CN103775166B - The oil channel structures of electromotor - Google Patents
The oil channel structures of electromotor Download PDFInfo
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- CN103775166B CN103775166B CN201210415014.0A CN201210415014A CN103775166B CN 103775166 B CN103775166 B CN 103775166B CN 201210415014 A CN201210415014 A CN 201210415014A CN 103775166 B CN103775166 B CN 103775166B
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Abstract
The invention discloses the oil channel structures of a kind of electromotor, including control and the lubricant passage way of cylinder head working connection, camshaft lubrication oil circuit, turbocharger lubricating oil road, VVT gear oil circuit control and hydraulic tappet and roller rocker arms assembly, VVT gear oil circuit control includes the first VVT gear oil circuit control being arranged in camshaft cover, the second VVT gear oil circuit control being arranged in valve mechanism cover；Being provided with oil pocket on the camshaft cover faying face with cylinder head, oil pocket controls lubricant passage way entrance with the first VVT gear oil circuit control entrance, the outlet of cylinder head working connection and hydraulic tappet with roller rocker arms assembly respectively and is connected；Turbocharger lubricating oil road is connected with cylinder head working connection.The present invention can reduce manufacture difficulty and the cost of cylinder head, it is to avoid influencing each other between each oil circuit, improves dynamic property, discharge and NVH during engine cold-start.1-->
Description
Technical field
The invention belongs to automobile engine, be specifically related to the oil channel structures of a kind of electromotor.
Background technology
In order to tackle Abgasgesetz and the energy crisis of increasingly stringent, the small-sized strengthening of electromotor is modern car
With electromotor important development direction.In order to obtain the same of good driving dynamics performance
Time reduce fuel oil consumption and discharge, small-sized reinforcing stimulus is adopted while reducing engine displacement
With exhaust turbine pressuring technology, VVT, hydraulic tappet and roller rocker arms assembly
Realize power and the lifting of low speed torque, reduce discharge and improve NVH.
Electromotor uses exhaust turbine pressuring technology, VVT, hydraulic tappet and roller
During rocker arm assembly, need to arrange that corresponding high-pressure oil duct is to realize turbocharger on the engine
, VVT gear, the action control of hydraulic tappet and roller rocker arms assembly and mechanism's profit
Sliding.These high-pressure oil ducts are typically integrated in cylinder head, are connected with cylinder head main oil gallery, but
It is that this scheme there is problems in that
(1) lubricant passage way of integrated exhaust gas turbocharger, VVT gear in cylinder head
Oil circuit control, the control of hydraulic tappet and roller rocker arms assembly and lubricant passage way, and cam
Spindle oil road, the structure making cylinder head is extremely complex, add cylinder head manufacture difficulty and
Cost；
(2) in the control of hydraulic tappet and roller rocker arms assembly and lubricant passage way, camshaft lubrication oil circuit
Flow of lubrication bigger relative to the oil circuit control of VVT gear, oil pressure ratio is relatively
Little, in such cylinder head main oil gallery, substantial amounts of lubricating oil flows into hydraulic tappet and roller rocker arms assembly
Control and lubricant passage way, camshaft lubrication oil circuit, cause the control of VVT gear
There is bigger fluctuation with the rotating speed difference of electromotor in the oil pressure in oil circuit, affects changeable air valve
The normal work of timing mechanism；
(3), after electromotor is shut down, the lubricating oil in each oil circuit of cylinder head all can flow back under gravity
Oil sump, when electromotor is again started up, the oil circuit control of cylinder head VVT gear
, cannot set up rapidly in hydraulic tappet and the control of roller rocker arms assembly and lubricant passage way satisfied
The oil pressure required, causes VVT gear, hydraulic tappet and the roller rocker arms cannot be normal
Work, makes the dynamic property of electromotor, discharge and NVH be deteriorated.
Summary of the invention
It is an object of the invention to provide the oil channel structures of a kind of electromotor, the manufacture that can reduce cylinder head is difficult
Degree and
Cost, it is to avoid influencing each other between each oil circuit, dynamic property when improving engine cold-start,
Discharge and NVH.
