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:
Jun. 29, 2010
Filed:
Jan. 05, 2001
Hiroyuki Yamada, Hitachinaka, JP;
Atsuji Saito, Hitachinaka, JP;
Masayoshi Kotaki, Hitachinaka, JP;
Hiroshi Odakura, Hitachiota, JP;
Masami Abe, Hitachi, JP;
Hiroyuki Yamada, Hitachinaka, JP;
Atsuji Saito, Hitachinaka, JP;
Masayoshi Kotaki, Hitachinaka, JP;
Hiroshi Odakura, Hitachiota, JP;
Masami Abe, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Car Engineering Co., Ltd., Hitachinaka-shi, JP;
Abstract
A fluid pump has a cylinder supporting a plunger and a pump housing formed with dissimilar metals. A pressing mechanism presses the cylinder and the pump housing relative to each other so that a pressurizing chamber is sealed through a pressing surface between the pump housing and the cylinder. The number of seal points can be reduce, and a reduction in reliability can be eliminated while realizing a reduction in weight of the pump housing and a reduction in cost due to increase in cutting capability, by using a soft material such as an aluminum alloy for the pump housing.