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:
Nov. 09, 2010
Filed:
Oct. 31, 2007
Hung M. Pham, Dayton, OH (US);
Jean-luc M. Caillat, Dayton, OH (US);
Ronald L. Van Hoose, Huber Heights, OH (US);
Hung M. Pham, Dayton, OH (US);
Jean-Luc M. Caillat, Dayton, OH (US);
Ronald L. Van Hoose, Huber Heights, OH (US);
Emerson Climate Technologies, Inc., Sidney, OH (US);
Abstract
A method includes operating a compressor with a vapor injection system and selectively supplying vapor to the compressor during compressor operation through actuation of a first control valve. The method further includes closing the first control valve to prevent vapor from entering the compressor for a first predetermined time period leading up to stopping operation of the compressor and stopping the compressor with the first control valve in the closed position. The compressor is started with the first control valve in the closed position and the first control valve is maintained in the closed position for a second predetermined time period following starting of the compressor. The first control valve is opened to supply vapor to the compressor after the second predetermined time period.