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. 03, 2004
Filed:
Mar. 27, 2003
Komatsu Ltd., Tokyo, JP;
Abstract
An opening of the variable nozzle of the exhaust turbine supercharger is set to and maintained at the maximum value in the constant operating state when the load is not more than a prespecified load level. The opening is gradually made smaller, when the load is not less than the specified load level, as the load becomes greater. When the load shifts from the high load region to the low load region, the variable nozzle is mere closed or maintained at the original opening, and when the operating state get close to the surging limit, the variable nozzle is more opened. When shifting from the low load region to the high load region, or when sifting from low speed to high speed, the variable nozzle is opened mace, and then closed to return to the constant operating state.