专利名称：Hydraulic control system for internal
combustion engine
发明人：Keiji Hisahara,Toshiro Ichikawa,Seiji
Suga,Osamu Fujita,Takanori Sawada
申请号：US11588246申请日：20061027
公开号：US20070095316A1公开日：20070503
专利附图：
摘要：A hydraulic control system for an internal combustion engine, includes a drivenmechanism driven by hydraulic pressure fed through a flowing passage change-over
valve. The flowing passage change-over valve includes a valve body formed with aplurality of ports which are respectively communicated with the supply passage and theoil passage, and a spool valve body slidably disposed in the valve body to open and closethe plurality of ports, the ports including a supplying port communicated with thesupplying passage. The maximum cross-sectional area of the supplying port is larger thana minimum cross-sectional area of the supplying passage. The flowing passage change-over valve is supplied with electric current to heat hydraulic fluid kept in the flowingpassage change-over valve so as to lower a viscosity of the hydraulic fluid.
申请人：Keiji Hisahara,Toshiro Ichikawa,Seiji Suga,Osamu Fujita,Takanori Sawada
地址：Kanagawa JP,Kanagawa JP,Kanagawa JP,Kanagawa JP,Kanagawa JP
国籍：JP,JP,JP,JP,JP
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