Title:
EXHAUST VALVE
Document Type and Number:
WIPO Patent Application WO/2022/201559
Kind Code:
A1
Abstract:
An exhaust valve that can improve a sealing property in a closed state and enables high-performance adjustment of an exhaust amount or exhaust noise. The exhaust valve 1 is provided with: a pipe body 2 that connects an upstream pipe 11 and a downstream pipe 12 for exhaust to each other; a valve plate 4 that is disposed inside the pipe body 2 and is attached to a rotation shaft 3 rotated by driving of an actuator 8, the valve plate 4 being rotatable so as to open and close an exhaust flow path inside the pipe body 2; and a stopper 5 that is fixed inside the pipe body 2 and comes into contact with the valve plate 4 in a closed state. At least one of an upstream side contact surface and a downstream side contact surface of the stopper 5 to the valve plate 4 is extended along an inner peripheral surface 24 of the pipe body 2 at a position closer to an upstream side or a downstream side of exhaust than the outer periphery of the rotation shaft 3. The valve plate 4 comes into contact with the upstream side contact surface and the downstream side contact surface at a position at which the valve plate 4 closes the exhaust flow path.
More Like This:
Inventors:
NOMURA TETSUAKI (JP)
Application Number:
PCT/JP2021/013159
Publication Date:
September 29, 2022
Filing Date:
March 26, 2021
Export Citation:
Assignee:
SANKEI GIKEN KOGYO CO LTD (JP)
International Classes:
F01N13/08; F02D9/10
Foreign References:
| JP2006105094A | 2006-04-20 | |||
| JP2000018055A | 2000-01-18 |
Attorney, Agent or Firm:
MOTOI Shigeyuki (JP)
Download PDF: