CN113202671A - Novel high-low pressure oil supply system and oil supply method - Google Patents
Novel high-low pressure oil supply system and oil supply method Download PDFInfo
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- CN113202671A CN113202671A CN202110513501.XA CN202110513501A CN113202671A CN 113202671 A CN113202671 A CN 113202671A CN 202110513501 A CN202110513501 A CN 202110513501A CN 113202671 A CN113202671 A CN 113202671A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/3005—Details not otherwise provided for
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/32—Controlling fuel injection of the low pressure type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
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Abstract
The invention discloses a novel high-low pressure oil supply system and an oil supply method, and relates to the technical field of oil supply systems. The novel high-low pressure oil supply system comprises a flow divider, an oil supply device main body, a main oil transportation pressure pipe, a main oil supply module, an auxiliary oil supply module, an oil transportation module, an oil outlet module and a pressure relief module; the main oil supply module comprises a main oil pipeline, the main oil pipeline is fixedly connected between the flow divider and the oil supply device main body, and a main oil pressure speed regulating valve is installed at one end, close to the oil supply device main body, of the main oil pipeline; the auxiliary oil supply module comprises an auxiliary oil delivery pipe, the auxiliary oil delivery pipe is fixedly connected between the flow divider and the oil supply device main body, and an auxiliary oil pressure speed regulating valve is installed at one end, close to the oil supply device main body, of the auxiliary oil delivery pipe. By designing the main oil supply module and the auxiliary oil supply module, the oil supply system can be provided with two sets of oil supply oil ways, and the oil supply system can also normally operate even if the main oil supply module fails.
Description
Technical Field
The invention relates to the technical field of oil supply systems, in particular to a novel high-low pressure oil supply system.
Background
The oil supply system has different structural compositions due to different purposes, but the main components are basically the same and generally comprise parts such as branch oil supply systems, oil pumps, auxiliary devices, pressure adjusting devices and the like; in recent years, most of the vehicles on the market adopt an injection fuel supply system, and the main reason is to meet increasingly stringent environmental regulations. The injection oil supply system is evolved from early mechanical single-point injection to the current electronic multi-point injection, so what is called single-point injection and multi-point injection, and if a four-cylinder engine is provided with a single oil injection nozzle arranged in front of a branch of an intake manifold, oil is injected from one position and then is distributed into four cylinders along with intake air, which is single-point injection, and the oil injection nozzle is arranged in an air inlet channel of each of the four cylinders, each cylinder of the oil injection nozzle is provided with one oil injection nozzle, and the four-cylinder engine is provided with four oil injection nozzles, which is called multi-point injection.
From the view of a fuel path, firstly, a fuel pump sends fuel in a fuel tank to a fuel delivery pipe, the fuel delivery pipe sends the fuel to a fuel rail, the fuel rail controls the fuel pressure through a pressure regulating valve, and the fuel pressure sent to each cylinder is ensured to be the same; on the other hand, the pressure regulating valve can also send excessive oil to the oil return pipe by means of pressure relief and flow back to the oil tank; one end of the oil nozzle is connected to the oil rail, and the nozzle is located on the air inlet channel of each cylinder.
The oil supply system is an important component of mechanical transmission systems of vehicles and the like, and various different types of oil supply systems are available in the market at present, but most of the existing oil supply systems are too simple in structural design and are easy to damage in the actual use process, and the oil supply system is easy to cause the integral fault of the transmission system once the oil supply system fails, so that the normal use of the vehicles is influenced; therefore, a new high-low pressure oil supply system is developed.
Disclosure of Invention
The invention aims to provide a novel high-low pressure oil supply system and an oil supply method, which solve the problems that most of the existing oil supply systems are too simple in structural design, are easily damaged in the actual use process, and are easily subjected to integral failure of a transmission system once the oil supply system fails, so that the normal use of a vehicle is influenced.
