Title:
EXHAUST VALVE
Document Type and Number:
WIPO Patent Application WO/2018/233385
Kind Code:
A1
Abstract:
An exhaust valve (100), comprising a valve (1) and a spring (2) for driving the valve to rotate between an open position and a closed position. The exhaust valve further comprises a hydraulic cylinder (3); the spring is at least partly sleeved on the hydraulic cylinder; the hydraulic cylinder comprises a cylinder part (31) and pivots (32) located at both sides of the cylinder part; the valve can rotate around the pivots; the hydraulic cylinder comprises a rotation piece (33) rotating together with the pivots, and a hydraulic medium in the hydraulic cylinder; the rotation piece is provided with through holes (333); when the rotation piece rotates, the hydraulic medium in the space at one side of the rotation piece passes through the through holes to enter the space at the other side of the rotation piece. According to the exhaust valve, a damping effect is achieved by means of the hydraulic medium; thus, the speed at which the valve rotates is low, the valve is prevented from quickly touching a base, and the touch force and noise are reduced.
Inventors:
ZHANG PENGFEI (CN)
MA ZHUO (CN)
YIN RENJUN (CN)
MA ZHUO (CN)
YIN RENJUN (CN)
Application Number:
PCT/CN2018/085786
Publication Date:
December 27, 2018
Filing Date:
May 07, 2018
Export Citation:
Assignee:
TENNECO SUZHOU EMISSION SYSTEM CO LTD (CN)
International Classes:
F16K15/03; F01N13/00
Domestic Patent References:
| WO1995013460A1 | 1995-05-18 |
Foreign References:
| CN206860965U | 2018-01-09 | |||
| US6176347B1 | 2001-01-23 | |||
| CN104565455A | 2015-04-29 | |||
| CN106195428A | 2016-12-07 | |||
| CN104405932A | 2015-03-11 |
Attorney, Agent or Firm:
SUZHOU WISPRO INTELLECTUAL PROPERTY AGENCY (CN)
Download PDF: