CN108223187B - Rear gear chamber with oil-gas separation structure - Google Patents
Rear gear chamber with oil-gas separation structure Download PDFInfo
- Publication number
- CN108223187B CN108223187B CN201810224047.4A CN201810224047A CN108223187B CN 108223187 B CN108223187 B CN 108223187B CN 201810224047 A CN201810224047 A CN 201810224047A CN 108223187 B CN108223187 B CN 108223187B
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- Prior art keywords
- oil
- separation structure
- gas separation
- gear chamber
- gas
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F7/00—Casings, e.g. crankcases or frames
- F02F7/0065—Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
-
- 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
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention provides a rear gear chamber with an oil-gas separation structure, which comprises a rear gear chamber body, an oil-gas separation structure, an oil-gas inlet pipe and an air outlet joint; the oil-gas separation structure is arranged at the upper part of the rear gear chamber body; the oil-gas separation structure comprises uneven reinforcing ribs and oil holes; the oil gas inlet pipe and the gas outlet joint are connected to the oil gas separation structure. The rear gear chamber with the oil-gas separation structure has good oil-gas separation effect, achieves the purposes of maintaining the pressure in the crankcase and reducing the consumption of lubricating oil, and can replace an independent breather structure of a diesel engine, thereby reducing the cost of the diesel engine and being popularized and used in similar products.
Description
Technical Field
The invention relates to the field of machinery, in particular to a rear gear chamber with an oil-gas separation structure in the engine industry.
Background
When the diesel engine works, a small amount of high-temperature and high-pressure gas enters the crankcase from the combustion chamber through a gap between the cylinder wall and the piston ring, so that the temperature and the pressure in the crankcase are increased. Under the action of high temperature, the lubricating oil can be volatilized continuously, so that the consumption of the lubricating oil is further increased. There is a need for an oil and gas separation mechanism that maintains crankcase pressure to reduce oil consumption.
Disclosure of Invention
The invention aims to solve the technical problems of separating oil from gas, maintaining the pressure in a crankcase and reducing the consumption of lubricating oil.
The invention adopts the following technical scheme to solve the technical problems:
a rear gear chamber with an oil-gas separation structure comprises a rear gear chamber body, an oil-gas separation structure, an oil-gas inlet pipe and an air outlet joint;
the oil-gas separation structure is arranged at the upper part of the rear gear chamber body;
the oil-gas separation structure comprises uneven reinforcing ribs and oil holes;
the oil gas inlet pipe and the gas outlet joint are connected to the oil gas separation structure.
Further, the uneven reinforcing ribs are at least one L-shaped reinforcing rib.
Further, the oil gas inlet pipe is vertically arranged on the rear gear chamber body, and a cylinder head cover is connected above the oil gas inlet pipe.
Further, an oil-gas outlet rubber pipe is arranged at one end of the outlet joint, which is not connected with the oil-gas separation structure.
Further, an oil pan is provided at the bottom of the rear gear chamber.
Further, the rear gear chamber body comprises a shell, a high-pressure oil pump gear, a cam shaft timing gear and a crank shaft timing gear, wherein the high-pressure oil pump gear and the crank shaft timing gear are respectively arranged on two sides below the cam shaft timing gear.
Further, two hydraulic pump mounting interfaces are arranged on the rear gear chamber body.
Further, a flywheel housing is arranged on the side face of the rear gear chamber body.
Further, the rear gear chamber body and the flywheel housing are mounted on the diesel engine body through a flange at the rear end of the crankshaft.
The application method of the rear gear chamber with the oil-gas separation structure comprises the following steps: the gas is collected and then enters from the oil gas inlet pipe, the oil gas is settled by the self gravity of the engine oil after entering the oil gas separation structure, the oil gas is separated, then the gas is discharged from the gas outlet joint, and the oil is discharged through the oil hole.
The invention has the advantages that:
the invention has simple structure and good oil-gas separation effect, achieves the purposes of maintaining the pressure in the crankcase and reducing the consumption of lubricating oil, and can replace an independent breather structure of a diesel engine, thereby reducing the cost of the diesel engine and being popularized and used in similar products.
