Electronic expansion valve without pressure sensor reading

Details Electronic expansion valve without pressure sensor reading Electronic expansion valve without pressure sensor reading

1999-03-26

2000-11-21

Tanner, Harry B.

Refrigeration

Automatic control

Refrigeration producer

62211, 62225, F25B 4104

Patent

active

061486280

ABSTRACT:
An system and process for controlling an electronic exchange valve for an transport refrigeration system evaporator in the absence of a evaporator outlet pressure transducer reading is disclosed. The process includes monitoring for the absence of reliable evaporator outlet pressure readings, monitoring the supply air temperature, and supplying the supply air temperature to a processor within a controller for use in an algorithm so as to approximate the saturation reference temperature and superheat levels to derive the necessary control signals for the EXV.

REFERENCES:
patent: 4134272 (1979-01-01), Reimann
patent: 4735055 (1988-04-01), Taylor et al.
patent: 4745767 (1988-05-01), Ohya et al.
patent: 4903495 (1990-02-01), Howland et al.
patent: 5067556 (1991-11-01), Fudono et al.
patent: 5131237 (1992-07-01), Valbjorn
patent: 5182920 (1993-02-01), Matsuoka et al.
patent: 5291745 (1994-03-01), Hanson
patent: 5463876 (1995-11-01), Bessler et al.
patent: 5546756 (1996-08-01), Ali
patent: 5557938 (1996-09-01), Hanson 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

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