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.

Date of Patent:
Dec. 30, 2003

Filed:

Dec. 18, 2002
Applicant:
Inventors:

Tsuneo Endoh, Wako, JP;

Kensuke Honma, Wako, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B 5/304 ;
U.S. Cl.
CPC ...
F02B 5/304 ;
Abstract

Rotary type fluid machine includes a casing a rotor and a plurality of vane-piston units U -U which are disposed in a radiate arrangement on the rotor Each of the vane-piston units U -U has a vane sliding in a rotor chamber and a piston placed in abutment against a non-slide side of the vane When it functions as an expanding machine the expansion of a high pressure gas is used to operate the pistons thereby to rotate the rotor via vanes and the expansion of a low pressure gas caused by a pressure reduction in the high pressure gas is used to rotate the rotor via the vanes On the other hand, when it functions as a compressing machine, the rotation of rotor is used to supply a low pressure air to the side of pistons via vanes and further, the pistons are operated by the vanes to convert the low pressure air to the high pressure air. Thus, a rotary type fluid machine having expanding and compressing functions, with the merits belonging to the piston type and the merits belonging to the vane type, can be provided.


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