The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 21, 2015
Filed:
May. 31, 2011
Tsutomu Ishikawa, Isesaki, JP;
Satoshi Terauchi, Isesaki, JP;
Tsutomu Ishikawa, Isesaki, JP;
Satoshi Terauchi, Isesaki, JP;
Sanden Corporation, Gunma, JP;
Abstract
In a swash plate type variable capacity compressor that changes a stroke of a piston by controlling the pressure of a crank chamber (), lubrication oil contained in refrigerant gas is maximally prevented from being circulated outside the compressor. Some of discharged refrigerant gas in a discharge chamber () flows into the crank chamber () through a communication passage () (and) and a control valve (), while some of the discharged refrigerant gas flows out to a suction chamber () from the crank chamber () through a second communication passage () and an orifice (), and the pressure of the crank chamber () is controlled through a balance between an inflow amount and an outflow amount. Oil storage chamber () extends downstream of the control valve () on the first communication passage () to separate oil and store the separated oil. Oil return passage () returns the oil stored in the oil storage chamber () to the crank chamber ().