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:
Jul. 29, 2014
Filed:
May. 24, 2010
Tetsuhide Yokoyama, Tokyo, JP;
Toshihide Koda, Tokyo, JP;
Shin Sekiya, Tokyo, JP;
Kei Sasaki, Tokyo, JP;
Raito Kawamura, Tokyo, JP;
Taro Kato, Tokyo, JP;
Atsuyoshi Fukaya, Tokyo, JP;
Takeshi Fushiki, Tokyo, JP;
Hideaki Maeyama, Tokyo, JP;
Masao Tani, Tokyo, JP;
Tetsuhide Yokoyama, Tokyo, JP;
Toshihide Koda, Tokyo, JP;
Shin Sekiya, Tokyo, JP;
Kei Sasaki, Tokyo, JP;
Raito Kawamura, Tokyo, JP;
Taro Kato, Tokyo, JP;
Atsuyoshi Fukaya, Tokyo, JP;
Takeshi Fushiki, Tokyo, JP;
Hideaki Maeyama, Tokyo, JP;
Masao Tani, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A refrigerant compressor that enhances compressor efficiency by both reducing an amplitude of pressure pulsations and reducing pressure losses in a discharge muffler space into which is discharged a refrigerant compressed at 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 discharge port rear guide is provided in the proximity of a discharge port through which is discharged the refrigerant compressed by a low-stage compression unit. The discharge port rear guide is provided at a flow path in one direction out of two flow paths from the discharge port to a communication port in different directions around the drive shaft, and prevents the refrigerant from flowing in that direction, thereby causing the refrigerant to circulate in a forward direction in the ring-shaped discharge muffler space.