Direct replacement variable speed blower motor

Details Direct replacement variable speed blower motor Direct replacement variable speed blower motor

1996-04-01

1998-10-06

Shoop, Jr., William M.

Electricity: motive power systems

Plural, diverse or diversely controlled electric motors

Starting and/or stopping

318105, 318106, 318107, 318108, H02P 146

Patent

active

058181946

ABSTRACT:
A blower motor unit having a variable speed motor and that is suitable for direct, drop-in replacement in a residential HVAC (heating, ventilation, and air conditioning) system that employs a PSC motor. The blower motor unit is provided with a neutral input and two hot AC line connections, one for connection to the heating power source and the other to the cooling power source. The blower motor unit senses which of the inputs is energized by sensing either voltage or current on at least one of the inputs, selects one of at least two reference signals in accordance with which input is energized, and presents the control input of the replacement variable speed motor with the selected reference signal, thereby controlling the speed of the variable speed motor. This motor control unit, and the method by which it selects one of two signals for application to a control input of a motor, are also independently useful to control any type of motor having at least two modes of operation.

REFERENCES:
patent: 4227128 (1980-10-01), Cockroft et al.
patent: 4357988 (1982-11-01), Hudson et al.
patent: 4484122 (1984-11-01), Day et al.
patent: 4554496 (1985-11-01), Rudich, Jr. et al.
patent: 4585163 (1986-04-01), Cooley et al.
patent: 4644238 (1987-02-01), Hirosaki
patent: 4707646 (1987-11-01), Thompson et al.
patent: 5184026 (1993-02-01), O Breartuin
patent: 5197667 (1993-03-01), Bowsky et al.
patent: 5397970 (1995-03-01), Rowlette et al.
patent: 5410230 (1995-04-01), Bessler et al.
patent: 5418438 (1995-05-01), Hollenbeck
patent: 5448141 (1995-09-01), Kelley et al.
patent: 5492273 (1996-02-01), Shah

Affiliated with

Also associated with

Rating

Direct replacement variable speed blower motor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Direct replacement variable speed blower motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Direct replacement variable speed blower motor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-82007