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:
Mar. 13, 2001
Filed:
Oct. 25, 1999
Hideki Kanenobu, Ashiya, JP;
Jiro Shibata, Amagasaki, JP;
Kanzaki Kokyukoki Mfg. Co., , JP;
Abstract
In a vehicle wherein a supplementary speed change mechanism (,) having selectively operable two fluid-operated clutches (,F,,R;,L,,H) and a main speed change mechanism (,) having selectively operable plural fluid-operated clutches (,) are connected in series, and wherein fluid pressure applied to the clutches of supplementary speed change mechanism is once reduced in response to the shifting operation of main speed change mechanism, a flow control valve (,) is connected to an output flow path (,) of a pump (,) for dividing its inflow into a constant flow and a surplus flow. A flow divider valve (,A) is provided for dividing the constant flow into two flows of a constant ratio one of which is supplied to the clutches of main speed change mechanism and the other of which is supplied to the clutches of supplementary speed change mechanism. The surplus flow is used as lubricant supplied to the clutches of supplementary speed change mechanism. In another embodiment employed in a vehicle comprising a supplementary speed change mechanism (,) having selectively operable two fluid-operated clutches (,F,,R) each of which is selectively brought into a slippingly engaged condition by a pressure-reducing valve (,), fluid relieved from a relief valve (,) for determining fluid pressure applied to another fluid-operated device (,) is joined to lubricant for the cluthes.