Title:
GASEOUS COMPRESSOR
Document Type and Number:
Japanese Patent JP2002070774
Kind Code:
A
Abstract:
To reduce the hammering sound level of a discharge valve when the pressure of a cylinder chamber goes down and prevent the valve from being damaged.
A small cross section area groove 31 is formed on the inner plate 1b of a cylinder block 1 from the center of a discharge hole 8 to a designated degree θ in front of a rotor rotating direction.
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Inventors:
AOKI SEI
Application Number:
JP2000267038A
Publication Date:
March 08, 2002
Filing Date:
September 04, 2000
Export Citation:
Assignee:
SEIKO INSTR INC
International Classes:
F04C29/12; F04C18/344; F04C29/00; F04C29/06; (IPC1-7): F04C18/344; F04C29/00; F04C29/06
Domestic Patent References:
| JPS6149088U | 1986-04-02 | |||
| JPS5471413A | 1979-06-08 | |||
| JPS60128987A | 1985-07-10 | |||
| JPH01149582U | 1989-10-17 | |||
| JPS55134786A | 1980-10-20 |
Attorney, Agent or Firm:
Shigenori Wada