US Patent 7878162 System to control exhaust gas temperature

Patent 7878162 was granted and assigned to Caterpillar Inc. on February, 2011 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Caterpillar Inc.

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7878162

Date of Patent

February 1, 2011

Patent Application Number

11443085

Date Filed

May 31, 2006

Patent Primary Examiner

‌

Ching Chang

Patent abstract

A variable valve actuation system is disclosed for providing exhaust to at least one component downstream of an engine. The system includes a supply of low pressure fluid, an engine fluid sump, and an exhaust valve disposed in an engine cylinder. The system also includes a hydraulic actuation system operably connected to the exhaust valve of the engine cylinder and a braking control valve operably connected to the hydraulic actuation system. The system further includes a device for accumulating fluid and a device for fluidly coupling the hydraulic actuation system to the accumulating device.