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External hydraulic pump for motor vehicle transmission

  • US 20080279701A1
  • Filed: 05/05/2008
  • Published: 11/13/2008
  • Est. Priority Date: 05/08/2007
  • Status: Abandoned Application
First Claim
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1. In a motor vehicle having an engine, an electrical system including a source of electrical energy, a transmission and a torque converter, said transmission and torque converter being operated and lubricated by pressurized hydraulic fluid, an electrically operated pump located externally of said transmission and torque converter for supplying said pressurized hydraulic fluid to said transmission and torque converter as required for proper operation and lubrication, the hydraulic circuit for said electric pump including a storage tank of sufficient fluid capacity to operate said transmission and torque converter, means for delivering said fluid from said electric pump to said transmission and torque converter, means for returning said fluid from said transmission and torque converter to a heat exchanger to cool said fluid, and means for returning said fluid from said heat exchanger to said storage tank for recirculation to said electric pump and through said transmission and torque converter.

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