Vacuum pump for vehicle motors and one-way valve for said vacuum pump
A technology of vacuum pumps and check valves, applied in parts of pumping devices for elastic fluids, rotary piston type/oscillating piston type pump parts, pumps, etc., to prevent fatigue stress, regular power absorption results, and power absorption The result is more effective
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[0045] In the figures, a vacuum pump according to the invention is indicated with reference number 1 .
[0046] The vacuum pump 1 includes a stator 2, a chamber 3 is defined in the stator 2, and vanes 4 are rotatably installed in the chamber 3 ( figure 2 ). The vanes 4 are provided with opposite ends in sealing contact with the inner surface of the stator 2 to generate the desired low pressure.
[0047] The stator 2 comprises openings for the entry of air and oil (not shown as this is conventional per se and / or available in any convenient way to a person skilled in the art) and a closure cover 5 . From figure 2 It can be seen that, in the particular example shown therein, a first discharge opening 30 and a second discharge opening 50 are formed on the side surface 10 of the stator 2 defined by the cover 5 . The two discharge openings 30 and 50 are formed adjacent to each other and are different in size. Specifically, the first discharge opening 30 is larger in size than ...
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