Vane pump
A vane pump, pump cavity technology, applied in the direction of pumps, pump components, rotary piston pumps, etc., can solve problems such as vane damage
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[0031] The invention is described below with respect to the illustrated embodiments, figure 1 , figure 2 The vane pump 1 according to the present invention is shown, and the vane pump 1 is fixed to the side of an engine of an unillustrated automobile to generate a negative pressure to a force multiplying device of an unillustrated brake device.
[0032] This vane pump 1 is provided with: a casing 2 formed with a substantially circular pump chamber 2A, a rotor 3 rotated by a driving force of an engine at a position eccentric with respect to the center of the pump chamber 2A, and The vane 4 that divides the pump chamber 2A into a plurality of spaces, and the cover 5 that closes the pump chamber 2A.
[0033] On the above-mentioned casing 2, an air intake passage 6 communicating with the force-multiplier device of the above-mentioned brake is respectively provided above the pump chamber 2A to attract gas from the force-double device, and an air intake channel 6 is provided below...
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