High engine coolant temperature control

Details High engine coolant temperature control High engine coolant temperature control

1999-03-26

2000-11-21

Tanner, Harry B.

Refrigeration

Automatic control

Refrigeration producer

62230, 623231, F25B 4104

Patent

active

061486272

ABSTRACT:
An system and method for monitoring and limiting high power and overheating engine conditions in a transport refrigeration unit is disclosed. The system provides a microprocessor control which monitor the engine coolant temperature to determine whether it exceeds a predetermined limit. If the engine coolant temperature exceeds that limit, the control sends a control signal which restricts or closes the suction modulation valve of the transport refrigeration system, restricting the mass flow rate of the system and thereby reducing the power draw on the engine. The system further provides a continued monitoring process for further restricting or closing the suction modulation valve in the event of continued high engine coolant temperatures, and for gradually opening the suction modulation valve and increasing the maximum current draw on the engine once the engine coolant temperature sinks below its predetermined limit.

REFERENCES:
patent: 3220211 (1965-11-01), Nordquest
patent: 4134272 (1979-01-01), Reimann
patent: 4735055 (1988-04-01), Taylor et al.
patent: 4903495 (1990-02-01), Howland et al.
patent: 5067556 (1991-11-01), Fudono et al.
patent: 5291745 (1994-03-01), Hanson
patent: 5546756 (1996-08-01), Ali
patent: 5557938 (1996-09-01), Hanson et al.
patent: 5572879 (1996-11-01), Harrington et al.
patent: 5598718 (1997-02-01), Freund et al.
patent: 5625276 (1997-04-01), Scott et al.
patent: 5626027 (1997-05-01), Dormer et al.
patent: 5628205 (1997-05-01), Rockenfeller et al.
patent: 5661378 (1997-08-01), Hapeman
patent: 5715704 (1998-02-01), Cholkeri et al.
patent: 5771703 (1998-06-01), Rajendran
patent: 5780998 (1998-06-01), Scott et al.
patent: 5798577 (1998-08-01), Lesesky et al.
patent: 5867998 (1999-02-01), Guertin
patent: 5907957 (1999-06-01), Lee et al.

Affiliated with

Also associated with

Rating

High engine coolant temperature control does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High engine coolant temperature control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High engine coolant temperature control will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1247115