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:
Sep. 07, 1999
Filed:
Feb. 25, 1998
Takahiro Moroi, Kariya, JP;
Takashi Ban, Kariya, JP;
Nobuaki Hoshino, Kariya, JP;
Masahiko Okada, Kariya, JP;
Kenji Takenaka, Kariya, JP;
Kabushiki Kaisha Toyoda Jidoshokki Seisakusho, Kariya, JP;
Abstract
A viscous fluid type heater includes a heating chamber for holding viscous fluid and a rotor located in the heating chamber. A holding chamber is located below the heating chamber to communicate with the heating chamber. A plunger, which is actuated by a solenoid, is movable between a forward position for maximizing the volume of the holding chamber and a rearward position for minimizing the volume of the holding chamber. When the plunger is at the forward position, viscous fluid is discharged from the heating chamber to the holding chamber. When the plunger is at the rearward position, viscous fluid is supplied from the holding chamber to the heating chamber. This allows the load of the heater to be removed or reinstated selectively. In an engine-driven vehicle, the engine can thus started without being hindered by the heater.