CN111120034A - Injection type engine oil circulation oil return device - Google Patents
Injection type engine oil circulation oil return device Download PDFInfo
- Publication number
- CN111120034A CN111120034A CN201911328297.3A CN201911328297A CN111120034A CN 111120034 A CN111120034 A CN 111120034A CN 201911328297 A CN201911328297 A CN 201911328297A CN 111120034 A CN111120034 A CN 111120034A
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- CN
- China
- Prior art keywords
- injection
- oil
- oil return
- nozzle
- outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002347 injection Methods 0.000 title claims abstract description 105
- 239000007924 injection Substances 0.000 title claims abstract description 105
- 239000003921 oil Substances 0.000 title claims abstract description 89
- 239000010705 motor oil Substances 0.000 title claims abstract description 38
- 238000009792 diffusion process Methods 0.000 claims abstract description 7
- 239000010724 circulating oil Substances 0.000 claims abstract description 4
- 230000008859 change Effects 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036544 posture Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/02—Pressure lubrication using lubricating pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/12—Closed-circuit lubricating systems not provided for in groups F01M1/02 - F01M1/10
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/02—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid
- F04F5/10—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid displacing liquids, e.g. containing solids, or liquids and elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
- F04F5/46—Arrangements of nozzles
- F04F5/461—Adjustable nozzles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/02—Pressure lubrication using lubricating pumps
- F01M2001/0207—Pressure lubrication using lubricating pumps characterised by the type of pump
- F01M2001/0246—Adjustable pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/12—Closed-circuit lubricating systems not provided for in groups F01M1/02 - F01M1/10
- F01M2001/123—Closed-circuit lubricating systems not provided for in groups F01M1/02 - F01M1/10 using two or more pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/12—Closed-circuit lubricating systems not provided for in groups F01M1/02 - F01M1/10
- F01M2001/126—Dry-sumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The invention provides an injection type engine oil circulating oil return device, which comprises a main oil collecting pool, a plurality of auxiliary oil collecting pools, an oil return pump, an injection device and an engine oil tank, wherein the main oil collecting pool is connected with the oil return pump; one end of the oil return pump is connected with the main oil collecting pool, and the other end of the oil return pump is connected with an injection nozzle of an injection device; the number of the injection ports of the injection device is consistent with that of the auxiliary oil collecting pools, and the injection ports are connected one by one through pipelines; and the outlet of the diffusion chamber of the injection device is connected with the oil tank through a pipeline. The invention adopts an injection type oil return mode under the condition that a high-power engine adopting a dry crankcase has a plurality of oil collecting pools, thereby reducing the number of oil return pumps, reducing the power consumption of the engine, reducing the volume of the engine and improving the compactness.
Description
Technical Field
The invention belongs to the technical field of engine lubrication, and particularly relates to an injection type engine oil circulating and returning device.
Background
Increasing engine power density and reducing power system size are important development directions for vehicle power. For a vehicle high-power engine adopting a dry crankcase type lubricating system, an oil pan is shallow but very complex, in order to meet oil return under different inclined postures, a plurality of oil collecting pools are often distributed at different parts of the oil pan, and a plurality of oil return pumps are needed to convey engine oil in the oil collecting pools to an engine oil tank in the traditional method, so that the volume and the power consumption of an engine oil return system are large; meanwhile, the flow pressure change of an oil return system caused by the working condition change of the engine needs to be adapted, so that a novel engine oil circulating oil return device needs to be adopted, the volume and the power consumption of the engine oil return system are reduced as much as possible while the flow pressure of different working conditions is met.
Disclosure of Invention
In view of the above, the present invention is directed to an injection engine oil circulation oil return device, so as to meet the requirement of smooth oil return of engine oil circulation under the multi-operating condition of a high-compactness and high-power engine.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the working principle is as follows: the engine oil in the main oil collecting pool enters the injection device through the oil return pump, a low-pressure area is formed behind the nozzle of the injection device, the engine oil in the plurality of auxiliary oil collecting pools is injected into the suction chamber of the injection device, the engine oil in the suction chamber is mixed with the engine oil at the outlet of the nozzle in the mixing chamber of the injection device, and then the engine oil enters the engine oil tank after entering the diffusion chamber of the injection device for diffusion, so that the oil return work in the engine oil circulation is completed.