The invention is realized by the following technical scheme:
a novel high-low pressure oil supply system comprises a flow divider, an oil supply device main body, a main oil transportation pressure pipe, a main oil supply module, an auxiliary oil supply module, an oil transportation module, an oil outlet module and a pressure relief module;
the main oil supply module comprises a main oil pipeline, the main oil pipeline is fixedly connected between the flow divider and the oil supply device main body, and a main oil pressure speed regulating valve is installed at one end, close to the oil supply device main body, of the main oil pipeline;
the auxiliary oil supply module comprises an auxiliary oil pipeline, the auxiliary oil pipeline is fixedly connected between the flow divider and the oil supply device main body, and an auxiliary oil pressure speed regulating valve is installed at one end, close to the oil supply device main body, of the auxiliary oil pipeline;
the oil delivery module comprises a first oil delivery pipe and a second oil delivery pipe, the two sides of the main body of the oil supply device are fixedly connected with the first oil delivery pipe and the second oil delivery pipe corresponding to the main oil supply module and the auxiliary oil supply module respectively, one ends of the first oil delivery pipe and the second oil delivery pipe, which are far away from the main oil supply module and the auxiliary oil supply module, are fixedly connected with a first three-way valve, the middle sections of the first oil delivery pipe and the second oil delivery pipe are respectively provided with a first one-way valve and a second one-way valve, the third outlet of the first three-way valve is fixedly connected with an oil delivery elbow, and one end of the oil delivery elbow, which is far away from the first three-way valve, is fixedly connected with a second three-way valve corresponding to the oil outlet module;
the oil outlet module comprises an oil outlet diverter, the top end of the oil supply device main body is fixedly connected with the oil outlet diverter, and one end, far away from the oil transportation module, of the oil outlet diverter is fixedly connected with a plurality of oil outlet pipes;
the pressure relief module comprises a pressure relief pipeline, the oil delivery elbow is far away from one end fixedly connected with pressure relief pipeline of the second three-way valve, the pressure relief pipeline is close to one end fixedly connected with pressure relief valve of the oil supply device main body, and the top fixedly connected with oil return pipe on one side of the outer wall of the oil supply device main body.
Preferably, a plurality of outlets of the flow divider are respectively and fixedly connected with the corresponding main oil transportation pressure pipe, the main oil supply module and the auxiliary oil supply module.
Preferably, the bottom end of the oil supply device main body is respectively provided with a round hole corresponding to the main oil supply module and the auxiliary oil supply module.
Preferably, the oil transportation elbow is arranged in an S-shaped structure.
Preferably, one end of the second three-way valve, which is far away from the oil delivery elbow and the pressure relief pipeline, is fixedly connected with an oil inlet of the oil outlet diverter.
Preferably, the top of one side of the outer wall of the main body of the oil supply device is provided with a through hole corresponding to the oil return pipe, and one end of the oil return pipe penetrates through the through hole and is fixedly connected with the pressure release valve.
An oil supply method of a novel high-low pressure oil supply system comprises the following specific contents:
s1, in a normal state, the main oil supply module is kept normally open, and the auxiliary oil supply module is kept normally closed; after high-pressure oil in the main oil transportation pressure pipe enters a main oil supply module through a flow divider, the oil enters a first oil transportation pipe after being subjected to pressure regulation by a main oil pressure speed regulation valve in the main oil supply module, then enters an oil transportation bent pipe through a first three-way valve, then enters an oil outlet flow divider through a second three-way valve, and finally enters a combustion chamber through a plurality of oil outlet pipes;
s2, when the main oil supply module breaks down, the main oil supply module is automatically closed, and the auxiliary oil supply module is automatically opened; after high-pressure oil in the main oil transportation pressure pipe enters the auxiliary oil supply module through the flow divider, the oil enters a second oil transportation pipe after being subjected to pressure regulation by an auxiliary oil pressure speed regulating valve in the auxiliary oil supply module, then enters the oil transportation bent pipe through the first three-way valve, finally enters the oil outlet direction divider through the second three-way valve, and then enters the combustion chamber through a plurality of oil outlet pipes;
s3, when the main oil supply module and the auxiliary oil supply module both have faults, after oil enters the oil transportation elbow, part of the oil enters the pressure release valve through the pressure release pipeline due to overhigh oil pressure, enters the oil return pipe after being released by the pressure release valve, and finally returns to the oil tank through the oil return pipe, and compared with the prior art, the invention has the following advantages and beneficial effects:
(1) according to the novel high-low pressure oil supply system, the main oil supply module and the auxiliary oil supply module are designed, so that the oil supply system is provided with two sets of oil supply oil ways, and the oil supply system can normally operate even if the main oil supply module fails, so that the normal use of a vehicle is not influenced;
(2) this kind of novel high low pressure oil feeding system through the simple pressure release module of design, can utilize the relief valve to carry out the pressure release with the high-pressure fluid in the oil transportation return bend and handle under the condition that main oil feeding module and supplementary oil feeding module all broke down, prevents that too high oil pressure from getting into out oily module.
Drawings
FIG. 1 is a front view of a novel high and low pressure oil supply system according to the present invention;
FIG. 2 is a cross-sectional structural view of a novel high-low pressure oil supply system of the present invention;
FIG. 3 is a schematic structural diagram of an oil delivery module of a novel high-low pressure oil supply system according to the present invention;
fig. 4 is a partially enlarged view of a portion a in fig. 2.
Wherein: 1. a flow divider; 2. an oil supply device main body; 3. a main oil transfer pressure pipe; 4. a main oil supply module; 401. a main oil delivery pipe; 402. a main oil pressure speed regulating valve; 5. an auxiliary oil supply module; 501. an auxiliary oil delivery pipe; 502. an auxiliary oil pressure speed regulating valve; 6. an oil delivery module; 601. a first oil delivery pipe; 602. a second oil delivery pipe; 603. a first three-way valve; 604. a first check valve; 605. a second one-way valve; 606. an oil delivery elbow; 607. a second three-way valve; 7. an oil outlet module; 701. an oil outlet diverter; 702. an oil outlet pipe; 8. a pressure relief module; 801. a pressure relief duct; 802. a pressure relief valve; 803. an oil return pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
the novel high-low pressure oil supply system of the present embodiment, as shown in fig. 1 to 4, includes a flow divider 1, an oil supply device main body 2, a main oil transportation pressure pipe 3, a main oil supply module 4, an auxiliary oil supply module 5, an oil transportation module 6, an oil outlet module 7, and a pressure relief module 8;
the main oil supply module 4 comprises a main oil pipeline 401, the main oil pipeline 401 is fixedly connected between the flow divider 1 and the oil supply device main body 2, a main oil pressure speed regulating valve 402 is installed at one end, close to the oil supply device main body 2, of the main oil pipeline 401, and the main oil pressure speed regulating valve 402 can be automatically closed when a pressure regulating fault occurs;
the auxiliary oil supply module 5 comprises an auxiliary oil pipeline 501, the auxiliary oil pipeline 501 is fixedly connected between the flow divider 1 and the oil supply device main body 2, one end of the auxiliary oil pipeline 501 close to the oil supply device main body 2 is provided with an auxiliary oil pressure speed regulating valve 502, and the auxiliary oil pressure speed regulating valve 502 can be automatically closed when the pressure regulation fails;
the oil delivery module 6 comprises a first oil delivery pipe 601 and a second oil delivery pipe 602, two sides of the oil supply device main body 2 are fixedly connected with the first oil delivery pipe 601 and the second oil delivery pipe 602 corresponding to the main oil supply module 4 and the auxiliary oil supply module 5 respectively, one ends of the first oil delivery pipe 601 and the second oil delivery pipe 602 far away from the main oil supply module 4 and the auxiliary oil supply module 5 are fixedly connected with a first three-way valve 603, the middle sections of the first oil delivery pipe 601 and the second oil delivery pipe 602 are respectively provided with a first one-way valve 604 and a second one-way valve 605, a third outlet of the first three-way valve 603 is fixedly connected with an oil delivery elbow 606, and one end of the oil delivery elbow 606 far away from the first three-way valve 603 is fixedly connected with a second three-way valve 607 corresponding to the oil outlet module 7;
the oil outlet module 7 comprises an oil outlet diverter 701, the top end of the oil supply device main body 2 is fixedly connected with the oil outlet diverter 701, and one end, far away from the oil transportation module 6, of the oil outlet diverter 701 is fixedly connected with a plurality of oil outlet pipes 702;
As shown in fig. 1, a plurality of outlets of the flow divider 1 are respectively and fixedly connected with the corresponding main oil delivery pressure pipe 3, main oil supply module 4 and auxiliary oil supply module 5, and by respectively and fixedly connecting a plurality of outlets of the flow divider 1 with the corresponding main oil delivery pressure pipe 3, main oil supply module 4 and auxiliary oil supply module 5, high-pressure oil in the main oil delivery pressure pipe 3 can respectively enter the corresponding main oil supply module 4 and auxiliary oil supply module 5 through the flow divider 1.
