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:
Oct. 26, 1993
Filed:
Dec. 24, 1992
Yuichi Imani, Hamamatsu, JP;
Nippondenso Co., Ltd., Kariya, JP;
Abstract
An air suspension system includes a rotary valve 3 disposed to selectively establish and interrupt communication between an air spring 1 and a plurality of subchambers of an air chamber 2, and a motor 4 by which the rotary valve 3 is rotated. The rotary valve 3 is composed of a hollow outer cylindrical member 21 having openings opened to each subchamber of the air chamber 2, and an inner cylindrical member 22 having air holes. The openings of the outer cylindrical member 21 have different lengths in the direction of rotation of the inner cylindrical member 22. By this arrangement, the number of the subchambers of the air chamber 2, which may be communicated with the primary air chamber 1 through the openings and the air holes, is adjusted in response to angular position of the inner cylindrical member 22.