An injection type engine oil circulating oil return device comprises a main oil collecting pool, a plurality of auxiliary oil collecting pools, an oil return pump, an injection device and an engine oil tank; one end of the oil return pump is connected with the main oil collecting pool, and the other end of the oil return pump is connected with an injection nozzle of an injection device; the number of the injection ports of the injection device is consistent with that of the auxiliary oil collecting pools, and the injection ports are connected one by one through pipelines; and the outlet of the diffusion chamber of the injection device is connected with the oil tank through a pipeline.
Furthermore, an annular second elastic element is installed at the outlet of the injection nozzle, and the section of the outlet of the injection nozzle is variable through the elastic change of the second elastic element.
Furthermore, a first elastic element is arranged between the outer side of the injection nozzle and the left end of the suction chamber of the injection device, so that the nozzle can move left and right in the suction chamber; and a sealing element is arranged between the contact positions of the injection nozzle and the suction chamber and is in clearance sliding fit with the contact positions of the injection nozzle and the suction chamber.
Further, the elastic coefficient of the second elastic element is consistent with the change slope of the pressure before the outlet of the nozzle.
Compared with the prior art, the invention has the following advantages:
(1) for a high-power engine adopting a dry crankcase, under the condition that a plurality of oil collecting pools are arranged, the device adopts an injection type oil return mode, so that the number of oil return pumps is reduced, the power consumption of the engine is reduced, the volume of the engine is reduced, and the compactness is improved;
(2) meanwhile, in the flow variation range of the oil return pump, the cross section of the nozzle is automatically adjusted according to the flow pressure, so that the injection device realizes the injection function under different nozzle flows; in addition, the distance between the nozzle outlet and the mixing chamber inlet is adjusted through the elastic element, so that the self-adaptive adjustment of the flow of the injected fluid is realized, and the volume of a control system is saved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic diagram of an injection engine oil circulation oil return device according to an embodiment of the invention.
Description of reference numerals:
the oil recovery device comprises a main oil collecting pool 1, a first auxiliary oil collecting pool 2, a second auxiliary oil collecting pool 3, a return oil pump 4, an injection device 5, an injection nozzle 6, a first elastic element 7, a sealing element 8, a first injection port 9, a second injection port 10, a suction chamber 11, a second elastic element 12, a mixing chamber 13, a pressure expansion chamber 14 and an oil tank 15.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "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 used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The invention relates to an injection type engine oil circulation oil return device, which comprises a main oil collecting pool 1, a first auxiliary oil collecting pool 2, a second auxiliary oil collecting pool 3, an oil return pump 4, an injection device 5 and an engine oil tank 15, wherein the main oil collecting pool is connected with the first auxiliary oil collecting pool 2; one end of the oil return pump 4 is connected with the main oil collecting pool 1, and the other end of the oil return pump is connected with an injection nozzle 6 of an injection device 5; the number of the injection ports of the injection device 5 is consistent with that of the auxiliary oil collecting pools, and the injection ports are connected through pipelines; in the embodiment, the first injection port 9 and the second injection port 10 of the injection device 5 are respectively connected with the first sub oil collecting tank 2 and the second sub oil collecting tank 3 through pipelines; and an outlet of a pressure expansion chamber 14 of the injection device 5 is connected with the oil tank 5 through a pipeline.
The injection device 5 comprises an injection nozzle 6, a first elastic element 7, a sealing element 8, an injection port I9, an injection port II 10, a suction chamber 11, a second elastic element 12, a mixing chamber 13 and a pressure expansion chamber 14;
the outlet front pressure of the injection nozzle 6 is in a certain proportion to the nozzle flow, and the outlet front pressure of the injection nozzle 6 is automatically adjusted through the nozzle flow change. Specifically, an annular second elastic element 12 is installed at the outlet of the injection nozzle 6, the outlet section of the nozzle 6 is variable through elastic change of the second elastic element 12, when the flow of the injection nozzle 6 is increased, the front pressure of the outlet of the injection nozzle 6 is increased, and the annular second elastic element 12 is compressed to increase the outlet section; when the injection flow is reduced, the pressure in front of the outlet of the injection nozzle 6 is reduced, the annular second elastic element 12 is recovered to reduce the section of the outlet, the section of the outlet of the nozzle is variable through the elastic change of the annular second elastic element 12, a proper low-pressure area is formed behind the outlet of the nozzle, and the injection function under different nozzle flows is realized.
