CN103775166A - Oil way structure of engine - Google Patents
Oil way structure of engine Download PDFInfo
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- CN103775166A CN103775166A CN201210415014.0A CN201210415014A CN103775166A CN 103775166 A CN103775166 A CN 103775166A CN 201210415014 A CN201210415014 A CN 201210415014A CN 103775166 A CN103775166 A CN 103775166A
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Abstract
The invention discloses an oil way structure of an engine. The oil way structure comprises a cylinder cover main oil way, a cam shaft lubrication oil way, a turbosupercharger lubrication oil way, a variable valve timing mechanism control oil way and a control and lubrication oil way of a hydraulic tappet and a roller rocker assembly, wherein the variable valve timing mechanism control oil way comprises a first variable valve timing mechanism control oil way arranged in a cam shaft cover and a second variable valve timing mechanism control oil way arranged in a cylinder head cover; an oil cavity is formed in the combination face of the cam shaft cover and a cylinder head and is respectively communicated with an inlet of the first variable valve timing mechanism control oil way, an outlet of the cylinder cover main oil way, and an inlet of the control and lubrication oil way of the hydraulic tappet and the roller rocker assembly; the turbosupercharger lubrication oil way is communicated with the cylinder cover main oil way. According to the oil way structure of the engine, the manufacturing difficulty and the manufacturing cost of the cylinder head can be reduced, mutual influences between all the oil ways can be avoided, and the dynamic property, the emission and the NVH generated when the engine is started can be improved.
Description
Technical field
The invention belongs to motor car engine, be specifically related to a kind of oil channel structures of motor.
Background technique
In order to tackle Abgasgesetz and the energy crisis of increasingly stringent, the small-sized strengthening of motor is an important development direction of Modern Vehicle Engine.In order to reduce fuel consume and discharge in obtaining good driving dynamics performance, small-sized reinforcing stimulus adopts exhaust turbine pressuring technology, Variable Valve Timing, hydraulic tappet and roller rocker arms assembly to realize the lifting of power and low speed torque, reduce discharge and improve NVH in reducing engine displacement.
When motor adopts exhaust turbine pressuring technology, Variable Valve Timing, hydraulic tappet and roller rocker arms assembly, need on motor, arrange that corresponding high-pressure oil duct realizes action control and the mechanism of turbocharger, Variable Valve Time gear, hydraulic tappet and roller rocker arms assembly and lubricate.These high-pressure oil ducts are generally integrated in cylinder head, be connected, but this scheme exist following problem with cylinder head main oil gallery:
(1) control and the lubricating oil path of the oil circuit control of the lubricating oil path of integrated exhaust gas turbocharger, Variable Valve Time gear, hydraulic tappet and roller rocker arms assembly in cylinder head, and camshaft lubrication oil circuit, make the structure of cylinder head very complicated, increased manufacture difficulty and the cost of cylinder head;
(2) flow of lubrication in the control of hydraulic tappet and roller rocker arms assembly and lubricating oil path, camshaft lubrication oil circuit is larger with respect to the oil circuit control of Variable Valve Time gear, oil pressure is smaller, the control of the interior a large amount of lubricant oil inflow hydraulic tappet of cylinder head main oil gallery and roller rocker arms assembly and lubricating oil path, camshaft lubrication oil circuit like this, cause oil pressure in the oil circuit control of Variable Valve Time gear, with the rotating speed of motor is different, larger fluctuation occurs, affect the normal work of Variable Valve Time gear;
(3) after engine shutdown; lubricant oil in the each oil circuit of cylinder head all can be at the dirty oil return drain pan of Action of Gravity Field; in the time that motor starts again; in the control of oil circuit control, hydraulic tappet and the roller rocker arms assembly of cylinder head Variable Valve Time gear and lubricating oil path, cannot set up rapidly the oil pressure meeting the demands; cause Variable Valve Time gear, hydraulic tappet and roller rocker arms normally to work, make power character, discharge and the NVH variation of motor.
Summary of the invention
The object of this invention is to provide a kind of oil channel structures of motor, can reduce manufacture difficulty and the cost of cylinder head, avoid influencing each other between each oil circuit, power character, discharge and NVH while improving engine cold-start.
