Linear compressor or pump with integral motor

Details Linear compressor or pump with integral motor Linear compressor or pump with integral motor

1997-04-16

2000-01-18

Thorpe, Timothy S.

Pumps

Successive stages

Reciprocating rigid stages

417545, 4175551, F04B 300

Patent

active

060152702

ABSTRACT:
A two stage compressor or pump with integral electronically controlled multiphase linear motor incorporates a cup shaped moving piston as a stator. The linear motor body has an intake head with valve fitted at the end adjacent to the closed end of the cup shaped piston. A discharge head with a central discharge tube extending into the hollow center of the cup shaped moving piston is fitted to the opposite end of the motor body. As the piston reciprocates it draws the working fluid in through the intake valve, compresses and transfers it through an interstage valve in the closed end of the moving piston into a second variable volume chamber formed by the inside of the cup shaped piston and the discharge tube which acts as a fixed piston, and then further compresses and transfers it out through a valve in the discharge tube. While the design is particularly well suited for use as a compressor in air conditioning and refrigeration systems, it can also be used as a pump.

REFERENCES:
patent: 4787823 (1988-11-01), Hultman
patent: 4832578 (1989-05-01), Putt

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