Scroll compressor with reverse rotation speed limiter

Details Scroll compressor with reverse rotation speed limiter Scroll compressor with reverse rotation speed limiter

1988-12-16

1991-04-09

Smith, Leonard E.

Pumps

Condition responsive control of pump drive motor

In response to pump speed

417 45, 417410, 318374, 318758, F04B 4900

Patent

active

050060457

ABSTRACT:
Here is disclosed an air conditioner comprising a scroll type compressor and a brushless DC motor having a rotor provided with a permanent magnet and a stator provided with a sensor adapted to detect a relative position of said rotor and said stator. Here is additionally disclosed an air conditioner in which the rotor of the brushless DC motor comprises a permanent magnet basically made of rare earth elements inclusive of yttrium, transition metal and boron and a driving circuit for the motor includes a braking circuit adapted to excite coils of the motor to thereby reduce reverse rotation of the rotor.

REFERENCES:
patent: 4558077 (1985-12-01), Gray
patent: 4594858 (1986-06-01), Shaw
patent: 4606707 (1986-08-01), Kumata
patent: 4667480 (1987-05-01), Bessler
patent: 4726738 (1988-02-01), Nakamura et al.
patent: 4749923 (1988-06-01), Chieng
patent: 4765848 (1988-08-01), Mohri et al.

Affiliated with

Also associated with

Rating

Scroll compressor with reverse rotation speed limiter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Scroll compressor with reverse rotation speed limiter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scroll compressor with reverse rotation speed limiter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2031268