The oil channel structures of motor of the present invention, comprise control and the lubricating oil path of cylinder head working connection, camshaft lubrication oil circuit, turbocharger lubricating oil road, Variable Valve Time gear oil circuit control and hydraulic tappet and roller rocker arms assembly, control and the lubricating oil path of cylinder head working connection, camshaft lubrication oil circuit, turbocharger lubricating oil road and hydraulic tappet and roller rocker arms assembly are arranged in cylinder head, cylinder cap working connection is communicated with cylinder block main oil gallery
Described Variable Valve Time gear oil circuit control comprises the first Variable Valve Time gear oil circuit control of being arranged in camshaft cover, is arranged in the second Variable Valve Time gear oil circuit control in valve mechanism cover, and first, second Variable Valve Time gear oil circuit control, be connected, the second Variable Valve Time gear oil circuit control is communicated with the Variable Valve Time gear lubricating oil control valve mounting hole being arranged in valve mechanism cover;
On the junction plane of camshaft cover and cylinder head, be provided with oil pocket, this oil pocket is connected with control and the lubricating oil path entrance of roller rocker arms assembly with outlet and the hydraulic tappet of the first Variable Valve Time gear oil circuit control entrance, cylinder head working connection respectively;
Described turbocharger lubricating oil road is connected with cylinder head working connection;
Lubricant oil in cylinder head working connection enters after oil pocket, and a road first Variable Valve Time gear oil circuit control enters the second Variable Valve Time gear oil circuit control, and another road leads to control and the lubricating oil path of hydraulic tappet and roller rocker arms assembly.
Described camshaft lubrication oil circuit and hydraulic tappet and the control of roller rocker arms assembly and the entrance of lubricating oil path are arranged in cylinder head top.Can avoid lubricant oil in engine shutdown rear oil duct at the dirty oil return drain pan of Action of Gravity Field; owing to storing a certain amount of machine oil in the control of camshaft lubrication oil circuit, hydraulic tappet and roller rocker arms assembly and lubricating oil path; in the time of engine cold-start, in the control of camshaft lubrication oil circuit, hydraulic tappet and roller rocker arms assembly and lubricating oil path, can set up rapidly oil pressure; camshaft lubrication and valve assembly, normally work hydraulic tappet and roller rocker arms.
In the first Variable Valve Time gear oil circuit control, one-way valve is housed.After engine shutdown; one-way valve can stop the lubricant oil in Variable Valve Time gear oil circuit control to flow back to oil sump; in the time that motor starts again, in Variable Valve Time gear oil circuit control, can set up rapidly the oil pressure that can drive Variable Valve Time gear running.
The bottom of described oil pocket is provided with oil groove, and this oil groove is connected with hydraulic tappet oil pocket with control and the lubricating oil path of roller rocker arms assembly.
The control of described hydraulic tappet and roller rocker arms assembly and lubricating oil path are made up of entrance oil circuit, horizontal oil circuit, exhaust side oil circuit and air inlet side oil circuit, on exhaust side oil circuit and air inlet side oil circuit, be furnished with respectively hydraulic tappet mounting hole, lubricant 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 from cylinder head top to bottom, straight oil circuit is connected with described oil pocket, and tiltedly the stage casing of oil circuit is connected with described turbocharger lubricating oil road, and the bottom of oblique oil circuit is that the entrance of cylinder head working connection is communicated with.
Be provided with seal groove in oil pocket surrounding, O RunddichtringO is housed in sealing groove, after camshaft cover is installed in cylinder head, O RunddichtringO can prevent the oil seepage in oil pocket.
Junction in camshaft cover and valve mechanism cover is provided with sealing gasket.There is oil seepage in the joint that prevents the first Variable Valve Time gear oil circuit control and the second Variable Valve Time gear oil circuit control, affects the oil pressure in Variable Valve Time gear oil circuit control.
The present invention has the following advantages:
(1) Variable Valve Time gear oil circuit control is arranged in camshaft, camshaft cover and valve mechanism cover, the lubricating oil control valve of Variable Valve Time gear is arranged in valve mechanism cover, the camshaft grease way at each camshaft bearing journal place and hydraulic tappet and the control of roller rocker arms assembly and being communicated with of lubricating oil path, thereby by integrated to control and the lubricating oil path of part camshaft lubrication oil circuit and hydraulic tappet and roller rocker arms assembly, simplify the oil circuit in cylinder head, thereby reduced manufacture difficulty and the cost of cylinder head;
(2) lubricant oil of cylinder head working connection first flows into the control and the lubricating oil path that are redistributed to Variable Valve Time gear oil circuit control and hydraulic tappet and roller rocker arms assembly after oil pocket, because the oil pressure in oil pocket is more stable, so the control of camshaft lubrication oil circuit, hydraulic tappet and roller rocker arms assembly and lubricating oil path can not affect the oil pressure in Variable Valve Time gear oil circuit control, make the Variable Valve Time gear can stable operation.Oil groove is arranged in oil pocket bottom, has played the effect that limited flow increases oil pressure, is equivalent to pressure-limit valve.
