Vacuum pump with planetary gear accelerator

Details Vacuum pump with planetary gear accelerator Vacuum pump with planetary gear accelerator

1995-05-26

1996-12-31

Vrablik, John J.

Rotary expansible chamber devices

Positively actuated vane

418270, F04C 18344, F04C 2502

Patent

active

055888216

ABSTRACT:
A vacuum pump with a planetary gear accelerator which comprises: a pump chamber formed in a pump housing; a pump rotor accommodated in said pump chamber; a rotor shaft attached to said pump rotor; a sun gear formed on this rotor shaft; and planetary gears arranged so as to constitute a planetary gear device together with said sun gear and connected to an input shaft, said planetary gear device having a gear ratio which is set so that the rotation of said pump rotor is accelerated relative to the rotation of said input shaft. Thus, the vacuum properties of the engine at times of low-speed rotation are stabilized, and high vacuum properties are guaranteed. Moreover, in addition to seeking a more compact and light-weight design, the intensiveness and standardization of vacuum pumps meeting the maximum performance requirements are realized.

REFERENCES:
patent: 2344078 (1944-03-01), Brissonet et al.
patent: 5063904 (1991-11-01), Winkelmann et al.

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