The oil channel structures of electromotor of the present invention, including cylinder head working connection, camshaft lubrication oil circuit
, turbocharger lubricating oil road, VVT gear oil circuit control and hydraulic tappet and rolling
The control of sub-rocker arm assembly and lubricant passage way, cylinder head working connection, camshaft lubrication oil circuit, whirlpool
Take turns supercharger lubricant passage way and hydraulic tappet and the control of roller rocker arms assembly and lubricant passage way is arranged
In cylinder head, cylinder cap working connection connects with cylinder block main oil gallery,
Described VVT gear oil circuit control includes that be arranged in camshaft cover first can changing the flow of QI-blood
Door timing mechanism oil circuit control, the second VVT gear control being arranged in valve mechanism cover
Liquefaction road, and first, second VVT gear oil circuit control, be connected, second can
Air valve variation timing mechanism oil circuit control and the VVT gear profit being arranged in valve mechanism cover
Lubricating oil control valve installing hole connects；
Being provided with oil pocket on the camshaft cover faying face with cylinder head, this oil pocket respectively can changing the flow of QI-blood with first
Door timing mechanism oil circuit control entrance, the outlet of cylinder head working connection and hydraulic tappet and roller
Control and the lubricant passage way entrance of rocker arm assembly are connected；
Described turbocharger lubricating oil road is connected with cylinder head working connection；
After lubricating oil in cylinder head working connection enters oil pocket, road first VVT gear
Oil circuit control enters the second VVT gear oil circuit control, and another road leads to hydraulic tappet
Control with roller rocker arms assembly and lubricant passage way.
The control of described camshaft lubrication oil circuit and hydraulic tappet and roller rocker arms assembly and lubricant passage way
Entrance be arranged in cylinder head top.It can be avoided that the lubricating oil that electromotor is shut down in rear oil duct exists
Action of gravity dirty oil return drain pan, due to camshaft lubrication oil circuit, hydraulic tappet and roller rocker arms
Control and the lubricant passage way internal memory of assembly contain a certain amount of machine oil, convex when engine cold-start
Axle oil road, hydraulic tappet meeting interior with the control of roller rocker arms assembly and lubricant passage way are rapidly
Set up oil pressure, camshaft lubrication and valve assembly, make hydraulic tappet normally work with roller rocker arms
。
At the first VVT gear oil circuit control built with check valve.After electromotor is shut down, single
The lubricating oil in VVT gear oil circuit control can be stoped to flow back to oil sump to valve, when sending out
When motivation is again started up, can set up rapidly in VVT gear oil circuit control and can drive
The oil pressure of dynamic VVT gear running.
The bottom of described oil pocket is provided with oil groove, and this oil groove is by oil pocket and hydraulic tappet and roller rocker arms assembly
Control
And lubricant passage way is connected.
Described hydraulic tappet and the control of roller rocker arms assembly and lubricant passage way are by entrance oil circuit, laterally oil
Road, exhaust side oil circuit and air inlet side oil circuit composition, divide on exhaust side oil circuit and air inlet side oil circuit
Not being disposed with hydraulic tappet installing hole, lubricating oil flows into entrance oil circuit from oil pocket through oil groove, then
Enter horizontal oil circuit, finally enter exhaust side oil circuit and air inlet side oil circuit.
Described cylinder head working connection is followed successively by straight oil circuit and oblique oil circuit, directly oil from cylinder head top-to-bottom
Road is connected with described oil pocket, and the stage casing of oblique oil circuit is connected with described turbocharger lubricating oil road
Logical, the bottom of oblique oil circuit is the entrance connection of cylinder head working connection.
Being formed around seal groove at oil pocket, this seal groove is built with O RunddichtringO, when camshaft cover is installed
After in cylinder head, O RunddichtringO is prevented from the oil seepage in oil pocket.
In the junction of camshaft cover Yu valve mechanism cover, sealing gasket is installed.Just prevent the first changeable air valve
Time mechanism's oil circuit control and the junction of the second VVT gear oil circuit control lubricate
Oil seepage, affects the oil pressure in VVT gear oil circuit control.
