Hideaki Ohnishi

VARIABLE DISPLACEMENT OIL PUMP

Variable capacity pump having a pressure responsive relief valve arrangement

Variable displacement pump, oil jet and lublicating system using variable displacement pump

Variable displacement pump, valve timing control device using the variable displacement pump, and valve timing control system using the variable displacement pump, for use in internal combustion engines

Tandem type trochoid pump and method of assembling the same

Apparatus Having Control Valve and Variable Capacitance Pump and Hydraulic Pressure Circuit of Internal Combustion Engine in which the Same Apparatus is Used

Variable capacity pump

Variable-Capacity Oil Pump and Oil Supply System Using Same

Tandem-Trochoidpumpe und Verfahren zum Montieren derselben

Relief valve apparatus used in oil pump of internal combustion engine, has one of relief holes with maximum opening area, which are sequentially opened