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:
Jan. 14, 2014
Filed:
May. 16, 2012
Shuhei Oe, Nukata-gun, JP;
Kuniaki Oka, Nishio, JP;
Makoto Otsubo, Anjo, JP;
Jun Yamada, Okazaki, JP;
Kenichi Nara, Nagoya, JP;
Seiichiro Washino, Nagoya, JP;
Shuhei Oe, Nukata-gun, JP;
Kuniaki Oka, Nishio, JP;
Makoto Otsubo, Anjo, JP;
Jun Yamada, Okazaki, JP;
Kenichi Nara, Nagoya, JP;
Seiichiro Washino, Nagoya, JP;
Denso Corporation, Kariya, JP;
Abstract
A fluid brake device has a case defining a fluid chamber. Magneto-rheological fluid is contained in the fluid chamber. A brake member is rotatably supported on the case and receives a braking torque according to the viscosity of the magneto-rheological fluid. The device has a movable member driven by a thermo-sensitive wax so that a volume of the fluid chamber is increased as the temperature in the fluid chamber is increased. The movable member is driven to maintain a pressure in the fluid chamber within an allowable range when the temperature in the fluid chamber is changed.