CN101363335B - Timing chain-driven and engine oil pump drive system - Google Patents
Timing chain-driven and engine oil pump drive system Download PDFInfo
- Publication number
- CN101363335B CN101363335B CN 200810195834 CN200810195834A CN101363335B CN 101363335 B CN101363335 B CN 101363335B CN 200810195834 CN200810195834 CN 200810195834 CN 200810195834 A CN200810195834 A CN 200810195834A CN 101363335 B CN101363335 B CN 101363335B
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- oil pump
- timing chain
- chain
- sprocket
- drive system
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- 239000010705 motor oil Substances 0.000 title claims description 14
- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 239000003921 oil Substances 0.000 claims description 34
- 238000009434 installation Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims 1
- 230000008676 import Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The invention relates to a timing chain transmission and oil pump driving system, comprising a two-row dentate crankshaft sprocket, wherein, one row is provided with a timing chain which is wound around an admission sprocket and an exhaust sprocket, while the other row is equipped with an oil pump chain which is wound around an oil pump sprocket, and the oil pump sprocket is positioned just under the crankshaft sprocket. By being provided with the timing chain and the oil pump chain, the two-row dentate crankshaft sprocket can respectively drive the admission sprocket, the exhaust sprocket and the oil pump sprocket; as chain transmission is adopted to replace the traditional belt transmission, the replacement of a belt can be avoided; by arranging the oil pump sprocket just under the crankshaft sprocket, the space of an engine can be saved.
Description
Technical field
The present invention relates to the motor car engine transmission field, especially a kind of timing chain transmission and engine oil pump drive system for dual overhead camshaft engine V.
Background technique
The oil pump of the lubrication system of present engine is axial arranged along crankshaft sprocket, this mode motor is seemed volume is larger; For dual overhead camshaft engine V, when belt transmission was adopted in the timing transmission, it was dustproof to the space, and grease proofing conditional request is higher, in addition, after belt uses a period of time, the phenomenon such as delamination easily occurs, tear, break, skid.
Summary of the invention
The object of the present invention is to provide a kind of by chain transmission, little, as to be applicable to dual overhead camshaft engine V timing chain transmission and engine oil pump drive system take up room.
For achieving the above object, a kind of timing chain transmission provided by the invention and engine oil pump drive system, comprise the crankshaft sprocket that is double dentation, wherein the timing chain of inlet and outlet sprocket wheel is walked around in the upper installation of a row, the upper oil pump chain of walking around the oil pump sprocket wheel of installing of another row, oil pump sprocket wheel be positioned at crankshaft sprocket under.
The present invention installs respectively timing chain and oil pump chain on the crankshaft sprocket of double dentation, make crankshaft sprocket by timing chain and oil pump chain drive into respectively, exhaust sprocket and oil pump sprocket wheel, adopt chain transmission replacement belt transmission in the past, avoided the replacing belt, the oil pump sprocket wheel be arranged in crankshaft sprocket under, saved the space of motor.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of movable guiding rail and stretcher among the present invention.
Embodiment
A kind of timing chain transmission and engine oil pump drive system, comprise the crankshaft sprocket 1 that is double dentation, wherein upper installation of a row walked around import/exhaust sprocket wheel 2,3 timing chain 5, the upper oil pump chain 6 of walking around oil pump sprocket wheel 4 of installing of another row, oil pump sprocket wheel 4 be positioned at crankshaft sprocket 1 under, with oil pump sprocket wheel 4 be arranged on crankshaft sprocket 1 under, shortened on the one hand the length of required chain between the two, reduce the number of chain guide, avoid chain in the process of transmitting, to misplace; On the other hand, compare with the arrangement along the axial arranged oil pump sprocket wheel 4 of crankshaft sprocket 1 in the past, the present invention has saved the space of motor fore-and-aft direction.Positive apparent direction of the present invention refers to face the direction at crankshaft sprocket 1 place, and crankshaft sprocket 1 clockwise direction rotates.
In the present invention, timing chain 5 adopts quiet chain to reduce the noise in the engine operation process, and oil pump chain 6 adopts roller chain.Import/exhaust sprocket wheel 2,3 numbers of teeth are 2:1 with the ratio of crankshaft sprocket 1 number of teeth, oil pump sprocket wheel 4 is 1:1.1 with the ratio of crankshaft sprocket 1 number of teeth, this structure is guaranteed when engine operation, the rotating speed of crankshaft sprocket 1 is the twice of import/exhaust sprocket wheel 2,3 rotating speeds, simultaneously, the rotating speed of oil pump sprocket wheel 4 less than and near the rotating speed of crankshaft sprocket 1, the present invention can be applied on the rev-happy engine, reliable operation, characteristics of compact layout.
In conjunction with Fig. 1,2, the pilled-in selvedge of timing chain 5, be that timing chain 5 places between crankshaft sprocket 1 and the exhaust sprocket 3 are provided with fixed guide 9, it is wear plate 91 that fixed guide 9 adopts wear-resisting tinsel with timing chain 5 contacted parts, wear plate 91 is installed on the supporting plate 92 of steel, the junction that connects between the sheet metal 93 of fixed guide 9 and the supporting plate 92 forms guide groove, and timing chain 5 can slide in guide groove, and sheet metal 93 is fixed on the engine cylinder-body by bolt 94.
In conjunction with Fig. 1,2, the slack list of timing chain 5, be that timing chain 5 places between crankshaft sprocket 1 and the air inlet sprocket wheel 2 are provided with movable guiding rail 7, an end of movable guiding rail 7 is hinged by bolt 71 and motor, and movable guiding rail 7 can freely rotate around the polished rod part of bolt 71, the other end of movable guiding rail 7 is provided with tension device, in the present invention, tension device adopts stretcher 8, when timing chain 5 relaxes, stretcher 8 is upspring, timing chain 5 tensionings; Otherwise, if timing chain 5 is in the state of over-tension, then pressure is passed to stretcher 8 with compensator or trimmer pressure.As seen, 5 places arrange stretcher 8 at timing chain, can control the elasticity of timing chain 5, reduce the friction and wear between chain and the guide rail.In addition, offering through hole 72 at movable guiding rail 7 is oil groove, the entry end of through hole 72 is that oil outlet is communicated with the piston mouth of stretcher 8, the outlet end of through hole 72 is connected mutually with timing chain 5, stretcher 8 is from starting power traction oil, the machine oil that flows out from the piston crown of stretcher 8 on timing chain 5, is realized lubricated to timing chain 5 by through hole 72 notes.
In conjunction with Fig. 1, timing chain 5 places between the described import/exhaust sprocket wheel 2,3 are provided with the first chain guide 12, because the timing chain 5 between the import/exhaust sprocket wheel 2,3 belongs to the free segment chain, this position lacks support zone to be supported, and the first chain guide 12 is set can effectively prevents from misplacing between sprocket wheel and the chain.One side of the oil pump chain 6 between crankshaft sprocket 1 and the oil pump sprocket wheel 4 is provided with the second chain guide 10, the second chain guides 10 and is provided with spring sheet 11, presses down spring sheet 11 to produce pretightening force, and its effect is similar with stretcher 8.Therefore only oil pump chain 6 is compared with timing chain 5, and oil pump chain 6 is shorter, needs in a side of oil pump chain 6 the second chain guide 10 to be installed and draws oil pump chain 6 in order to holder and get final product.As seen, free segment chain between crankshaft sprocket 1, oil pump sprocket wheel 4, import/exhaust sprocket wheel 2,3 all adopts the chain guide holder to draw, avoided chain off-limits beating in the process of operation, and, the guide rail that contacts with chain adopts reinforced high-abrasive material to make, both kept enough rigidity, and avoided again wearing and tearing between guide rail and the chain.
In sum, core of the present invention is to adopt the chain transmission to substitute Synchronous Belt Drive in the past, need not the transmission part of the system that changes, in addition, oil pump sprocket wheel 4 be arranged in crankshaft sprocket 1 under, saved large quantity space.The present invention can be applied on the rev-happy engine, reliable operation, characteristics of compact layout.
Claims (8)
1. a timing chain transmission and engine oil pump drive system, it is characterized in that: comprise the crankshaft sprocket (1) that is double dentation, the upper timing chain (5) of walking around inlet and outlet sprocket wheel (2,3) of installing of one row, the upper oil pump chain (6) of walking around oil pump sprocket wheel (4) of installing of another row, oil pump sprocket wheel (4) be positioned at crankshaft sprocket (1) under; The ratio of described inlet and outlet sprocket wheel (2, the 3) number of teeth and crankshaft sprocket (1) number of teeth is 2: 1, and oil pump sprocket wheel (4) is 1: 1.1 with the ratio of crankshaft sprocket (1) number of teeth.
