CN2883734Y - Machine-oil pump of engine - Google Patents
Machine-oil pump of engine Download PDFInfo
- Publication number
- CN2883734Y CN2883734Y CN 200620110326 CN200620110326U CN2883734Y CN 2883734 Y CN2883734 Y CN 2883734Y CN 200620110326 CN200620110326 CN 200620110326 CN 200620110326 U CN200620110326 U CN 200620110326U CN 2883734 Y CN2883734 Y CN 2883734Y
- Authority
- CN
- China
- Prior art keywords
- oil pump
- camshaft
- pump shaft
- engine
- bolt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to an engine machine pump, which comprises a housing (1), an inner rotor (2), an external rotor (3) and an oil pump shaft (4). The oil pump shaft (4) is connected with a camshaft (5) through a bolt (6); wherein the bolt (6) is screwed on the camshaft (5), and a joint trough (6a) is arranged on one end of the bolt (6); the oil pump shaft (4) inserted into the joint trough (6a); the bolt (6) can also be directly arranged on the camshaft (5) to make a direct connection between the oil pump shaft (4) and the camshaft (5); the oil pump housing (1) and the engine casing are made into an integrated structure. The utility model has the advantages that the oil pump is driven by the camshaft directly or indirectly, which makes the driving device very simple and saves the space, simplifying the engine structure and leading to the development of a compact size and a light weight, therefore the utility model is very suitable for a mopped engine.
Description
Technical field
The utility model belongs to technical field of engines, specifically, relates to the oil pump of motor.
Background technique
Oil pump is one of important composition parts of engine lube system, and two kinds of gear type and rotator types are arranged usually.Rotor-type oil pump is little, in light weight because of compact structure, boundary dimension, oil suction degree of vacuum is big, the pump oil mass is big, fuel feeding good uniformity and low cost and other advantages are widely used on the medium and small motor.Rotor-type oil pump is made up of housing, internal rotor, external rotor and pump cover etc.Internal rotor is fixed on the machine oil pump shaft with key or pin, directly or indirectly drive by gear or sprocket wheel by bent axle, internal rotor drives the nonsynchronous in the same way together rotation of external rotor again, and machine oil is constantly gone out to oil road one side and through the oil road force feed from oil input channel one side pump.
At present, oil pump that remains conventional engines that on known booster vehicle engine, adopts and driving mechanism form thereof, adopt gear or sprocket wheel chain drive mechanism, make its driving mechanism complexity, it is big to take up room, simple with the booster vehicle engine claimed structure, volume is little and lightweight principle is runed counter to.
The model utility content
It is simple that problem to be solved in the utility model provides a kind of driving structure, the engine oil pump that cost is low.
For addressing the above problem, engine oil pump of the present utility model contains housing, inner and outer rotors, external rotor and machine oil pump shaft, and internal rotor is fixed on the machine oil pump shaft with key or pin, and external rotor is contained on the internal rotor, the machine oil pump shaft directly or indirectly and camshaft link.
Described machine oil pump shaft links by bolt and camshaft, and wherein bolt thread is connected on the camshaft, and an end of bolt is provided with connecting groove, and the machine oil pump shaft inserts in this connecting groove.
The housing and the engine housing of described oil pump become one.
The beneficial effects of the utility model are: the machine oil pump shaft directly or indirectly and camshaft link, be that the machine oil pump shaft changes by camshaft and directly or indirectly drives, the machine oil pump shaft drives the inside and outside rotor motion of oil pump again, thereby has saved driving gear or the sprocket wheel chain that is used between bent axle and the machine oil pump shaft.Because the discharge capacity of booster vehicle engine is little, rotating speed is less demanding, and is little to the demand of machine oil, thereby also not high to the rotating speed requirement of machine oil pump shaft, can meet the demands fully with camshaft actuated.The driving mechanism of oil pump is simple, has saved the space, helps the simplification of engine structure, develop to volume direction little and in light weight, so the utility model is highly suitable for booster vehicle engine.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in Figure 1; a kind of oil pump of booster vehicle engine; have housing 1, internal rotor 2, external rotor 3 and machine oil pump shaft 4; machine oil pump shaft 4 links by bolt 6 and camshaft 5; wherein bolt 6 is threaded on the camshaft 5; one end of bolt 6 is provided with connecting groove 6a; machine oil pump shaft 4 inserts among this connecting groove 6a; connecting groove 6a is flat groove or other shape; the shape that the insertion end of machine oil pump shaft 4 is designed to match with it; and make the sense of rotation of machine oil pump shaft 4 opposite with the thread rotary orientation of bolt 6, do not relatively rotate between machine oil pump shaft 4 and the bolt 6 guaranteeing.Machine oil pump shaft 4 also can be directly and camshaft 5 link, be about to connecting groove 6a and be set directly on the camshaft 5.
