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. 06, 1998
Filed:
Dec. 31, 1996
Karsten Paeth, Ebern, DE;
Helmut Rugheimer, Ebern-Gemund, DE;
Fahrzeugtechnik Ebern GmbH, , DE;
Abstract
A method of suppressing vibrations of an actuation element of a hydraulic force transmission apparatus, especially a hydraulic clutch actuation system in an automobile, and an auxiliary vibrator for carrying out the method, are disclosed. The force transmission apparatus possesses a transmitter cylinder connected to the actuation element, and also a receiver cylinder connected to that cylinder by a liquid column, by which receiver cylinder a low-frequency excitation vibration is transmitted to the liquid column, which propagates in the latter as a low-frequency pressure pulsation. According to the invention, the low-frequency pressure pulsation excites the auxiliary vibrator provided in the liquid column in such a manner that this vibrator vibrates with its intrinsic frequency, which is higher than the frequency of the low-frequency pressure pulsation, so that the auxiliary vibrator induces, in the liquid column, a higher-frequency pressure pulsation, which the vibratory system consisting of transmitter cylinder and actuation element cannot follow. The auxiliary vibrator possesses a freely vibrating diaphragm, which is clamped in a housing in order to form its base and/or top.