Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
CONTROL VALVE FOR VARIABLE-CAPACITY COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2018/003251
Kind Code:
A1
Abstract:
Provided is a control valve for variable-capacity compressor with which its possible to maintain the flowrate when startup-properties are required, prevent unnecessary excess discharge of oil from within the crank chamber, and improve durability of the compressor. An auxiliary valve body (17) that opens and closes an interval relief passage (16) provided within the main valve body (15) has a curved surface part (auxiliary valve main body) (17a) that varies, according to the amount of lift, the flow rate of the fluid that flows through the internal relief passage (16), and the control angle of the curved surface part (17a) is made greater in steps moving towards the tip (bottom edge).

Inventors:
KUME Yoshiyuki (17-24 Todoroki 7-chome, Setagaya-k, Tokyo 82, 〒1580082, JP)
ASANO Hisashi (17-24 Todoroki 7-chome, Setagaya-k, Tokyo 82, 〒1580082, JP)
TOMARU Masaki (17-24 Todoroki 7-chome, Setagaya-k, Tokyo 82, 〒1580082, JP)
ITOH Masaharu (17-24 Todoroki 7-chome, Setagaya-k, Tokyo 82, 〒1580082, JP)
Application Number:
JP2017/015837
Publication Date:
January 04, 2018
Filing Date:
April 20, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
FUJIKOKI CORPORATION (17-24, Todoroki 7-chome Setagaya-k, Tokyo 82, 〒1580082, JP)
International Classes:
F04B27/18
Attorney, Agent or Firm:
HIRAKI & ASSOCIATES (Atago Green Hills MORI Tower 32F, 5-1 Atago 2-chome, Minato-k, Tokyo 32, 〒1056232, JP)
Download PDF: