VALVE DEVICE FOR COMPRESSOR

WIPO Patent Application WO/2012/120964

A1

A valve device for a compressor is improved to reduce noise due to pressure pulsation, to minimize a reduction in the efficiency of the compressor, and to ensure the durability of the valve device to minimize degradation of the performance of the compressor. A valve device having a reed valve structure comprises: a communication hole (103a or 103b) open in a valve plate (103); a valve seat (103e) formed at the outer peripheral edge of the communication hole (103a or 103b) so as to protrude in a boss-like shape relative to a groove (103f) formed outside and around the outer peripheral edge; and a valve body (151) having a base end section (151A) connected to the valve plate (103) and also having a front end section (151B) capable of making contact with and separating from the seating surface of the valve seat (103e). The valve device is also provided with ribs (103g) extending in the radial direction from the peripheral wall of the portion of the valve seat (103e), on which the front end side of the valve body (151) is seated, to the outer peripheral wall of the groove (103f).

WO/2022/013061

PISTON FOR A PISTON PUMP, AND PISTON PUMP

ITO TAKAHIRO (JP)
MATSUZAKI YOSHIE (JP)

PCT/JP2012/053042

September 13, 2012

February 10, 2012

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SANDEN CORP (JP)
ITO TAKAHIRO (JP)
MATSUZAKI YOSHIE (JP)

F04B39/10

JP2008002370A	2008-01-10
JP2009108687A	2009-05-21
JP2002070768A	2002-03-08
JPH041682U	1992-01-08
JP2001082337A	2001-03-27
JPH0281973A	1990-03-22
JP2011226464A	2011-11-10
JPH11210626A	1999-08-03

See also references of EP 2685103A4

SASAJIMA, Fujio et al. (JP)
Sasajima Wealth 2 male (JP)

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