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. 24, 2010
Tetsuhide Yokoyama, Tokyo, JP;
Raito Kawamura, Tokyo, JP;
Kei Sasaki, Tokyo, JP;
Shin Sekiya, Tokyo, JP;
Taro Kato, Tokyo, JP;
Masao Tani, Tokyo, JP;
Atsuyoshi Fukaya, Tokyo, JP;
Takeshi Fushiki, Tokyo, JP;
Tetsuhide Yokoyama, Tokyo, JP;
Raito Kawamura, Tokyo, JP;
Kei Sasaki, Tokyo, JP;
Shin Sekiya, Tokyo, JP;
Taro Kato, Tokyo, JP;
Masao Tani, Tokyo, JP;
Atsuyoshi Fukaya, Tokyo, JP;
Takeshi Fushiki, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A device that enhances compressor efficiency by reducing pressure losses in a discharge muffler space into which is discharged a refrigerant compressed by a compression unit. A low-stage discharge muffler space is formed in the shape of a ring around a drive shaft. In the low-stage discharge muffler space, a communication port flow guide is provided so as to cover a predetermined area of an opening of a communication port from a side of a flow path in a reverse direction out of two flow paths in different directions around the drive shaft from a discharge port through which is discharged the refrigerant compressed by a low-stage compression unit to the communication port through which the refrigerant flows out. The communication port flow guide transforms a direction of a flow into a direction of a connecting flow path.