CN2677622Y - Centrifugal decompressor of engine - Google Patents
Centrifugal decompressor of engine Download PDFInfo
- Publication number
- CN2677622Y CN2677622Y CNU2004200326811U CN200420032681U CN2677622Y CN 2677622 Y CN2677622 Y CN 2677622Y CN U2004200326811 U CNU2004200326811 U CN U2004200326811U CN 200420032681 U CN200420032681 U CN 200420032681U CN 2677622 Y CN2677622 Y CN 2677622Y
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- groove
- engine
- pin
- cam
- piece
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- Expired - Fee Related
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Abstract
The utility model relates to a centrifugal decompressor of engine. The isolator body (8) with the belt spacing dummy club is fixed to a cam axle, the exhaust cam (5) base circle of the wheel and axle is provided with a groove, one end of the eccentric center part of the eccentric pin (2) is inserted into the groove of the exhaust cam (5), and can rotate in the groove; the eccentric pin (2) fixedly connect to one end of a dialing pin (7), the other end of the dialing pin (7) is inserted into the dialing channels of one end of the flyweight (1), and the other end of the flyweight (1) connects to the isolator body (8); one end of the extension spring (4) connects to the isolator body (8), and the other end connects to the flyweight (1). As the utility model controls the operating of the isolator through the variance of the engine rotation speed, the startabilty of the engine is improved, the startup of the engine is easy and reliable, the total part number of the engine is cut down, and the assembly technique of the engine is optimized.
Description
Technical field
The utility model relates to a kind of motorcycle engine decompressor, particularly a kind of centrifugal decompressor that starts one-way element.
Background technique
At present, in the motorcycle engine application, starting one-way element mainly is the contact-type decompressor.There is the assembly technology complexity in this contact-type decompressor, uses defectives such as unreliable, often because of starting the malfunctioning phenomenon that the engine start difficulty occurs of one-way element.
Summary of the invention
The purpose of this utility model provides the centrifugal decompressor of a kind of motor, and it controls one-way element work by the variation of engine speed, can improve the startability of motor, makes the startup of motor easily reliable.
For reaching above-mentioned purpose, the unidirectional body of band positive stop lug boss of the present utility model is fixed on the camshaft, it is characterized in that: on the exhaust cam basic circle of camshaft groove is set, eccentric part one end of cam pin inserts in the groove of exhaust cam, and can rotate in groove; Cam pin is fixedlyed connected with finger one end, and the finger the other end is inserted in the allocating slot that flies piece one end, flies the piece the other end and is connected on the unidirectional body; Extension spring one end is connected on the unidirectional body, and the other end is connected and flies on the piece.
Owing to adopted such scheme, extension spring is connected in unidirectional body and flies between the piece, under the state of pulling force greater than centrifugal force of extension spring, the pulling force of extension spring make fly piece around the gyration center of swivel pin to counterclockwise moving, and contact with the positive stop lug boss of unidirectional body, the allocating slot that flies piece is simultaneously stirred finger, and the drive cam pin turns to the maximum eccentric position in the groove of exhaust cam basic circle, from exhaust cam, engine exhaust port is opened and is reduced pressure, and makes engine start easy with the exhaust rocker arm top.Under the state of centrifugal force greater than tension spring tension, flying piece moves to clockwise direction around the gyration center of swivel pin, and stir finger by allocating slot and drive cam pin and in the groove of exhaust cam basic circle, turn to minimum eccentric position, the exhaust rocker arm return contacts with the exhaust cam surface, guarantees the motor proper functioning.
The utility model has improved the startability of motor, makes the startup of motor easily reliable.And reduced the total number of spare parts of motor, optimized the assembly technology of motor.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is a structure diagram of the present utility model;
Fig. 2 is the utility model at the motor working state figure during normal ignition not;
Fig. 3 is the working state figure of the utility model when the motor normal ignition.
Embodiment
Referring to Fig. 1, the unidirectional body 8 usefulness keys 3 of band positive stop lug boss are fixed on the camshaft, determine axially locating with the end face of unidirectional body 8 with the shaft shoulder contact of camshaft.On exhaust cam 5 basic circles of camshaft groove is set, eccentric part one end of cam pin 2 inserts in the groove of exhaust cam 5, and can rotate in groove.Groove on exhaust cam 5 basic circles radially groove depth less than the maximum eccentric of cam pin 2, minimum eccentric greater than cam pin 2.Finger 7 one ends are connected with cam pin 2 interference fit, and being threaded also can reach effect same; The other end is inserted in the allocating slot that flies piece 1 one ends, is Spielpassung.Fly piece 1 the other end and be connected with unidirectional body 8, and can rotate around the gyration center of swivel pin 9 with respect to unidirectional body 8 by swivel pin 9.Fly piece 1 and be circular arc, extension spring 4 one ends are connected and fly piece 1 near near the aperture the swivel pin 9, and the other end is connected on the breach of unidirectional body 8 circumference relative with flying piece 1 interior circular arc, after extension spring 4 assembles certain pulling force is arranged.