According to the embodiment of the invention, the elastic coefficient of the second elastic element 12 is consistent with the change slope of the pressure before the outlet of the injection nozzle 6, the section of the second elastic element 12 can be automatically adjusted according to the pressure before the outlet of the nozzle 6, and the space of a control system is saved.
According to the embodiment of the invention, the first elastic element 7 is arranged between the injection nozzle 6 and the suction chamber 11, so that the nozzle 6 can move left and right in the suction chamber 11, the distance between the outlet of the nozzle 6 and the inlet of the mixing chamber 13 is adjusted, the self-adaptive adjustment of the flow of the injection port I9 and the injection port II 10 is further realized, and the space of a control system is saved. The sealing element 8 is arranged between the injection nozzle 6 and the suction chamber 11 and is in clearance sliding fit.
The volume of the injection device 5 is smaller than that of the oil return pump 4, when the oil return pump 4 pumps oil from the main oil collecting pool 1, the injection device 5 is used for injecting the engine oil in the first auxiliary oil collecting pool 2 and the second auxiliary oil collecting pool 3 to the engine oil tank 5, the number of the oil return pumps is reduced, the power consumption is reduced, and when the number of the auxiliary oil collecting pools is large, the volume of a system is greatly reduced.
The invention relates to an injection engine oil circulation oil return device, which comprises the following working processes:
the oil return pump 4 pumps the engine oil in the main oil collecting pool 1 into the injection device 5 to form a low-pressure area behind the nozzle 6 of the injection device, the engine oil in the first auxiliary oil collecting pool 2 and the second auxiliary oil collecting pool 3 is respectively injected into the suction chamber 11 of the injection device through the first injection port 9 and the second injection port 10, the engine oil in the suction chamber 11 and the engine oil at the outlet of the nozzle 6 are mixed in the mixing chamber 13 of the injection device, then enter the diffusion chamber 14 of the injection device for diffusion and then enter the engine oil tank 15, and the oil return work in the engine oil circulation is completed;
when the oil return flow is large, the pressure in front of the outlet of the injection nozzle 6 is large, the pressure borne by the second elastic element 12 is also large, the formed outlet section is also large, the outlet flow rate of the injection nozzle 6 is also large, and a low-pressure area is formed at the outlet of the injection nozzle 6; when the oil return flow is small, the pressure in front of the outlet of the injection nozzle 6 is small, the pressure borne by the second elastic element 12 is also small, the formed outlet section is small, the outlet flow speed of the nozzle 6 is still large when the flow is small, a low-pressure area can be formed, and oil injection at different flows is realized;
when the internal pressure of the suction chamber 11 is small, the suction chamber 11 is moved leftwards through the first elastic element 7, the distance between the injection nozzle 6 and the inlet of the mixing chamber 13 is reduced, and the injection amount is increased; when the internal pressure of the suction chamber 11 is small, the suction chamber 11 is moved rightwards through the first elastic element 7, the distance between the injection nozzle 6 and the inlet of the mixing chamber 13 is increased, the injection amount is reduced, and the self-adaptive adjustment of the flow of the first injection port 9 and the flow of the second injection port 10 under different working conditions is realized.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (4)
1. An injection type engine oil circulating oil return device is characterized by comprising a main oil collecting pool (1), a plurality of auxiliary oil collecting pools, an oil return pump (4), an injection device (5) and an engine oil tank (15); one end of the oil return pump (4) is connected with the main oil collecting pool (1), and the other end of the oil return pump is connected with an injection nozzle (6) of an injection device (5); the number of the injection ports of the injection device is consistent with that of the auxiliary oil collecting pools, and the injection ports are connected in a one-to-one correspondence manner through pipelines; and an outlet of a diffusion chamber (14) of the injection device (5) is connected with an oil tank (15) through a pipeline.
2. The injection type engine oil circulation oil return device of claim 1, characterized in that: an annular second elastic element (12) is arranged at the outlet of the injection nozzle (6), and the outlet section of the injection nozzle (6) is variable through the elastic change of the second elastic element (12).
3. The injection type engine oil circulation oil return device of claim 1, characterized in that: a first elastic element (7) is arranged between the outer side of the injection nozzle (6) and the left end of a suction chamber (11) of the injection device (5), so that the nozzle (6) can move left and right in the suction chamber (11); and a sealing element (8) is arranged between the contact positions of the injection nozzle (6) and the suction chamber (11) and is in clearance sliding fit.
4. The injection type engine oil circulation oil return device of claim 2, characterized in that: the elastic coefficient of the second elastic element (12) is consistent with the change slope of the pressure before the outlet of the nozzle (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911328297.3A CN111120034A (en) | 2019-12-20 | 2019-12-20 | Injection type engine oil circulation oil return device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911328297.3A CN111120034A (en) | 2019-12-20 | 2019-12-20 | Injection type engine oil circulation oil return device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111120034A true CN111120034A (en) | 2020-05-08 |
Family
ID=70500824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911328297.3A Pending CN111120034A (en) | 2019-12-20 | 2019-12-20 | Injection type engine oil circulation oil return device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111120034A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03175109A (en) * | 1989-12-05 | 1991-07-30 | Nippon Soken Inc | Blow-by gas reducing device |
| CN201297487Y (en) * | 2008-12-02 | 2009-08-26 | 沈阳东北电力调节技术有限公司 | Shooting-flow circulating lubrication system |
| CN103382864A (en) * | 2013-07-12 | 2013-11-06 | 中国北方发动机研究所(天津) | Engine oil pump with inlet ejector pipe |
| EP2781704A1 (en) * | 2013-03-01 | 2014-09-24 | Rolls-Royce plc | Chamber fluid removal system |
| CN106678087A (en) * | 2017-03-08 | 2017-05-17 | 华北电力大学（保定） | Device used for adjusting basic state parameters of working medium |
| CN108131335A (en) * | 2016-11-30 | 2018-06-08 | 中国航发商用航空发动机有限责任公司 | Aircraft engine fuel oil system and its larynx mouth are pumped away from variable-spray |
| CN207485492U (en) * | 2017-10-26 | 2018-06-12 | 新乡航空工业(集团)有限公司 | A kind of integrated lubrication and low-voltage fuel device |
| CN110541849A (en) * | 2018-05-29 | 2019-12-06 | 中国航发商用航空发动机有限责任公司 | Oil return ejector and aircraft engine fuel system comprising same |
-
2019
- 2019-12-20 CN CN201911328297.3A patent/CN111120034A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03175109A (en) * | 1989-12-05 | 1991-07-30 | Nippon Soken Inc | Blow-by gas reducing device |
| CN201297487Y (en) * | 2008-12-02 | 2009-08-26 | 沈阳东北电力调节技术有限公司 | Shooting-flow circulating lubrication system |
| EP2781704A1 (en) * | 2013-03-01 | 2014-09-24 | Rolls-Royce plc | Chamber fluid removal system |
| CN103382864A (en) * | 2013-07-12 | 2013-11-06 | 中国北方发动机研究所(天津) | Engine oil pump with inlet ejector pipe |
| CN108131335A (en) * | 2016-11-30 | 2018-06-08 | 中国航发商用航空发动机有限责任公司 | Aircraft engine fuel oil system and its larynx mouth are pumped away from variable-spray |
| CN106678087A (en) * | 2017-03-08 | 2017-05-17 | 华北电力大学（保定） | Device used for adjusting basic state parameters of working medium |
| CN207485492U (en) * | 2017-10-26 | 2018-06-12 | 新乡航空工业(集团)有限公司 | A kind of integrated lubrication and low-voltage fuel device |
| CN110541849A (en) * | 2018-05-29 | 2019-12-06 | 中国航发商用航空发动机有限责任公司 | Oil return ejector and aircraft engine fuel system comprising same |
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Application publication date: 20200508 |
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