Oil pump housing 1 shown in Figure 1 becomes one with engine housing, and does not need independent making machine oil pump case, and internal rotor 2, external rotor 3 and machine oil pump shaft 4 directly are assemblied on the engine housing, and so further simplified structure reduces cost.
During engine operation, drive 4 rotations of machine oil pump shaft by bolt 6 when camshaft 5 rotates, machine oil pump shaft 4 drives inside and outside rotor 2 and 3 again and rotates, thereby finishes the work of pump oil.Though compare the rotating speed of camshaft 5 with bent axle low, because the discharge capacity of booster vehicle engine is little, rotating speed is less demanding, and is little to the demand of machine oil, thereby also not high to the rotating speed requirement of machine oil pump shaft, can meet the demands fully with camshaft actuated.
Claims (3)
1, a kind of engine oil pump, comprise housing (1), inside and outside rotor (2,3) and machine oil pump shaft (4), internal rotor (2) is fixed on the machine oil pump shaft (4) with key or pin, external rotor (3) is contained on the internal rotor (2), it is characterized in that: described machine oil pump shaft (4) directly or indirectly and camshaft (5) link.
2, engine oil pump according to claim 1, it is characterized in that: described machine oil pump shaft (4) links by bolt (6) and camshaft (5), wherein bolt (6) is threaded on the camshaft (5), one end of bolt (6) is provided with connecting groove (6a), and machine oil pump shaft (4) inserts in this connecting groove (6a).
3, engine oil pump according to claim 1 is characterized in that: the housing of described oil pump (1) becomes one with engine housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620110326 CN2883734Y (en) | 2006-04-12 | 2006-04-12 | Machine-oil pump of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620110326 CN2883734Y (en) | 2006-04-12 | 2006-04-12 | Machine-oil pump of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2883734Y true CN2883734Y (en) | 2007-03-28 |
Family
ID=37956796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620110326 Expired - Fee Related CN2883734Y (en) | 2006-04-12 | 2006-04-12 | Machine-oil pump of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2883734Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102061988A (en) * | 2011-01-27 | 2011-05-18 | 东风朝阳柴油机有限责任公司 | Drive connecting member of vacuum pump |
| US7980218B2 (en) | 2006-05-30 | 2011-07-19 | Honda Motor Co., Ltd. | Pump driving device in engine |
-
2006
- 2006-04-12 CN CN 200620110326 patent/CN2883734Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7980218B2 (en) | 2006-05-30 | 2011-07-19 | Honda Motor Co., Ltd. | Pump driving device in engine |
| CN102061988A (en) * | 2011-01-27 | 2011-05-18 | 东风朝阳柴油机有限责任公司 | Drive connecting member of vacuum pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHONGQING ZONGSHEN ENGINE MANUFACTURING CO. Free format text: FORMER OWNER: CHONGQING ZONGSHEN TECHNOLOGY DEVELOPMENT + RESEARCH CO., LTD. Effective date: 20071221 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20071221 Address after: Shen Shen industrial park, Banan District, Chongqing, China: 400054 Patentee after: Chongqing Zongshen Engine Manufacturing Co., Ltd. Address before: No. 25 Erlang Road, Chongqing hi tech Development Zone, Shiqiaopu, 400039 Patentee before: Chongqing Zongshen Technology Development & Research Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070328 Termination date: 20140412 |