Drawings
FIG. 1 is a cross-sectional view of a rear gear chamber with an oil-gas separation structure according to an embodiment of the present invention;
FIG. 2 is a schematic view of a rear gear chamber with oil-gas separation structure mounted on a diesel engine body according to an embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1-2, the rear gear chamber with the oil-gas separation structure comprises a rear gear chamber body 1, an oil-gas separation structure 2, an oil-gas inlet pipe 3 and an air outlet joint 4;
the oil-gas separation structure 2 is arranged at the upper part of the rear gear chamber body 1;
the section of the oil-gas separation structure 2 is a right triangle, two right-angle sides are respectively in the horizontal direction and the vertical direction, the oil-gas separation structure 2 comprises a transverse L-shaped reinforcing rib 21 and an oil hole 22, the L-shaped reinforcing rib 21 is mutually perpendicular to the vertical right-angle side of the oil-gas separation structure 2, the L-shaped reinforcing rib 21 enables the inside of the oil-gas separation structure 2 to form a labyrinth-like structure, oil and gas are separated, and the oil hole 22 is arranged at the bottommost end of the right triangle formed by the oil-gas separation structure 2;
the oil-gas inlet pipe 3 is vertically arranged above the horizontal right-angle side of the oil-gas separation structure 2; the air outlet joint 4 is connected above the horizontal right angle of the oil-gas separation structure 2 and is positioned on the other side of the oil-gas inlet pipe 3.
The oil gas inlet pipe 3 is vertically arranged on the rear gear chamber body 1, and a cylinder head cover 5 is connected above the oil gas inlet pipe 3.
The cylinder head cover 5 is a place where engine oil and gas are collected, and the collected oil and gas enters the oil-gas separation structure 2 through the oil-gas inlet pipe 3.
The one end that the gas outlet joint 4 did not connect with the oil-gas separation structure 2 is provided with the oil-gas outlet rubber tube 6, and the oil-gas outlet rubber tube 6 is reverse inverted L type structure rubber tube, and the long tube tail end connection of vertical direction is on back gear room body 1, and gas is discharged through the oil-gas outlet rubber tube 6 through the gas outlet joint 4.
The bottom of the rear gear chamber is provided with an oil pan 7, and the oil pan 7 is a place where engine oil is stored and collected.
The rear gear chamber 1 includes a housing 11, a high-pressure oil pump gear 12, a camshaft timing gear 13, a crankshaft timing gear 14, and two hydraulic pump mounting interfaces 15, the high-pressure oil pump gear 12 and the crankshaft timing gear 14 being respectively engaged with the camshaft timing gear 13 and disposed on both sides below the camshaft timing gear 13.
The side of the rear gear chamber body 1 is provided with a flywheel housing 8.
The rear gear chamber body 1 and the flywheel housing 8 are mounted on the diesel engine body 10 through a crankshaft rear end flange 9, the crankshaft rear end flange 9 is located at the center of the flywheel housing 8, the flywheel housing 8 plays roles in whole vehicle mounting and docking, and the rear gear chamber body 1, the flywheel housing 8 and the diesel engine body 10 are mounted together to enable the rear gear chamber body 1 to form an independent oil-gas separation structure.
The working steps of the invention are as follows:
the gas is collected and then enters from the oil-gas inlet pipe 3, the oil and gas enter the oil-gas separation structure 2 and then are settled by the gravity of the engine oil, so that the oil and gas are separated, then the gas is discharged from the gas outlet joint 4, and the oil is discharged through the oil hole 22.
The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (7)
1. The rear gear chamber with the oil-gas separation structure is characterized by comprising a rear gear chamber body, the oil-gas separation structure, an oil-gas inlet pipe and an air outlet joint;
the oil-gas separation structure is arranged at the upper part of the rear gear chamber body;
the oil-gas separation structure comprises uneven reinforcing ribs and oil holes; the uneven reinforcing ribs are at least one L-shaped reinforcing rib, and the oil hole is arranged at the bottommost end of the oil-gas separation structure;
the oil gas inlet pipe and the air outlet joint are connected to the oil gas separation structure, the oil gas inlet pipe is vertically arranged on the rear gear chamber body, and a cylinder head cover is connected above the oil gas inlet pipe;
the application method of the rear gear chamber with the oil-gas separation structure comprises the following steps: the gas is collected and then enters from the oil gas inlet pipe, the oil gas is settled by the self gravity of the engine oil after entering the oil gas separation structure, the oil gas is separated, then the gas is discharged from the gas outlet joint, and the oil is discharged through the oil hole.
2. The rear gear chamber with an oil-gas separation structure according to claim 1, wherein an oil-gas outlet rubber pipe is arranged at one end of the outlet joint which is not connected with the oil-gas separation structure.
3. The rear gear chamber with an oil-gas separation structure according to claim 1, wherein an oil pan is provided at a bottom of the rear gear chamber.
4. The rear gear chamber with an oil-gas separation structure according to claim 1, wherein the rear gear chamber body comprises a housing, a high-pressure oil pump gear, a cam shaft timing gear and a crank shaft timing gear, and the high-pressure oil pump gear and the crank shaft timing gear are respectively arranged on two sides below the cam shaft timing gear.
5. The rear gear chamber with an oil-gas separation structure according to claim 1, wherein two hydraulic pump mounting interfaces are provided on the rear gear chamber body.
6. The rear gear chamber with an oil-gas separation structure according to claim 1, wherein a flywheel housing is provided on a side surface of the rear gear chamber.
7. The rear gear chamber with oil-gas separation structure according to claim 6, wherein the rear gear chamber and the flywheel housing are mounted on the diesel engine body through a crankshaft rear end flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810224047.4A CN108223187B (en) | 2018-03-19 | 2018-03-19 | Rear gear chamber with oil-gas separation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810224047.4A CN108223187B (en) | 2018-03-19 | 2018-03-19 | Rear gear chamber with oil-gas separation structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108223187A CN108223187A (en) | 2018-06-29 |
| CN108223187B true CN108223187B (en) | 2023-09-26 |
Family
ID=62659753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810224047.4A Active CN108223187B (en) | 2018-03-19 | 2018-03-19 | Rear gear chamber with oil-gas separation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108223187B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983638B (en) * | 2021-02-18 | 2022-04-01 | 第一拖拉机股份有限公司 | Non-road diesel engine body |
| CN114046193A (en) * | 2021-09-29 | 2022-02-15 | 广西玉柴机器股份有限公司 | Structure for returning oil to flywheel shell through separator |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000297620A (en) * | 1999-04-14 | 2000-10-24 | Suzuki Motor Corp | Lubrication structure for vertical engine |
| CN2858963Y (en) * | 2005-11-16 | 2007-01-17 | 东风汽车有限公司 | Crankcase ventilation device |
| CN101963110A (en) * | 2010-10-31 | 2011-02-02 | 无锡开普动力有限公司 | Gear chamber structure of diesel engine |
| CN102720585A (en) * | 2011-11-17 | 2012-10-10 | 东风朝阳柴油机有限责任公司 | Timing gear chamber wheel train of engine |
| CN102777233A (en) * | 2012-08-21 | 2012-11-14 | 山东时风（集团）有限责任公司 | Vertical type single cylinder diesel |
| CN203394634U (en) * | 2013-07-12 | 2014-01-15 | 昆明云内动力股份有限公司 | Timing transmission device of diesel engine for automobile |
| CN104100370A (en) * | 2014-07-04 | 2014-10-15 | 广东德力柴油机有限公司 | Vertical type single-cylinder diesel engine with balance shaft device |
| CN204691899U (en) * | 2015-04-18 | 2015-10-07 | 潍柴动力股份有限公司 | A kind of diesel engine train of gearings |
| CN106351763A (en) * | 2016-08-25 | 2017-01-25 | 合肥江淮朝柴动力有限公司 | Highly integrated gear chamber of diesel engine |
| CN207945021U (en) * | 2018-03-19 | 2018-10-09 | 安徽全柴动力股份有限公司 | A kind of backgear room with gas oil separation structure |
-
2018
- 2018-03-19 CN CN201810224047.4A patent/CN108223187B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000297620A (en) * | 1999-04-14 | 2000-10-24 | Suzuki Motor Corp | Lubrication structure for vertical engine |
| CN2858963Y (en) * | 2005-11-16 | 2007-01-17 | 东风汽车有限公司 | Crankcase ventilation device |
| CN101963110A (en) * | 2010-10-31 | 2011-02-02 | 无锡开普动力有限公司 | Gear chamber structure of diesel engine |
| CN102720585A (en) * | 2011-11-17 | 2012-10-10 | 东风朝阳柴油机有限责任公司 | Timing gear chamber wheel train of engine |
| CN102777233A (en) * | 2012-08-21 | 2012-11-14 | 山东时风（集团）有限责任公司 | Vertical type single cylinder diesel |
| CN203394634U (en) * | 2013-07-12 | 2014-01-15 | 昆明云内动力股份有限公司 | Timing transmission device of diesel engine for automobile |
| CN104100370A (en) * | 2014-07-04 | 2014-10-15 | 广东德力柴油机有限公司 | Vertical type single-cylinder diesel engine with balance shaft device |
| CN204691899U (en) * | 2015-04-18 | 2015-10-07 | 潍柴动力股份有限公司 | A kind of diesel engine train of gearings |
| CN106351763A (en) * | 2016-08-25 | 2017-01-25 | 合肥江淮朝柴动力有限公司 | Highly integrated gear chamber of diesel engine |
| CN207945021U (en) * | 2018-03-19 | 2018-10-09 | 安徽全柴动力股份有限公司 | A kind of backgear room with gas oil separation structure |
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| Publication number | Publication date |
|---|---|
| CN108223187A (en) | 2018-06-29 |
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