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:
Feb. 13, 2007
Filed:
Dec. 07, 2001
YE Tian, Bloomington, IL (US);
Scott Leman, Eureka, IL (US);
Xinshuang Nan, Bloomington, IL (US);
Lifeng Wang, Normal, IL (US);
Jianyuan Yang, Bloomington, IL (US);
Ye Tian, Bloomington, IL (US);
Scott Leman, Eureka, IL (US);
Xinshuang Nan, Bloomington, IL (US);
Lifeng Wang, Normal, IL (US);
Jianyuan Yang, Bloomington, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
The present invention relates to engines having multiple hydraulic devices. For instance a multi-cylinder diesel engine might include both an a fuel injector and an engine compression release brake. Traditionally, each of these hydraulic devices has been controlled by an individual actuator control valve. However, engineers have learned that decreasing the number of engine components can increase engine robustness. In addition, engineers have learned that de-coupling fluid pressure to the needle valve member hydraulic surface from fluid pressure lines to other injector components can result in greater control of the injector. Therefore, the present invention utilizes a single actuator control valve to control both hydraulic devices for an engine cylinder and to provide independent control of fluid pressure to the needle valve member closing hydraulic surface.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile