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:
Feb. 15, 1994
Filed:
Apr. 07, 1992
Yasushi Yamanaka, Nakashima, JP;
Nobuharu Kakehashi, Anjo, JP;
Shigeo Numazawa, Nagoya, JP;
Yasuyuki Nishi, Kariya, JP;
Hiroshi Kishita, Kariya, JP;
Kideki Suzuki, Chita, JP;
Nippondenso Co., Ltd., Kariya, JP;
Abstract
In a method for calculating torque for a variable capacity type compressor provided in a refrigeration circuit and driven by an engine to compress and discharge refrigerant to be circulated through a heat exchanger in the refrigerant circuit, a rotational speed of the compressor is calculated, a quantity of refrigerant discharged from the compressor and pressure of refrigerant in high-pressure side are calculated, a capacity of the discharged refrigerant during operation of the compressor is calculated based on the calculated discharged refrigerant quantity and the calculated rotational speed, and the torque is calculated based on the calculated refrigerant pressure and the calculated capacity.