Gear type oil pump for assisting steering of motor vehicle, has pump body including high pressure output channel configured to form dampening unit that dampens pulsations in high pressure liquid, produced by pinions

摘要

#CMT# #/CMT# The pump has a pump body (6) provided with a central chamber housing two pinions engaging with each other, an opening for aspiring a low pressure liquid and high pressure output channel connected to a user hydraulic circuit. The channel is configured to form a dampening unit that dampens pulsations in a high pressure liquid, produced by the pinions. The channel is constituted of output, vertical, horizontal channels (37, 41, 42) and a groove (39) forming bends of an angle of ninety degree, at respective ends of the sections. #CMT#USE : #/CMT# Used in a electrically driven pump for assisting steering of a motor vehicle (claimed). #CMT#ADVANTAGE : #/CMT# The high pressure output channel is configured to form the dampening unit which dampens pulsations in the high pressure liquid, produced by the pinions, thus reducing the hydraulic and mechanical noise in the pump. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a sectional view of a oil pump. 6 : Pump body 26 : Pinion 37 : Output channel 39 : Groove 41 : Vertical channel 42 : Horizontal channel.