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Position restricted mechanism for drive piston in device of slowing down speed of engine

A technology for driving pistons and limiting mechanisms, applied in the field of limiting mechanisms, which can solve the problems that the driving piston 105 cannot rotate freely, unsatisfactory working cooperation, short working life, etc., and achieves simple structure, novel and ingenious conception, and long service life Effect

Inactive Publication Date: 2010-08-25
马银良
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, since the limit pin 139 passes through the radial through hole 141 of the driving piston 105, the driving piston 105 cannot freely rotate relative to the piston sleeve 107, resulting in an unsatisfactory working cooperation between the driving piston 105 and the piston sleeve 107. There are disadvantages of uneven wear and short working life

Method used

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  • Position restricted mechanism for drive piston in device of slowing down speed of engine
  • Position restricted mechanism for drive piston in device of slowing down speed of engine
  • Position restricted mechanism for drive piston in device of slowing down speed of engine

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] As shown in Fig. 2, Fig. 3 and Fig. 4, it is a schematic structural view of the position-limiting mechanism of the present invention (only the structure of the present invention is marked in Fig. 2 and Fig. 3, and the same structure as in Fig. 1 is omitted and unmarked ), including the piston sleeve 307, the driving piston 305 and the elastic snap ring 202.

[0021] The inside of the piston sleeve 307 is provided with an axial drive piston hole 109 and a circumferential ring groove 113 (see Fig. 1 ) at the outer periphery; a radial through hole 206 is set in the ring groove 113; a drive piston hole 109 is set A circumferential snap ring groove 204 is aligned with the radial through hole 206 .

[0022] The driving piston 305 is located in the driving piston hole 109 and can move freely, and a circumferential ring groove 200 is arranged o...

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PUM

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Abstract

This invention discloses a limit system of a drive piston of a buffer of an engine including a piston jacket and a drive piston, in which a radial through hole is set in a ring slot on the jacket, a binding ring slot is set in the drive piston hole to aim at the radial through hole, the drive piston is in the hole of the piston moving freely, a ring slot is set at the peripheral of the piston aiming at the binding ring slot on the jacket and a through hole is set in the slot with an elastic binding ring in it aiming at the slot on the piston and the difference of the axial height of the ring slot and the axial thickness of the binding ring is S0.

Description

technical field [0001] The invention relates to a mechanism for limiting the movement of a driving piston of an engine retarder, which belongs to the technical field of mechanical manufacturing. Background technique [0002] The "variable valve engine retarder" of Chinese patent ZL200520009803.X, as shown in Figure 1, is an invention created by the inventor to realize the throttle opening of the exhaust valve changing with the engine speed. In the ZL200520009803.X patent, a driving piston 105 and a limit pin 139 are provided. Due to the limit blocking effect of the limit pin 139, the movement stroke of the driving piston 105 has a quantitative characteristic. [0003] However, since the limit pin 139 passes through the radial through hole 141 of the driving piston 105, the driving piston 105 cannot freely rotate relative to the piston sleeve 107, resulting in an unsatisfactory working cooperation between the driving piston 105 and the piston sleeve 107. There are disadvanta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01L13/00F02D13/00
Inventor 马银良
Owner 马银良