POWER STEERING PUMP ESTABLISHMENT A COVER PLATE FOR PASSAGEWAY IMPROVE AND CONSTRUCTION PROCESS

摘要

One power steering pump has and is used for the improved cover board in channel and its assembling process, is arranged to reduction noise and vibration and installs a balance channel between 2/2nds low pressure units. There are one power steering pump a cover board (2) to improve for channel, including a cam ring (30), a main body (1), side plate (8), a suction-chamber (10) and the roads Tiao Cha. Cam ring is including being a rotatable rotor and a blade. One driving shaft (50) of body supports is embedded in cam ring. Side plate is inserted between main body and cam ring and is provided with a low pressure porthole and a high pressure port (81). Suction-chamber forms between main body and cam ring and connect with a low-pressure channel (9). Fork road is formed between main body and cam ring by the low pressure porthole of side plate and suction-chamber. Cover board includes the first low pressure unit (20), diffusion protrusion (21), the second low pressure unit (20') and a balance channel. First low pressure unit is installed in suction-chamber opposite. Diffusion protrusion is formed in the center of low pressure unit. Second low pressure unit is formed in the both ends of the first low pressure unit. Balance channel allows the second low pressure unit to be connected with each other.