Title:
VARIABLE CAPACITY COMPRESSOR
Document Type and Number:
Japanese Patent JP3079663
Kind Code:
B2
Abstract:
PURPOSE: To prevent the reduction of the cooling capacity by suppressing the flow-out of coolant gas from a discharge chamber to a crank chamber, reduce the power loss, and improve the responsiveness in the change of capacity, in the high load operation which requires the large cooling capacity.
CONSTITUTION: A valve 26 for adjusting the relief quantity of coolant gas from a crank chamber 2 to a suction chamber 4 is installed in a bleeding passage 25 for the communication between the crank chamber 2 and the suction chamber 4. A fixed throttle valve 28 is installed in an air feeding passage 27 for the communication between a discharge chamber 5 and the crank chamber 2, and a differential pressure valve 32 which closes the air feeding passage 27 when the relation between the discharge pressure Pd and the crank chamber pressure Pc is in the relation of Pc&Gt Pd is installed on the discharge chamber 5 side from the arrangement position of the fixed throttle valve 28.
Inventors:
Chuichi Kawamura
Yoshihiro Fujisawa
Masafumi Ito
Yoshihiro Fujisawa
Masafumi Ito
Application Number:
JP20096191A
Publication Date:
August 21, 2000
Filing Date:
August 09, 1991
Export Citation:
Assignee:
Toyota Industries Corporation
International Classes:
F04B27/08; F04B27/10; F04B27/14; F04B27/18; F04B49/00; (IPC1-7): F04B27/08; F04B27/14; F04B49/00
Domestic Patent References:
| JP39087A |
Attorney, Agent or Firm:
Hironobu Onda