The bottom of the oil supply device main body 2 is respectively provided with round holes corresponding to the main oil supply module 4 and the auxiliary oil supply module 5, and the round holes corresponding to the main oil supply module 4 and the auxiliary oil supply module 5 are respectively formed in the bottom of the oil supply device main body 2, so that oil in the main oil supply module 4 and the auxiliary oil supply module 5 can enter the oil transportation module 6 through the corresponding round holes.
The oil transfer elbow 606 is arranged in an S-shaped configuration.
One end of the second three-way valve 607, which is far away from the oil transportation elbow 606 and the pressure relief pipeline 801, is fixedly connected with an oil inlet of the oil outlet diverter 701, and one end of the second three-way valve 607, which is far away from the oil transportation elbow 606 and the pressure relief pipeline 801, is fixedly connected with an oil inlet of the oil outlet diverter 701, so that oil in the oil transportation elbow 606 can enter the oil outlet diverter 701 through the second three-way valve 607 under a normal pressure state.
The top of one side of the outer wall of the oil supply device main body 2 is provided with a through hole corresponding to the oil return pipe 803, and one end of the oil return pipe 803 penetrates through the through hole and is fixedly connected with the pressure release valve 802.
An oil supply method of a novel high-low pressure oil supply system comprises the following specific contents:
s1, in a normal state, the main oil supply module 4 is kept normally open, and the auxiliary oil supply module 5 is kept normally closed; after high-pressure oil in the main oil transportation pressure pipe 3 enters the main oil supply module 4 through the flow divider 1, the oil enters the first oil transportation pipe 601 after being subjected to pressure regulation by the main oil pressure speed regulation valve 402 in the main oil supply module 4, then enters the oil transportation elbow 606 through the first three-way valve 603, enters the oil outlet flow divider 701 through the second three-way valve 607, and finally enters the combustion chamber through the oil outlet pipes 702;
s2, when the main oil supply module 4 breaks down, the main oil supply module 4 is automatically closed, and the auxiliary oil supply module 5 is automatically opened; after high-pressure oil in the main oil transportation pressure pipe 3 enters the auxiliary oil supply module 5 through the flow divider 1, the oil enters the second oil transportation pipe 602 after being subjected to pressure regulation by the auxiliary oil pressure speed regulating valve 502 in the auxiliary oil supply module 5, then enters the oil transportation elbow 606 through the first three-way valve 603, finally enters the oil outlet flow divider 701 through the second three-way valve 607, and then enters the combustion chamber through the oil outlet pipes 702;
and S3, when the main oil supply module 4 and the auxiliary oil supply module 5 both have faults, after oil enters the oil delivery elbow 606, due to overhigh oil pressure, part of the oil enters the pressure release valve 802 through the pressure release pipeline 801, enters the oil return pipe 803 after being released by the pressure release valve 802, and finally returns to the oil tank through the oil return pipe 803, as shown in FIGS. 3-4.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.
Claims (7)
1. The utility model provides a novel high-low pressure oil feeding system which characterized in that: the oil supply device comprises a flow divider (1), an oil supply device main body (2), a main oil transportation pressure pipe (3), a main oil supply module (4), an auxiliary oil supply module (5), an oil transportation module (6), an oil outlet module (7) and a pressure relief module (8);
the main oil supply module (4) comprises a main oil pipeline (401), the main oil pipeline (401) is fixedly connected between the flow divider (1) and the oil supply device main body (2), and a main oil pressure speed regulating valve (402) is installed at one end, close to the oil supply device main body (2), of the main oil pipeline (401);
the auxiliary oil supply module (5) comprises an auxiliary oil pipeline (501), the auxiliary oil pipeline (501) is fixedly connected between the flow divider (1) and the oil supply device main body (2), and one end, close to the oil supply device main body (2), of the auxiliary oil pipeline (501) is provided with an auxiliary oil pressure speed regulating valve (502);
the oil delivery module (6) comprises a first oil delivery pipe (601) and a second oil delivery pipe (602), a first oil delivery pipe (601) and a second oil delivery pipe (602) which correspond to the main oil supply module (4) and the auxiliary oil supply module (5) are respectively and fixedly connected to the middle and the west sides of the oil supply device main body (2), one ends of the first oil delivery pipe (601) and the second oil delivery pipe (602) far away from the main oil supply module (4) and the auxiliary oil supply module (5) are fixedly connected with a first three-way valve (603), the middle sections of the first oil delivery pipe (601) and the second oil delivery pipe (602) are respectively provided with a first one-way valve (604) and a second one-way valve (605), a third outlet of the first three-way valve (603) is fixedly connected with an oil delivery elbow (606), one end, far away from the first three-way valve (603), of the oil delivery elbow (606) is fixedly connected with a second three-way valve (607) corresponding to the oil outlet module (7);
the oil outlet module (7) comprises an oil outlet diverter (701), the top end of the oil supply device main body (2) is fixedly connected with the oil outlet diverter (701), and one end, far away from the oil transportation module (6), of the oil outlet diverter (701) is fixedly connected with a plurality of oil outlet pipes (702);
pressure release module (8) are including pressure release pipeline (801), the one end fixedly connected with pressure release pipeline (801) of second three-way valve (607) are kept away from in oil transportation return bend (606), one end fixedly connected with relief valve (802) that pressure release pipeline (801) are close to oil supply unit main part (2), oil return pipe (803) are returned to the top fixedly connected with of oil unit main part (2) outer wall one side.