The invention have the advantages that
(1) VVT gear oil circuit control is arranged in camshaft, camshaft cover and cylinder head
On cover, the lubricating oil control valve of VVT gear is arranged in valve mechanism cover, and each is convex
The control of the camshaft grease way at axle journal and hydraulic tappet and roller rocker arms assembly and lubrication
The connection of oil circuit, thus by part camshaft lubricant passage way and hydraulic tappet and roller rocker arms assembly
Control and lubricant passage way integrated, simplify the oil circuit in cylinder head, thus reduce cylinder head
Manufacture difficulty and cost；
(2) lubricating oil of cylinder head working connection is redistributed to VVT gear after first flowing into oil pocket
The control of oil circuit control and hydraulic tappet and roller rocker arms assembly and lubricant passage way, due in oil pocket
Oil pressure more stable, so camshaft lubrication oil circuit, hydraulic tappet and roller rocker arms assembly
Controlling and lubricant passage way does not interferes with the oil pressure in VVT gear oil circuit control, making can
Air valve variation timing mechanism can stable operation.Arrange oil groove bottom oil pocket, serve restriction flow
Increase the effect of oil pressure, be equivalent to pressure limiting valve.
(3) arrange unidirectional due to the VVT gear oil circuit control porch on camshaft cover
Valve, after electromotor is shut down, check valve can stop the profit in VVT gear oil circuit control
Lubricating oil flows back to oil sump, when electromotor is again started up, and VVT gear oil circuit control
The oil pressure that VVT gear can be driven to operate is set up rapidly in interior meeting；It addition, cam
Spindle oil road, hydraulic tappet are arranged with the control of roller rocker arms assembly and the entrance of lubricant passage way
In top surface of cylinder cover, due to camshaft lubrication oil circuit, hydraulic tappet
Control and lubricant passage way internal memory with roller rocker arms assembly contain a certain amount of machine oil, work as electromotor
The control of camshaft lubrication oil circuit during cold start-up, hydraulic tappet and roller rocker arms assembly and lubricating oil
Oil pressure, camshaft lubrication and valve assembly can be set up rapidly in road, make hydraulic tappet shake with roller
Arm normally works；
In sum, the present invention can reduce manufacture difficulty and the cost of cylinder head, it is to avoid each oil circuit it
Between influence each other, improve dynamic property, discharge and NVH during engine cold-start.
Accompanying drawing explanation
Fig. 1 is cylinder head working connection transverse cross sectional schematic diagram；
Fig. 2 is oil pocket partial schematic diagram；
Fig. 3 is hydraulic tappet and the control of roller rocker arms assembly and lubricant passage way cut-away illustration；
Fig. 4 is that cylinder head working connection arranges generalized section；
Wherein, 10, cylinder head, 11, straight oil circuit, 12, oblique oil circuit, 13, turbocharger lubrication
Oil circuit, 14, entrance oil circuit, 14-1, camshaft lubrication oil circuit and hydraulic tappet shake with roller
The control of arm component and the entrance of lubricant passage way, 15, horizontal oil circuit, 16, exhaust side oil circuit,
17, air inlet side oil circuit, 18, hydraulic tappet installing hole, 20, O RunddichtringO, 30, camshaft
Lid, the 31, first VVT gear oil circuit control, 32, oil pocket, 33, oil groove, 34
, seal groove, 40, cylinder head cover sealing gasket, 50, check valve, 60, sealing gasket, 70, gas
Cylinder head cover, 71, VVT gear lubricating oil control valve installing hole, 72, second is variable
Valve timing mechanism oil circuit control, 80, tapered plug.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings:
Seeing shown in Fig. 1 to Fig. 4, the oil channel structures of this electromotor, including cylinder head working connection, cam
Spindle oil road, turbocharger lubricating oil road 13 and VVT gear oil circuit control and
The control of hydraulic tappet and roller rocker arms assembly and lubricant passage way, cylinder head working connection and cylinder body master
Oil duct is connected.