(3) because one-way valve is arranged in the Variable Valve Time gear oil circuit control ingress on camshaft cover, after engine shutdown, one-way valve can stop the lubricant oil in Variable Valve Time gear oil circuit control to flow back to oil sump, in the time that motor starts again, in Variable Valve Time gear oil circuit control, can set up rapidly the oil pressure that can drive Variable Valve Time gear running; In addition, camshaft lubrication oil circuit, hydraulic tappet and the control of roller rocker arms assembly and the entrance of lubricating oil path are arranged in cylinder head end face, owing to storing a certain amount of machine oil in the control of camshaft lubrication oil circuit, hydraulic tappet and roller rocker arms assembly and lubricating oil path, in the time of engine cold-start, in the control of camshaft lubrication oil circuit, hydraulic tappet and roller rocker arms assembly and lubricating oil path, can set up rapidly oil pressure, camshaft lubrication and valve assembly, normally work hydraulic tappet and roller rocker arms;
In sum, the present invention can reduce manufacture difficulty and the cost of cylinder head, avoids influencing each other between each oil circuit, power character, discharge and NVH while improving 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 control and the lubricating oil path cut-away illustration of hydraulic tappet and roller rocker arms assembly;
Fig. 4 is that cylinder head working connection is arranged generalized section;
Wherein, 10, cylinder head, 11, straight oil circuit, 12, tiltedly oil circuit, 13, turbocharger lubricating oil road, 14, entrance oil circuit, 14-1, the control of camshaft lubrication oil circuit and hydraulic tappet and roller rocker arms assembly and the entrance of lubricating oil path, 15, laterally oil circuit, 16, exhaust side oil circuit, 17, air inlet side oil circuit, 18, hydraulic tappet mounting hole, 20, O RunddichtringO, 30, camshaft cover, 31, the first Variable Valve Time gear oil circuit control, 32, oil pocket, 33, oil groove, 34, seal groove, 40, cylinder head cover sealing gasket, 50, one-way valve, 60, sealing gasket, 70, valve mechanism cover, 71, Variable Valve Time gear lubricating oil control valve mounting hole, 72, the second Variable Valve Time gear oil circuit control, 80, tapered plug.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
Referring to shown in Fig. 1 to Fig. 4, the oil channel structures of this motor, comprise control and the lubricating oil path of cylinder head working connection, camshaft lubrication oil circuit, turbocharger lubricating oil road 13 and Variable Valve Time gear oil circuit control and hydraulic tappet and roller rocker arms assembly, cylinder head working connection is connected with cylinder body main oil gallery.
Cylinder head working connection, camshaft lubrication oil circuit, the control of turbocharger lubricating oil road 13 and hydraulic tappet and roller rocker arms assembly and lubricating oil path are arranged in cylinder head 10, and camshaft lubrication oil circuit and the control of hydraulic tappet and roller rocker arms assembly and the entrance 14-1 of lubricating oil path are arranged in to cylinder head 10 tops, can avoid lubricant oil in control and the lubricating oil path of camshaft lubrication oil circuit after engine shutdown and hydraulic tappet and roller rocker arms assembly at the dirty oil return drain pan of Action of Gravity Field, due to camshaft lubrication oil circuit, in the control of hydraulic tappet and roller rocker arms assembly and lubricating oil path, store a certain amount of machine oil, camshaft lubrication oil circuit in the time of engine cold-start, in the control of hydraulic tappet and roller rocker arms assembly and lubricating oil path, can set up rapidly oil pressure, camshaft lubrication and valve assembly, hydraulic tappet and roller rocker arms are normally worked.