2. timing chain transmission according to claim 1 and engine oil pump drive system, it is characterized in that: the timing chain (5) between described crankshaft sprocket (1) and the inlet and outlet sprocket wheel (2,3) locates to be provided with chain guide.
3. timing chain transmission according to claim 1 and engine oil pump drive system, it is characterized in that: the timing chain (5) between the described inlet and outlet sprocket wheel (2,3) locates to be provided with the first chain guide (12).
4. timing chain transmission according to claim 1 and engine oil pump drive system, it is characterized in that: a side of the oil pump chain (6) between described crankshaft sprocket (1) and the oil pump sprocket wheel (4) is provided with the second chain guide (10).
5. timing chain transmission according to claim 4 and engine oil pump drive system, it is characterized in that: the pilled-in selvedge section of described timing chain (5) is provided with for the fixed guide (9) that supports timing chain (5), the slack list section of timing chain (5) is provided with for the movable guiding rail (7) that supports timing chain (5), an end installation tensioner of movable guiding rail (7).
6. timing chain transmission according to claim 5 and engine oil pump drive system is characterized in that: described the second chain guide (10) is provided with for the spring sheet (11) of regulating oil pump chain (6) elasticity.
7. timing chain transmission according to claim 6 and engine oil pump drive system is characterized in that: described tension device employing stretcher (8).
8. timing chain transmission according to claim 6 and engine oil pump drive system, it is characterized in that: offer through hole (72) on the described movable guiding rail (7), the one end is communicated with the piston mouth of stretcher (8), and its other end is towards timing chain (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810195834 CN101363335B (en) | 2008-09-03 | 2008-09-03 | Timing chain-driven and engine oil pump drive system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810195834 CN101363335B (en) | 2008-09-03 | 2008-09-03 | Timing chain-driven and engine oil pump drive system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101363335A CN101363335A (en) | 2009-02-11 |
| CN101363335B true CN101363335B (en) | 2013-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810195834 Expired - Fee Related CN101363335B (en) | 2008-09-03 | 2008-09-03 | Timing chain-driven and engine oil pump drive system |
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| Country | Link |
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| CN (1) | CN101363335B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9121474B2 (en) * | 2011-06-30 | 2015-09-01 | Ford Global Technologies, Llc | Engine drive system |
| DE102013219073A1 (en) * | 2013-09-23 | 2015-03-26 | Schaeffler Technologies Gmbh & Co. Kg | Clamping device with a ventilation unit |
| CN105257358A (en) * | 2015-10-06 | 2016-01-20 | 周家全 | Chain transmission system of diesel engine and technological method of chain transmission system |
| CN106065794B (en) * | 2016-08-11 | 2019-09-03 | 杭州东华链条集团有限公司 | A kind of double-strand engine timing system |
| CN106499458B (en) * | 2016-11-04 | 2019-02-19 | 安徽江淮汽车集团股份有限公司 | Optical engine timing system |
| CN107587909A (en) * | 2017-10-25 | 2018-01-16 | 奇瑞汽车股份有限公司 | A kind of diesel engine Dual Over Head Camshaft and engine oil pump drive system |
| CN110578569A (en) * | 2018-06-08 | 2019-12-17 | 舍弗勒技术股份两合公司 | P0 system integrated into engine transmission timing system and vehicle |
| CN109139829A (en) * | 2018-09-28 | 2019-01-04 | 奇瑞汽车股份有限公司 | Low friction timing chain transmission device |
| CN109372948A (en) * | 2018-09-28 | 2019-02-22 | 奇瑞汽车股份有限公司 | Timing chain transmission device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1536246A (en) * | 2003-04-10 | 2004-10-13 | �ִ��Զ�����ʽ���� | Supporting mechanism for timing chain of engine |
| CN1550685A (en) * | 2003-04-10 | 2004-12-01 | 株式会社威伊迪 | Engine accessory drive system |
-
2008
- 2008-09-03 CN CN 200810195834 patent/CN101363335B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1536246A (en) * | 2003-04-10 | 2004-10-13 | �ִ��Զ�����ʽ���� | Supporting mechanism for timing chain of engine |
| CN1550685A (en) * | 2003-04-10 | 2004-12-01 | 株式会社威伊迪 | Engine accessory drive system |
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| Publication number | Publication date |
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| CN101363335A (en) | 2009-02-11 |
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Granted publication date: 20130327 |