Cylinder head working connection, camshaft lubrication oil circuit, turbocharger lubricating oil road 13 and hydraulic tappet
Control and lubricant passage way with roller rocker arms assembly are arranged in cylinder head 10, and are moistened by camshaft
The control of lubricating oil road and hydraulic tappet and roller rocker arms assembly and the entrance 14-1 cloth of lubricant passage way
Put at cylinder head 10 top, it is possible to camshaft lubrication oil circuit and hydraulic pressure after avoiding electromotor to shut down
Lubricating oil in the control of tappet and roller rocker arms assembly and lubricant passage way flows back under gravity
Oil sump, due to control and the profit of camshaft lubrication oil circuit, hydraulic tappet and roller rocker arms assembly
Lubricating oil road internal memory contains a certain amount of machine oil, when engine cold-start camshaft lubrication oil circuit,
Oil pressure can be set up rapidly, profit in the control of hydraulic tappet and roller rocker arms assembly and lubricant passage way
Sliding camshaft and valve assembly, makes hydraulic tappet normally work with roller rocker arms.
VVT gear oil circuit control includes the first VVT gear oil circuit control 31 He
Second VVT gear oil circuit control 72, the first VVT gear oil circuit control
31 be arranged in camshaft cover 30, the second VVT gear oil circuit control 72 is arranged in gas
In cylinder head cover 70, valve mechanism cover 70 has VVT gear lubricating oil control valve peace
Dress hole 71, first, second VVT gear oil circuit control 31,72 is connected, and second
VVT gear oil circuit control 72 and the VVT being arranged in valve mechanism cover 70
Lubrication oil control valve installing hole 71 connects；Reach to simplify the oil circuit in cylinder head 10, thus
Reduce manufacture difficulty and the cost of cylinder head 10.
Being provided with oil pocket 32 on camshaft cover 30 faying face with cylinder head 10, this oil pocket 32 is respectively with the
One VVT gear oil circuit control 31 entrance, the outlet of cylinder head working connection and hydraulic pressure
Tappet is connected with control and the lubricant passage way entrance of roller rocker arms assembly；Make cylinder head working connection
Lubricating oil first flow into oil pocket 32 after be redistributed to VVT gear oil circuit control and hydraulic pressure
The control of tappet and roller rocker arms assembly and lubricant passage way；Owing to the oil pressure ratio in oil pocket 32 is more steady
Fixed, so the control of camshaft lubrication oil circuit, hydraulic tappet and roller rocker arms assembly and lubricating oil
Road does not interferes with the oil pressure in VVT gear oil circuit control, makes VVT machine
Structure can stable operation.
Cylinder head working connection is followed successively by straight oil circuit 11 and oblique oil circuit 12, oil pocket from cylinder head top-to-bottom
32 are connected with the straight oil circuit 11 of cylinder head working connection, turbocharger lubricating oil road 13 and cylinder
The oblique oil circuit 12 of lid working connection is connected, and described cylinder head working connection is from cylinder head top-to-bottom
Being followed successively by straight oil circuit 11 and oblique oil circuit 12, straight oil circuit 11 is connected with described oil pocket 32, oblique oil circuit
The stage casing of 12 is connected with turbocharger lubricating oil road 13, and the bottom of oblique oil circuit 12 is cylinder head
The entrance connection of working connection.
Avoid the impact on turbocharger lubricating oil road 13 of remaining oil circuit, it is ensured that have enough lubricating oil
Entrance makes turbocharger normally work, and turbocharger lubricating oil road 13 and oil pocket 32 distance
Farther out, it also avoid the turbocharger lubricating oil road 13 impact on other oil circuits.
See Fig. 1, at the first VVT gear oil circuit control 31, check valve 50 is installed.Start
After machine is shut down, check valve 50 can stop the lubricating oil stream in VVT gear oil circuit control
Oil return drain pan, when electromotor is again started up, can be fast in VVT gear oil circuit control
Run-up erects the oil pressure that VVT gear can be driven to operate.At camshaft cover 30 and gas
The junction of cylinder head cover 70 is provided with sealing gasket 60, prevents the first VVT gear from controlling
Oil circuit 31 and the second VVT gear oil circuit control
There is oil seepage in the junction of 72, affects the oil in VVT gear oil circuit control
Pressure, is provided with cylinder head cover sealing gasket 40 in the junction of valve mechanism cover 70 and cylinder head 10.