Referring to Fig. 2, when motor normal ignition not as yet, the rotating speed of motor is less than motor continuously during the minimum speed of igniting, unidirectional body 8 is with the camshaft low speed rotation, under being connected in unidirectional body 8 and flying extension spring 4 tension between the piece 1, the tensile force f 2 of extension spring 4 is greater than the centrifugal force F1 that flies piece 1, the pulling force of extension spring 4 make fly piece 1 around the gyration center of swivel pin 9 to counterclockwise moving, and contact with the positive stop lug boss of unidirectional body 8, the allocating slot that flies piece 1 is simultaneously stirred finger 7, and drive cam pin 2 turns to the maximum eccentric position in the groove of exhaust cam 5 basic circles, exhaust rocker arm 6 is pushed up from exhaust cam 5, engine exhaust port was opened and was reduced pressure this moment, made engine start easily reliable.
Referring to Fig. 3, when the burning of motor normal ignition, the rotating speed of motor is greater than motor continuously during the minimum speed of igniting, unidirectional body 8 is with the camshaft high speed rotating, fly the tensile force f 2 of the centrifugal force F1 of piece 1 this moment greater than extension spring 4, flying piece 1 moves to clockwise direction around the gyration center of swivel pin 9, and stir finger 7 by allocating slot and drive cam pins 2 and in the groove of exhaust cam 5 basic circles, turn to minimum eccentric position, exhaust rocker arm 6 returns contact with exhaust cam 5 surfaces, guarantee the motor proper functioning.
Claims (3)
1. centrifugal decompressor of motor, the unidirectional body (8) of band positive stop lug boss is fixed on the camshaft, it is characterized in that: on the exhaust cam of camshaft (5) basic circle groove is set, eccentric part one end of cam pin (2) inserts in the groove of exhaust cam (5), and can rotate in groove; Cam pin (2) is fixedlyed connected with finger (7) one ends, and finger (7) the other end is inserted in the allocating slot that flies piece (1) one end, flies piece (1) the other end and is connected on the unidirectional body (8); Extension spring (4) one ends are connected on the unidirectional body (8), and the other end is connected and flies on the piece (1).
2. the centrifugal decompressor of motor according to claim 1 is characterized in that: the groove that is provided with on the basic circle of exhaust cam (5), its radially groove depth less than the maximum eccentric of cam pin (2), minimum eccentric greater than cam pin (2).
3. the centrifugal decompressor of motor according to claim 1, it is characterized in that: fly piece (1) and be circular arc, it connected with being connected with swivel pin (9) of unidirectional body (8), and can rotate around the gyration center of swivel pin (9) with respect to unidirectional body (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200326811U CN2677622Y (en) | 2004-01-30 | 2004-01-30 | Centrifugal decompressor of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200326811U CN2677622Y (en) | 2004-01-30 | 2004-01-30 | Centrifugal decompressor of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2677622Y true CN2677622Y (en) | 2005-02-09 |
Family
ID=34583707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200326811U Expired - Fee Related CN2677622Y (en) | 2004-01-30 | 2004-01-30 | Centrifugal decompressor of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2677622Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007095821A1 (en) * | 2006-02-22 | 2007-08-30 | Guangzhou Panyu Huanan Motors Group Co., Ltd. | Starting decompression device |
| CN101187319B (en) * | 2007-12-21 | 2010-06-23 | 重庆隆鑫机车有限公司 | Lower positioned camshaft type engine decompression device |
| CN104564213A (en) * | 2014-12-24 | 2015-04-29 | 重庆宏军汽车配件有限公司 | Pressure reducing valve for high-power gasoline engine |
| CN106401689A (en) * | 2015-07-27 | 2017-02-15 | 三阳工业股份有限公司 | Engine with two decompression devices |
-
2004
- 2004-01-30 CN CNU2004200326811U patent/CN2677622Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007095821A1 (en) * | 2006-02-22 | 2007-08-30 | Guangzhou Panyu Huanan Motors Group Co., Ltd. | Starting decompression device |
| CN101187319B (en) * | 2007-12-21 | 2010-06-23 | 重庆隆鑫机车有限公司 | Lower positioned camshaft type engine decompression device |
| CN104564213A (en) * | 2014-12-24 | 2015-04-29 | 重庆宏军汽车配件有限公司 | Pressure reducing valve for high-power gasoline engine |
| CN106401689A (en) * | 2015-07-27 | 2017-02-15 | 三阳工业股份有限公司 | Engine with two decompression devices |
| CN106401689B (en) * | 2015-07-27 | 2021-06-01 | 三阳工业股份有限公司 | Engine with double pressure reducing devices |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: LIFAN INDUSTRIAL (GROUP) CO. Free format text: FORMER NAME OR ADDRESS: CHONGQING LIFAN INDUSTRY ( GROUP ) CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Chongqing city Shapingba District zhangjiewan Bridge No. 60, zip code: 400037 Patentee after: Lifan Industrial(Group) Co., Ltd. Address before: Chongqing city Shapingba District zhangjiewan Bridge No. 60, zip code: 400037 Patentee before: Chongqing Lifan Industrial (Group) Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050209 Termination date: 20100130 |