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. 10, 1995
Filed:
May. 14, 1993
Kenjiro Fujita, Kusatsu, JP;
Akihiro Kondo, Kyoto, JP;
Toyoji Ohnishi, Kameoka, JP;
Yoshio Hasegawa, Kyoto, JP;
Mitsuru Yuge, Kyoto, JP;
Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A fluid pressure control device is equipped with a valve body which has an input port connected to a hydraulic fluid source, an output port which is connected to a pressure chamber of a clutch of an automatic transmission, and a discharge port. It further includes a solenoid valve which is incorporated in the valve body and has a valve spool designed to selectively connect the output port to the input port or the discharge port. A discharge passage extends from the discharge port of the valve body, the discharge passage having a discharge port which is positioned at a higher level than the liquid level of the oil pan of the automatic transmission. Finally, a reed valve acts to close the discharge port of the discharge passage to maintain fluid at the aforementioned higher level, and allows the discharge of the hydraulic fluid only through the discharge port.