| 摘要 |
<p>A pressure switch for hydraulic pump of power steering apparatus is provided to control the number of engine rotation according to the inner pressure of engine when the pressure inside the pump inside rises. A pressure switch for hydraulic pump of power steering apparatus comprises a main body(20) of hydraulic pump, a space part(22) connected to the pump inside and pressure port, a plunger(30) which is formed in the space part and flows according to the size of the fluid pressure, a switch device(40) turned on/off with plunger, and a spring(50) supporting the plunger. A variable resistance(60) is connected to the lower part of the terminal comprising the switch equipment. A contact point(38) is formed at the upper one side of plunger.</p> |
