MECHANICAL ROUGH-VACUUM PUMP Russian patent published in 1997 - IPC

Abstract RU 2088806 C1

FIELD: vacuum engineering. SUBSTANCE: housing of the pump has two cylindrical bores wherein two displacers are received. The displacers are pivotally mounted on the axles. The shaft of an electric motor is provided with a crank whereto one ends of two levers are pivotally connected. The other ends of the levers are pivotally connected with the displacers. EFFECT: enhanced efficiency. 2 cl, 7 dwg

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RU 2 088 806 C1

Authors

Dmitruk M.I.

Semashko N.N.

Dates

1997-08-27—Published

1995-01-12—Filed