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:
Mar. 20, 1990
Filed:
Nov. 25, 1988
Akira Takami, Himeji, JP;
Toshiyuki Takahara, Himeji, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A rotating type intake and discharge apparatus comprises an annular rotary cylinder which is provided with a plurality of cylinder slits formed at its inner circumferential portion in the radial direction and is disposed in a housing so as to be rotatable on a first imaginary cycle, a rotary piston rotatably supported in and by the housing, which comprises piston rollers in the number one-half of that of the cylinder slits, which are arranged on a second imaginary circle having a diameter one-half as large as the first imaginary circle and in internally contact with the same and a center roller disposed near the piston rollers, the piston rollers being capable of revolving on the second imaginary circle; a flow path wall formed by a part of the housing so as to have a side plane which has the same common center as the first imaginary circle and extends along the inner side of the locus of rotation of the rotary cylinder, and a side plane which has the same common center as the second imaginary circle and extends along the outer side of the locus of rotation of the rotary piston; and a pair of intake and discharge ports formed in the housing.