CN104121051A - Oil way device of automobile engine variable timing system - Google Patents
Oil way device of automobile engine variable timing system Download PDFInfo
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- CN104121051A CN104121051A CN201310149648.0A CN201310149648A CN104121051A CN 104121051 A CN104121051 A CN 104121051A CN 201310149648 A CN201310149648 A CN 201310149648A CN 104121051 A CN104121051 A CN 104121051A
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- oil
- valve body
- blind hole
- installing blind
- motor car
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Abstract
The invention relates to an oil way device of an automobile engine variable timing system. The device comprises an installation blind hole formed in a cylinder cover of a power generator or a cam shaft cover, and the installation blind hole is perpendicular to and communicated with an oil outlet channel and an oil inlet channel of the automobile engine variable timing system. The device is characterized in that a cylindrical valve is arranged in the installation blind hole, a spiral spring is arranged between one end of the valve and the bottom of the installation blind hole, an oil outlet annular groove is formed in the portion close to one end of the valve, the oil outlet annular groove is aligned to or staggered with the oil outlet channel, a sealing ring is arranged on the portion close to the other end of the valve, the sealing ring is matched with a middle hole wall of the installation blind hole, the other end of the valve is opposite to a plug connected with the opening of the installation blind hole, and an oil pressure cavity communicated with the oil inlet channel is formed. By means of the oil way device, the situation that lubrication between a rotor and a stator of a phaser of the automobile engine variable timing system is not enough due to long-time halt can be improved, and the abnormal sound problem is solved.
Description
Technical field
The present invention relates to motor car engine VVT parts, be specifically related to a kind of oil route controller of motor car engine VVT.
Background technique
On market, increasing motor has used VVT now.Existing VVT forms (seeing Fig. 1 and Fig. 2) by phase discriminator, oil pocket, OCV Oil Control Valve and oil duct.When engine shutdown; the oil pocket 3 in advance of phase discriminator and the machine oil in hysteresis oil pocket 4 are back to oil pan through OCV Oil Control Valve by oil duct; make the rotor 2 of phase discriminator inside and the poor lubrication between stator 1; and can not effectively control rocking of rotor 2; particularly after shutting down the long period; lack of lubrication causes dry friction between rotor 2 and stator 1, rocks aggravation, produces abnormal sound.Therefore, the oil circuit device in existing VVT need to be improved.
Summary of the invention
The oil route controller that the object of this invention is to provide a kind of motor car engine VVT; the phase discriminator that improves motor car engine VVT is the situation of lack of lubrication between rotor and stator due to long-time shutdown, thereby solves the abnormal sound problem that produces.
This oil route controller is located between oil input channel and oil road, can control oil circuit and open and close.When motor is when working, this device is opened oil road, and machine oil is normally back to oil pan; When shutting down, this device is closed oil road, and machine oil cannot be back to oil pan, so be stored in phase discriminator.This oil route controller, owing to being immersed in for a long time in machine oil, should have the features such as high temperature resistant, resistance to machine oil corrosion and easy installation.
The oil route controller of a kind of motor car engine VVT of the present invention, comprise and be located at the cylinder cap of generator or the installing blind on camshaft cover, the oil road of this installing blind and motor car engine VVT is vertical with oil input channel and communicate, it is characterized in that: a cylindrical valve body is located in described installing blind, between one end of this valve body and the bottom of described installing blind, be provided with helical spring; On the position near described valve body one end, be provided with out oil ring groove, this goes out oil ring groove and aligns/misplace with described oil road; Near on the position of the described valve body the other end, be provided with seal ring, sealing circle coordinates with the middle part hole wall of described installing blind, and the other end of this valve body is relative with the obstruction being connected on described installing blind oral area, form the oil pressure chamber communicating with described oil input channel.
The oil route controller of described a kind of motor car engine VVT, described in it, one end of valve body is provided with spring seat blind hole, the bottom of described helical spring one end and this spring seat blind hole near, the bottom of the described helical spring the other end and described installing blind near.When engine operation, helical spring maximum elastic force should be less than the engine oil pressure in oil duct, and when shutting down, helical spring elastic force should be able to make valve body get back to initial position.
The oil route controller of described a kind of motor car engine VVT, described in it, the other end of valve body is provided with chamfering.
The oil route controller of described a kind of motor car engine VVT, is being provided with seal ring annular groove near on the position of the described valve body the other end, and described seal ring coordinates with sealing ring groove.Seal ring is arranged in the annular groove on valve body, is in order to prevent that the machine oil in oil input channel and oil road from leaking mutually, causes variable valve actuating mechanism operation irregularity.
The present invention has realized opening and closing automatically of oil road mechanically, has improved the phase discriminator of motor car engine VVT because long-time shutdown makes the situation of lack of lubrication between rotor and stator, thereby separated, certainly produces abnormal sound problem.
Accompanying drawing explanation
The structural representation of the existing VVT of Fig. 1;
Fig. 2 is the phase discriminator internal structure schematic diagram of existing VVT;
Fig. 3 is valve body structure schematic diagram of the present invention;
Working state schematic representation of the present invention when Fig. 4 is engine shutdown;
Working state schematic representation of the present invention when Fig. 5 is engine start.
In figure: 1-stator, 2-rotor, 3-shifts to an earlier date oil pocket, 4-hysteresis oil pocket, 5-oil input channel, 6-oil road, 7-installing blind, 8-stops up, 9-valve body, 10-goes out oil ring groove, 11-spring seat blind hole, 12-chamfering, 13-seal ring annular groove, 14-helical spring, 15-seal ring.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Referring to Fig. 3, Fig. 4 and Fig. 5, the oil route controller of described a kind of motor car engine VVT, comprise the installing blind 7 on the cylinder cap that is located at generator, the oil road 5 of this installing blind and motor car engine VVT is vertical with oil input channel 6 and communicate, its innovative point is: a cylindrical valve body 9 is located in described installing blind 7, between one end of this valve body 9 and the bottom of described installing blind 7, is provided with helical spring 14; On the position near described valve body one end, be provided with out oil ring groove 10, this goes out oil ring groove and aligns/misplace with described oil road 5; Near on the position of the described valve body the other end, be provided with seal ring 15, sealing circle coordinates with the middle part hole wall of described installing blind 7, and the other end of this valve body 9 is relative with the obstruction 8 being connected on described installing blind 7 oral areas, form the oil pressure chamber communicating with described oil input channel 6.
Further, one end of described valve body 9 is provided with spring seat blind hole 11, the bottom of one end of described helical spring 14 and this spring seat blind hole near, the bottom of the other end of described helical spring 14 and described installing blind 7 near.
Further, the other end of described valve body 9 is provided with chamfering 12, so that the machine oil in oil input channel flows into oil pressure chamber.This chamfering and oil input channel, obstruction have formed oil-feed buffer area jointly, and while making VVT work, thereby oil input channel oil pressure can form at this savings the power of helical spring compression direction to valve body.
Further, near on the position of the described valve body the other end, be provided with seal ring annular groove 13, described seal ring 15 coordinates with sealing ring groove.Seal ring is arranged in the annular groove on valve body, is in order to prevent that the machine oil in oil input channel and oil road from leaking mutually, causes variable valve actuating mechanism operation irregularity.
Referring to Fig. 3; when engine shutdown; because cylinder inner engine oil pressure is that engine oil pressure zero and that phase discriminator inner engine oil potential energy produces is much smaller than the cracking pressure of oil circuit oil route controller; be the elastic force that engine oil pressure cannot overcome helical spring 14; valve body 9 is pushed away to the left side; valve body is in initial position, and oil input channel 5 and oil road 6 are blocked, and machine oil cannot flow back to cylinder cap.
When motor is started working, referring to Fig. 4, because oil input channel 5 is interior, start to set up oil pressure, engine oil pressure is greater than the cracking pressure of oil route controller, be the elastic force that engine oil pressure is enough to overcome helical spring 14, valve body 9 is pushed away to the left side, make the oil ring groove 10 that goes out on valve body aim at oil road 6, now machine oil can normally flow back to cylinder cap, and variable valve actuating mechanism is normally worked.
When engine stop work, the interior oil pressure of oil input channel 5 disappears, and valve body, due to the elastic force effect of helical spring 14, is got back to original state oil input channel 5 and oil road 6 are blocked, and machine oil cannot pass back into cylinder cap like this, is stored in phase discriminator.By which, to have avoided owing to shutting down after the long period, lack of lubrication causes dry friction between rotor and stator and produces abnormal sound.
If installing blind 7 is located on the camshaft cover of generator, forms another embodiment.
This oil route controller is not unique, and similarly oil circuit controlling method,, by the method for oil input channel engine oil pressure control oil road switch, all should belong in the scope of the invention.
