Two stage pump assembly with mechanical disconnect

Details Two stage pump assembly with mechanical disconnect Two stage pump assembly with mechanical disconnect

1993-04-20

1994-07-05

Bertsch, Richard A.

Pumps

Including disengageable rotary or frangible drive connection

417429, F04B 900

Patent

active

053262328

ABSTRACT:
A two stage main pump has a first pump portion that is drivingly connected to an input shaft and a second pump that is drivingly connectable with the input shaft by a speed sensitive mechanism. The speed sensitive mechanism is urged by a resilient member to connect the second pump portion with the input shaft as well as to a centrifugal flyweight mechanism that is responsive to the rotary speed of the input shaft in order to urge a disconnection of the second pump from the input shaft.

REFERENCES:
patent: 2669933 (1954-02-01), Bayles
patent: 2781727 (1957-02-01), Marshall et al.
patent: 3643434 (1972-02-01), Widmaier
patent: 3754626 (1973-08-01), Heidorn
patent: 3904318 (1975-09-01), Born et al.
patent: 4416588 (1983-11-01), Karliner
patent: 4420289 (1983-12-01), Sihouette
patent: 4553914 (1985-11-01), Noell et al.
patent: 4619592 (1986-10-01), Bender

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