See Fig. 2, offer oil groove 33 in the bottom of oil pocket 32, when camshaft cover 30 is installed to cylinder head
Time on 10, this oil groove 33 is by the control of oil pocket 32 and hydraulic tappet and roller rocker arms assembly and lubrication
Oil circuit is connected, and makes the lubricating oil in oil pocket 32 flow into and leads to hydraulic tappet and roller rocker arms assembly
Control and lubricant passage way.Be formed around seal groove 34 at oil pocket 32, this seal groove 34 built with
O RunddichtringO 20.After camshaft cover 30 is installed in cylinder head 10, O RunddichtringO 20 can
Prevent the oil seepage in oil pocket 32.
Seeing Fig. 3 and Fig. 4, hydraulic tappet is oily by entrance with the control of roller rocker arms assembly and lubricant passage way
Road 14, horizontal oil circuit 15, exhaust side oil circuit 16 and air inlet side oil circuit 17 form, each oil circuit port
Sealed by tapered plug 80, exhaust side oil circuit 16 and air inlet side oil circuit 17 are respectively disposed with liquid
Pressure tappet installing hole 18.Due to the control of hydraulic tappet and roller rocker arms assembly and lubricant passage way
Entrance is arranged in the top of cylinder head 10, has one-way flow effect, and rear oil duct shut down by electromotor
Interior lubricating oil will not flow back in oil sump.
During work, after the lubricating oil in cylinder head working connection enters oil pocket 32, a road first can changing the flow of QI-blood
Door timing mechanism oil circuit control 31 enters the second VVT gear oil circuit control 72, another
Road flows into entrance oil circuit 14 through oil groove 33, subsequently into horizontal oil circuit 15, finally enters exhaust side
Oil circuit 16 and air inlet side oil circuit 17.
Claims (8)
1. the oil channel structures of an electromotor, control and lubricant passage way including cylinder head working connection, camshaft lubrication oil circuit, turbocharger lubricating oil road (13), VVT gear oil circuit control and hydraulic tappet and roller rocker arms assembly, cylinder head working connection, camshaft lubrication oil circuit, turbocharger lubricating oil road (13) and hydraulic tappet are arranged in cylinder head (10) with control and the lubricant passage way of roller rocker arms assembly, cylinder head working connection connects with cylinder block main oil gallery, it is characterised in that:
Described VVT gear oil circuit control includes the first VVT gear oil circuit control (31) being arranged in camshaft cover (30), the second VVT gear oil circuit control (72) being arranged in valve mechanism cover (70), and first, second VVT gear oil circuit control (31,72) be connected, the second VVT gear oil circuit control (72) connects with VVT gear lubricating oil control valve installing hole (71) being arranged in valve mechanism cover (70)；
Being provided with oil pocket (32) on the camshaft cover (30) faying face with cylinder head (10), this oil pocket (32) is connected with control and the lubricant passage way entrance of roller rocker arms assembly with the first VVT gear oil circuit control (31) entrance, the outlet of cylinder head working connection and hydraulic tappet respectively；
Described turbocharger lubricating oil road (13) is connected with cylinder head working connection；
After lubricating oil in cylinder head working connection enters oil pocket (32), one tunnel the first VVT gear oil circuit control (31) enters the second VVT gear oil circuit control (72), and another road leads to hydraulic tappet and the control of roller rocker arms assembly and lubricant passage way.
The oil channel structures of electromotor the most according to claim 1, it is characterised in that: described camshaft lubrication oil circuit and hydraulic tappet are arranged in cylinder head (10) top with the control of roller rocker arms assembly and the entrance (14-1) of lubricant passage way.
The oil channel structures of electromotor the most according to claim 1, it is characterised in that: at the first VVT gear oil circuit control (31) built with check valve (50).
4. according to the oil channel structures of the arbitrary described electromotor of claims 1 to 3, it is characterized in that: the bottom of described oil pocket (32) is provided with oil groove (33), oil pocket (32) is connected with control and the lubricant passage way of roller rocker arms assembly by this oil groove (33) with hydraulic tappet.
The oil channel structures of electromotor the most according to claim 4, it is characterized in that: described hydraulic tappet and the control of roller rocker arms assembly and lubricant passage way are by entrance oil circuit (14), laterally oil circuit (15), exhaust side oil circuit (16) and air inlet side oil circuit (17) composition, exhaust side oil circuit (16) and air inlet side oil circuit (17) are respectively disposed with hydraulic tappet installing hole (18), lubricating oil flows into entrance oil circuit (14) from oil pocket (32) through oil groove (33), subsequently into horizontal oil circuit (15), finally enter exhaust side oil circuit (16) and air inlet side oil circuit (17).
The oil channel structures of electromotor the most according to claim 4, it is characterized in that: described cylinder head working connection is followed successively by straight oil circuit (11) and oblique oil circuit (12) from cylinder head top-to-bottom, straight oil circuit (11) is connected with described oil pocket (32), tiltedly the stage casing of oil circuit (12) is connected with described turbocharger lubricating oil road (13), and the bottom of oblique oil circuit (12) connects with the entrance of cylinder head working connection.
7. according to the oil channel structures of electromotor described in claim 5 or 6, it is characterized in that: be formed around seal groove (34) at oil pocket (32), this seal groove (34) is built with O RunddichtringO (20), after camshaft cover (30) is installed in cylinder head (10), O RunddichtringO (20) can prevent the oil seepage in oil pocket (32).
8. according to the oil channel structures of electromotor described in claim 5 or 6, it is characterised in that: in the junction of camshaft cover (30) Yu valve mechanism cover (70), sealing gasket (60) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210415014.0A CN103775166B (en) | 2012-10-25 | 2012-10-25 | The oil channel structures of electromotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210415014.0A CN103775166B (en) | 2012-10-25 | 2012-10-25 | The oil channel structures of electromotor |
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| CN103775166A CN103775166A (en) | 2014-05-07 |
| CN103775166B true CN103775166B (en) | 2016-08-10 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10443458B2 (en) * | 2014-05-14 | 2019-10-15 | Ford Global Technologies, Llc | Engine assembly with passageway for reducing oil leakage |
| CN109899126A (en) * | 2017-12-11 | 2019-06-18 | 宝沃汽车（中国）有限公司 | A kind of engine and vehicle |
| CN111219225A (en) * | 2018-11-26 | 2020-06-02 | 宝沃汽车（中国）有限公司 | Oil circuit structure of engine, engine and vehicle |
| CN110080850A (en) * | 2019-03-28 | 2019-08-02 | 江苏三能动力总成有限公司 | A kind of continuously variable valve lift Rocker arm assembly |
| CN110700914A (en) * | 2019-10-11 | 2020-01-17 | 东风汽车集团有限公司 | DVVT circulating oil way system and gasoline engine |
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| JP2000337122A (en) * | 1999-05-26 | 2000-12-05 | Daihatsu Motor Co Ltd | Oil pressure supplying device for valve timing control type internal combustion engine |
| US6823825B1 (en) * | 2002-06-29 | 2004-11-30 | Hyundai Motor Company | Oil supply structure for an engine cylinder head |
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| CN102493888A (en) * | 2011-11-28 | 2012-06-13 | 重庆长安汽车股份有限公司 | Oil circuit structure of VVT (variable valve timing) engine cylinder cover system |
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Patent Citations (5)
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|---|---|---|---|---|
| JP2000337122A (en) * | 1999-05-26 | 2000-12-05 | Daihatsu Motor Co Ltd | Oil pressure supplying device for valve timing control type internal combustion engine |
| US6823825B1 (en) * | 2002-06-29 | 2004-11-30 | Hyundai Motor Company | Oil supply structure for an engine cylinder head |
| CN201486673U (en) * | 2009-07-03 | 2010-05-26 | 奇瑞汽车股份有限公司 | Cylinder cover of VVT automotive engine |
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