2. The novel high-low pressure oil supply system of claim 1, characterized in that: and a plurality of outlets of the flow divider (1) are respectively and fixedly connected with the corresponding main oil transportation pressure pipe (3), the main oil supply module (4) and the auxiliary oil supply module (5).
3. The novel high-low pressure oil supply system of claim 1, characterized in that: round holes corresponding to the main oil supply module (4) and the auxiliary oil supply module (5) are respectively formed in the bottom end of the oil supply device main body (2).
4. The novel high-low pressure oil supply system of claim 1, characterized in that: the oil delivery elbow (606) is arranged in an S-shaped structure.
5. The novel high-low pressure oil supply system of claim 1, characterized in that: one end of the second three-way valve (607), which is far away from the oil delivery elbow (606) and the pressure relief pipeline (801), is fixedly connected with an oil inlet of the oil outlet diverter (701).
6. The novel high-low pressure oil supply system of claim 1, characterized in that: the top of one side of the outer wall of the oil supply device main body (2) is provided with a through hole corresponding to the oil return pipe (803), and one end of the oil return pipe (803) penetrates through the through hole and is fixedly connected with the pressure release valve (802).
7. An oil supply method of a novel high-low pressure oil supply system is realized based on the novel high-low pressure oil supply system as claimed in any one of claims 1 to 6, and is characterized by comprising the following specific contents:
s1, in a normal state, the main oil supply module (4) is kept normally open, and the auxiliary oil supply module (5) is kept normally closed; after high-pressure oil in the main oil transportation pressure pipe (3) enters the main oil supply module (4) through the flow divider (1), the oil enters the first oil transportation pipe (601) after being subjected to pressure regulation by the main oil pressure speed regulating valve (402) in the main oil supply module (4), then enters the oil transportation elbow (606) through the first three-way valve (603), enters the oil outlet flow divider (701) through the second three-way valve (607), and finally enters the combustion chamber through the oil outlet pipes (702);
s2, when the main oil supply module (4) breaks down, the main oil supply module (4) can be automatically closed, and the auxiliary oil supply module (5) is automatically opened; after high-pressure oil in the main oil transportation pressure pipe (3) enters the auxiliary oil supply module (5) through the flow divider (1), the oil enters the second oil transportation pipe (602) after being subjected to pressure regulation by the auxiliary oil pressure speed regulation valve (502) in the auxiliary oil supply module (5), then enters the oil transportation elbow (606) through the first three-way valve (603), finally enters the oil outlet branch device (701) through the second three-way valve (607), and then enters the combustion chamber through the oil outlet pipes (702);
s3, when the main oil supply module (4) and the auxiliary oil supply module (5) both break down, after oil enters the oil delivery elbow (606), due to the fact that oil pressure is too high, part of the oil can enter the pressure release valve (802) through the pressure release pipeline (801), enters the oil return pipe (803) after pressure release of the pressure release valve (802), and finally returns to the oil tank through the oil return pipe (803).
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| CN202110513501.XA CN113202671A (en) | 2021-05-11 | 2021-05-11 | Novel high-low pressure oil supply system and oil supply method |
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| CN111648874A (en) * | 2020-06-30 | 2020-09-11 | 无锡威孚高科技集团股份有限公司 | An electronically controlled fuel system with multiple redundant functions |
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