Variable Valve Time gear oil circuit control comprises the first Variable Valve Time gear oil circuit control 31 and the second Variable Valve Time gear oil circuit control 72, the first Variable Valve Time gear oil circuit control 31 is arranged in camshaft cover 30, the second Variable Valve Time gear oil circuit control 72 is arranged in valve mechanism cover 70, in valve mechanism cover 70, have Variable Valve Time gear lubricating oil control valve mounting hole 71, first, the second Variable Valve Time gear oil circuit control 31, 72 are connected, the second Variable Valve Time gear oil circuit control 72 is communicated with the Variable Valve Time gear lubricating oil control valve mounting hole 71 being arranged in valve mechanism cover 70, reach the oil circuit of simplifying in cylinder head 10, thereby reduce manufacture difficulty and the cost of cylinder head 10.
On the junction plane of camshaft cover 30 and cylinder head 10, be provided with oil pocket 32, this oil pocket 32 is connected with control and the lubricating oil path entrance of roller rocker arms assembly with outlet and the hydraulic tappet of the first Variable Valve Time gear oil circuit control 31 entrances, cylinder head working connection respectively; Make the lubricant oil of cylinder head working connection first flow into the control and the lubricating oil path that are redistributed to Variable Valve Time gear oil circuit control and hydraulic tappet and roller rocker arms assembly after oil pocket 32; Because the oil pressure in oil pocket 32 is more stable, so the control of camshaft lubrication oil circuit, hydraulic tappet and roller rocker arms assembly and lubricating oil path can not affect the oil pressure in Variable Valve Time gear oil circuit control, make the Variable Valve Time gear can stable operation.
Cylinder head working connection is followed successively by straight oil circuit 11 and oblique oil circuit 12 from cylinder head top to bottom, oil pocket 32 is connected with the straight oil circuit 11 of cylinder head working connection, turbocharger lubricating oil road 13 is connected with the oblique oil circuit 12 of cylinder head working connection, 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 turbocharger lubricating oil road 13, and tiltedly the bottom of oil circuit 12 is the entrance connection of cylinder head working connection.
Avoid the impact of all the other oil circuits on turbocharger lubricating oil road 13, ensuring enough lubricant oil enters turbosupercharger is normally worked, and turbocharger lubricating oil road 13 is distant with oil pocket 32, also avoid the impact of turbocharger lubricating oil road 13 on other oil circuits.
Referring to Fig. 1, at the first Variable Valve Time gear oil circuit control 31, one-way valve 50 is installed.After engine shutdown; one-way valve 50 can stop the lubricant oil in Variable Valve Time gear oil circuit control to flow back to oil sump; in the time that motor starts again, in Variable Valve Time gear oil circuit control, can set up rapidly the oil pressure that can drive Variable Valve Time gear running.In camshaft cover 30 and the junction of valve mechanism cover 70, sealing gasket 60 is installed, there is oil seepage in the joint that prevents the first Variable Valve Time gear oil circuit control 31 and the second Variable Valve Time gear oil circuit control 72, affect the oil pressure in Variable Valve Time gear oil circuit control, be provided with cylinder head cover sealing gasket 40 in the junction of valve mechanism cover 70 and cylinder head 10.
Referring to Fig. 2, offer oil groove 33 in the bottom of oil pocket 32, in the time that camshaft cover 30 is installed in cylinder head 10, this oil groove 33 is connected with hydraulic tappet oil pocket 32 with control and the lubricating oil path of roller rocker arms assembly, make the lubricant oil in oil pocket 32 flow into the control and the lubricating oil path that lead to hydraulic tappet and roller rocker arms assembly.Be provided with seal groove 34 in oil pocket 32 surroundings, O RunddichtringO 20 is housed in sealing groove 34.After camshaft cover 30 is installed in cylinder head 10, O RunddichtringO 20 can prevent the oil seepage in oil pocket 32.
Referring to Fig. 3 and Fig. 4, the control of hydraulic tappet and roller rocker arms assembly and lubricating oil path are made up of entrance oil circuit 14, horizontal oil circuit 15, exhaust side oil circuit 16 and air inlet side oil circuit 17, each oil circuit port is sealed by tapered plug 80, on exhaust side oil circuit 16 and air inlet side oil circuit 17, is furnished with respectively hydraulic tappet mounting hole 18.Because hydraulic tappet and the control of roller rocker arms assembly and the entrance of lubricating oil path are arranged in the top of cylinder head 10, there is one-way flow effect, the lubricant oil in engine shutdown rear oil duct can not flow back in oil sump.
When work, lubricant oil in cylinder head working connection enters after oil pocket 32, one tunnel the first Variable Valve Time gear oil circuit control 31 enters the second Variable Valve Time gear oil circuit control 72, another road flows into entrance oil circuit 14 through oil groove 33, then enter horizontal oil circuit 15, finally enter exhaust side oil circuit 16 and air inlet side oil circuit 17.
