlet pressure is 450kpa, the flow is not less than 18L/min;
3. when the rotating speed of the small oil pump is 3000r/min, the inlet pressure is 376kpa and the outlet pressure is 450kpa, the flow is not less than 20L/min;
and when the rotating speed of the small oil pump is 3000r/min, the opening pressure of the pressure limiting valve is 460-540 kpa.
The above-mentioned embodiment is the utility model discloses the implementation scheme of preferred, in addition, the utility model discloses can also realize by other modes, any obvious replacement is all within the protection scope of the utility model under the prerequisite that does not deviate from this technical scheme design.
In order to make it easier for those skilled in the art to understand the improvement of the present invention over the prior art, some drawings and descriptions of the present invention have been simplified, and in order to clarify, some other elements have been omitted from this document, those skilled in the art should recognize that these omitted elements may also constitute the content of the present invention.
Claims (5)
1. A lubricating system of an engine, comprising an oil pan, an oil pump and a main oil gallery of the engine, characterized in that: the oil pump comprises a large oil pump and a small oil pump, wherein an oil inlet of the large oil pump is communicated with an oil pan, an oil outlet of the large oil pump is communicated with a main oil duct of the engine, an oil inlet of the small oil pump is communicated with the main oil duct of the engine, an oil outlet of the small oil pump is communicated with inlets of two high-pressure oil branches, the two high-pressure oil branches respectively pass through the two high-pressure oil delivery pumps, and outlets in the two high-pressure oil branches are communicated with the oil pan.
2. The lubrication system of an engine according to claim 1, wherein: the small oil pump is a WD260S gear type oil pump.
3. The lubrication system of an engine according to claim 2, wherein: and when the rotating speed of the small oil pump is 1091r/min, the inlet pressure is 150kpa and the outlet pressure is 450kpa, the flow is not less than 9L/min.
4. The lubrication system of an engine according to claim 2, wherein: and when the rotating speed of the small oil pump is 1451r/min, the inlet pressure is 185kpa, and the outlet pressure is 450kpa, the flow is not less than 18L/min.
5. The lubrication system of an engine according to claim 2, wherein: and when the rotating speed of the small oil pump is 3000r/min, the inlet pressure is 376kpa and the outlet pressure is 450kpa, the flow is not less than 20L/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921117568.6U CN210178437U (en) | 2019-07-17 | 2019-07-17 | Lubricating system of engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921117568.6U CN210178437U (en) | 2019-07-17 | 2019-07-17 | Lubricating system of engine |
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| CN210178437U true CN210178437U (en) | 2020-03-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259541A (en) * | 2019-07-17 | 2019-09-20 | 湖南机油泵股份有限公司 | A kind of lubricating system of engine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259541A (en) * | 2019-07-17 | 2019-09-20 | 湖南机油泵股份有限公司 | A kind of lubricating system of engine |
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