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:
Aug. 27, 2002
Filed:
Nov. 07, 2000
Shigemori Onuki, Kawasaki, JP;
Isuzu Motors Limited, Tokyo, JP;
Abstract
A multi-stage transmission ( ) of which gears do not rattle when an engine ( ) is idling. The multi-stage transmission ( ) is equipped with a splitter ( ) that has a neutral position (N). The splitter ( ) is located between a clutch ( ) and a main transmission ( ). A drive power from the engine ( ) is not transmitted to the main transmission when the splitter ( ) is in the neutral position. Thus, a counter shaft ( ) in the transmission ( ) does not rotate, and the gears in the transmission ( ) do not rattle. The splitter ( ) is shifted to a high or low gear (H or L) after a predetermined interval (tint) so that the gears rotate and lubrication oil is caused to splash. When the splitter ( ) is in the neutral position, the lubrication oil is not fed to shaft supports (bearings) in the transmission ( ). The interval period is determined from temperature of the lubrication oil.