Claims (8)
1. the oil channel structures of a motor, comprise control and the lubricating oil path of cylinder head working connection, camshaft lubrication oil circuit, turbocharger lubricating oil road (13), Variable Valve Time gear oil circuit control and hydraulic tappet and roller rocker arms assembly, the control of cylinder head working connection, camshaft lubrication oil circuit, turbocharger lubricating oil road (13) and hydraulic tappet and roller rocker arms assembly and lubricating oil path are arranged in cylinder head (10), cylinder head working connection is communicated with cylinder block main oil gallery, it is characterized in that:
Described Variable Valve Time gear oil circuit control comprises the first Variable Valve Time gear oil circuit control (31) of being arranged in camshaft cover (30), is arranged in the second Variable Valve Time gear oil circuit control (72) in valve mechanism cover (70), and first, second Variable Valve Time gear oil circuit control (31,72) is connected, the second Variable Valve Time gear oil circuit control (72) is communicated with the Variable Valve Time gear lubricating oil control valve mounting hole (71) being arranged in valve mechanism cover (70);
On the junction plane of camshaft cover (30) and cylinder head (10), be provided with oil pocket (32), this oil pocket (32) is connected with control and the lubricating oil path entrance of roller rocker arms assembly with outlet and the hydraulic tappet of the first Variable Valve Time gear oil circuit control (31) entrance, cylinder head working connection respectively;
Described turbocharger lubricating oil road (13) is connected with cylinder head working connection;
Lubricant oil in cylinder head working connection enters after oil pocket (32), one tunnel the first Variable Valve Time gear oil circuit control (31) enters the second Variable Valve Time gear oil circuit control (72), and another road leads to control and the lubricating oil path of hydraulic tappet and roller rocker arms assembly.
2. the oil channel structures of motor according to claim 1, is characterized in that: described camshaft lubrication oil circuit and hydraulic tappet and the control of roller rocker arms assembly and the entrance of lubricating oil path (14-1) are arranged in cylinder head (10) top.
3. the oil channel structures of motor according to claim 1, is characterized in that: in the first Variable Valve Time gear oil circuit control (31), one-way valve (50) is housed.
4. according to the oil channel structures of the arbitrary described motor of claims 1 to 3, it is characterized in that: the bottom of described oil pocket (32) is provided with oil groove (33), this oil groove (33) is connected with hydraulic tappet oil pocket (32) with control and the lubricating oil path of roller rocker arms assembly.
5. the oil channel structures of motor according to claim 4, it is characterized in that: the control of described hydraulic tappet and roller rocker arms assembly and lubricating oil path are by entrance oil circuit (14), laterally oil circuit (15), exhaust side oil circuit (16) and air inlet side oil circuit (17) composition, on exhaust side oil circuit (16) and air inlet side oil circuit 17, be furnished with respectively hydraulic tappet mounting hole (18), lubricant oil flows into entrance oil circuit (14) from oil pocket (32) through oil groove (33), then enter horizontal oil circuit (15), finally enter exhaust side oil circuit (16) and air inlet side oil circuit (17).
6. the oil channel structures of motor 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 tiltedly the bottom of oil circuit (12) is the entrance connection of cylinder head working connection.
7. according to the oil channel structures of motor described in claim 5 or 6, it is characterized in that: be provided with seal groove (34) in oil pocket (32) surrounding, O RunddichtringO (20) is housed in sealing groove (34), 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 motor described in claim 5 or 6, it is characterized in that: in camshaft cover (30) and the junction of 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 |
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| CN201210415014.0A CN103775166B (en) | 2012-10-25 | 2012-10-25 | The oil channel structures of electromotor |
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| CN103775166A true CN103775166A (en) | 2014-05-07 |
| CN103775166B CN103775166B (en) | 2016-08-10 |
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| CN201210415014.0A Active CN103775166B (en) | 2012-10-25 | 2012-10-25 | The oil channel structures of electromotor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105089734A (en) * | 2014-05-14 | 2015-11-25 | 福特环球技术公司 | 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 |
| 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 |
| 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 |
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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 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089734A (en) * | 2014-05-14 | 2015-11-25 | 福特环球技术公司 | Engine Assembly With Passageway For Reducing Oil Leakage |
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| 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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