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:
May. 23, 2006
Filed:
Jan. 17, 2001
Shigetomi Kumon, Ehime, JP;
Shigetomi Kumon, Ehime, JP;
Asahi Corporation, Ehime, JP;
Abstract
An oil-hydraulic vehicle comprising (i) at least one oil-hydraulic pumpdriven by an engine E, an input shaft of said oil-hydraulic pump being directly coupled with a crankshaft C of the engine, (ii) at least one oil-hydraulic motorto drive at least one wheelin both forward and backward directions, (iii) an oil-hydraulic circuitto connect said oil-hydraulic pumpand said oil-hydraulic motor, and (iv) at least one flow control valveprovided between said at least one oil-hydraulic pumpand said at least one oil-hydraulic motor. Said at least one flow control valvehas (i) a first changeover position where the valvereturns the oil, which is fed from said oil-hydraulic pumpto the valve, to said oil-hydraulic pump, (ii) a second changeover position where the valvefeeds the oil, which is fed from said oil-hydraulic pumpto the valve, to an inlet of said oil-hydraulic motor, and (iii) a third changeover position where the valvefeeds the oil, which is fed from said oil-hydraulic pumpto the valve, to an outlet of said oil-hydraulic motor