Pick-up tube for hydraulically-actuated valve deactivation,申请号US20010956358-传众专利搜索

Pick-up tube for hydraulically-actuated valve deactivation

申请公布号：US6513480(B1)

申请号：US20010956358

申请日期：2001.09.20

申请公布日期：2003.02.04

申请人：

GENERAL MOTORS CORPORATION

发明人：ALBERTSON WILLIAM CONRAD;BAKER RODNEY E.

分类号：F01L9/02;F01L13/00;F01M11/02;(IPC1-7):F02B77/00

主分类号：F01L9/02

摘要：An engine assembly includes an engine block with a laterally extending oil supply gallery formed therethrough. The engine block includes an aperture formed in fluid communication with the oil supply gallery. The hydraulically-actuated valve deactivation system is positioned in fluid communication with the aperture for receiving pressurized oil from the oil supply gallery. A pick-up tube is positioned within the aperture and has a distal end protruding vertically downward into the oil supply gallery to minimize the amount of air in the oil which is communicated to the hydraulically-actuated valve deactivation system. This prevents delay of valve deactivation after engine start-up as oil fills the oil supply gallery and displaces air from the oil supply gallery.