Claims (4)
1. the oil route controller of a motor car engine VVT, comprise the cylinder cap or the installing blind on camshaft cover (7) that are located at generator, the oil road (5) of this installing blind and motor car engine VVT is vertical with oil input channel (6) and communicate, it is characterized in that: a cylindrical valve body (9) is located in described installing blind (7), between one end of this valve body (9) and the bottom of described installing blind (7), be provided with helical spring (14); On the position near described valve body one end, be provided with out oil ring groove (10), this goes out oil ring groove and aligns/misplace with described oil road (5); Near on the position of the described valve body the other end, be provided with seal ring (15), sealing circle coordinates with the middle part hole wall of described installing blind (7), and the other end of this valve body (9) is relative with the obstruction (8) being connected on described installing blind (7) oral area, form the oil pressure chamber communicating with described oil input channel (6).
2. the oil route controller of a kind of motor car engine VVT according to claim 1, it is characterized in that: one end of described valve body (9) is provided with spring seat blind hole (11), one end of described helical spring (14) and the bottom of this spring seat blind hole near, the bottom of the other end of described helical spring (14) and described installing blind (7) near.
3. the oil route controller of a kind of motor car engine VVT according to claim 1 and 2, is characterized in that: the other end of described valve body (9) is provided with chamfering (12).
4. the oil route controller of a kind of motor car engine VVT according to claim 1 and 2, it is characterized in that: near on the position of the described valve body the other end, be provided with seal ring annular groove (13), described seal ring (15) coordinates with sealing ring groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310149648.0A CN104121051B (en) | 2013-04-26 | 2013-04-26 | A kind of oil circuit device of motor car engine VVT |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310149648.0A CN104121051B (en) | 2013-04-26 | 2013-04-26 | A kind of oil circuit device of motor car engine VVT |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104121051A true CN104121051A (en) | 2014-10-29 |
| CN104121051B CN104121051B (en) | 2016-03-30 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310149648.0A Active CN104121051B (en) | 2013-04-26 | 2013-04-26 | A kind of oil circuit device of motor car engine VVT |
Country Status (1)
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5331866A (en) * | 1991-06-28 | 1994-07-26 | Volkswagen Ag | Camshaft arrangement having a deactivatable cam |
| JP2000045726A (en) * | 1998-08-04 | 2000-02-15 | Mitsubishi Electric Corp | Hydraulic valve timing adjusting device |
| JP2007138744A (en) * | 2005-11-15 | 2007-06-07 | Denso Corp | Valve timing adjusting device |
| CN101040102A (en) * | 2004-10-07 | 2007-09-19 | 谢夫勒两合公司 | Device for modifying the timing of gas exchange valves in an internal combustion engine |
| DE102006042206A1 (en) * | 2006-09-08 | 2008-03-27 | Bayerische Motoren Werke Ag | Control valve for e.g. cam shaft adjusting device of combustion engine of vehicle, has piston arranged in housing, and radial and axial boreholes staying in connection with piston section that has small diameter than another section |
| CN102245865A (en) * | 2008-12-10 | 2011-11-16 | 谢夫勒科技有限两合公司 | Control valve for a device for variably adjusting the control times of gas-exchange valves of an internal combustion engine |
-
2013
- 2013-04-26 CN CN201310149648.0A patent/CN104121051B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5331866A (en) * | 1991-06-28 | 1994-07-26 | Volkswagen Ag | Camshaft arrangement having a deactivatable cam |
| JP2000045726A (en) * | 1998-08-04 | 2000-02-15 | Mitsubishi Electric Corp | Hydraulic valve timing adjusting device |
| CN101040102A (en) * | 2004-10-07 | 2007-09-19 | 谢夫勒两合公司 | Device for modifying the timing of gas exchange valves in an internal combustion engine |
| EP1914395A1 (en) * | 2004-10-07 | 2008-04-23 | Schaeffler KG | Method to control an apparatus for variable timing of intake- and exhaust valves in a combustion engine |
| JP2007138744A (en) * | 2005-11-15 | 2007-06-07 | Denso Corp | Valve timing adjusting device |
| DE102006042206A1 (en) * | 2006-09-08 | 2008-03-27 | Bayerische Motoren Werke Ag | Control valve for e.g. cam shaft adjusting device of combustion engine of vehicle, has piston arranged in housing, and radial and axial boreholes staying in connection with piston section that has small diameter than another section |
| CN102245865A (en) * | 2008-12-10 | 2011-11-16 | 谢夫勒科技有限两合公司 | Control valve for a device for variably adjusting the control times of gas-exchange valves of an internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104121051B (en) | 2016-03-30 |
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