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:
Nov. 25, 1997
Filed:
Jun. 06, 1996
Jaeduk Jang, Kyungki-do, KR;
Hyundai Motor Company, , KR;
Abstract
A pressure regulating portion having a pressure regulating valve regulates hydraulic pressure fed from a hydraulic pump and a shift control part having a manual valve and a shift control valve feeds hydraulic pressure fed from the pressure regulating portion in response to each shift mode. A pressure control portion controls hydraulic pressure to be proper to each shift mode. The pressure control part includes first and second pressure control solenoid valves, and first and second pressure control valves and an N-R control valve. A pressure dispensing part dispenses hydraulic pressure fed from the shift control part and the pressure control part to first, second, third, fourth and fifth friction members. A switch valve feeds selectively hydraulic pressure fed from the second pressure control valve to the first and fourth friction members. A pressure damping member is disposed on a line connected to the third friction member which is applied in third and fourth speeds of a drive 'D' range. A first release pressure retarding member is disposed on a release pressure line of the fifth friction member and a second release pressure retarding member is disposed on a line connecting the first pressure control valve to the first-to-second speed shift valve.