Extended range thruster system and method of determining thrust

Details Extended range thruster system and method of determining thrust Extended range thruster system and method of determining thrust

1995-09-15

1998-05-12

Lopez, F. Daniel

Power plants

Pressure fluid source and motor

Pump means moves motive fluid from one chamber to an...

60474, 29888021, 415912, 416146R, F16D 3102

Patent

active

057492247

ABSTRACT:
An electrohydraulic actuator has a housing divided into pump and cylinder portions respectively containing a centrifugal impeller driven through a hub by an externally mounted motor, and a pushrod actuated by a piston and arranged to advance the piston and pushrod to deliver thrust when the motor is operated. The major parts except the motor and the pushrod are castings and only one size castings are required for a large range of thrust capacities. The impeller casting is machined to a diameter suitable for a desired thrust and a motor of required speed and horsepower for that thrust capacity is selected to drive the impeller.

REFERENCES:
patent: 1993612 (1935-03-01), Lum
patent: 2277836 (1942-03-01), Arnold
patent: 3543368 (1970-12-01), Marlow
patent: 3593522 (1971-07-01), Angert et al.
patent: 3891025 (1975-06-01), Bollig et al.
patent: 4055947 (1977-11-01), Gongwer
patent: 4196797 (1980-04-01), Taylor
Gemco Industrial Brakes Catalog ("Industrial Brake Products Electro-Thrust Shoe Brakes"), May 1994, 13 pgs.

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