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:
Aug. 16, 1988
Filed:
Nov. 17, 1986
Shinichi Matsui, Yokosuka, JP;
Masaru Sugino, Fujisawa, JP;
Nissan Motor Company, Limited, Yokohama, JP;
Abstract
An apparatus for supporting a vibrating object (, e.g., a power unit of a vehicle) which can reduce a plurality of vibrations transmitted therethrough by changing the resonant frequency of a dynamic fluid damper constituted by the apparatus according to a frequency change of the vibrations. The apparatus comprises: (a) a first fluid chamber located on the vibrating object and having at least one elastic wall thereof; (b) a second fluid chamber located on another object and having at least one elastic wall thereof; (c) a partitioning member disposed between the first and second fluid chambers; (d) a plurality of communication passages disposed through the partitioning member in parallel with each other for communicating the first and second chambers; and (e) communication passage open/close envelope which opens or close at least one of the communication passages according to a difference between vibration amplitudes of vibrations transmitted thereinto, whereby a plurality of vibrations transmitted through the apparatus are suppressed.