Refrigeration – With indicator or tester – Operatively correlated with automatic control
Patent
1995-02-27
1996-09-24
Tanner, Harry B.
Refrigeration
With indicator or tester
Operatively correlated with automatic control
622283, 622284, 623231, 62239, 62230, F25B 4902
Patent
active
055579388
ABSTRACT:
Methods and apparatus for extending engine operating time, with a given amount of fuel, of an internal combustion engine connected to drive a compressor of a transport refrigeration unit. A fuel level signal is provided in response to the amount of fuel in a fuel tank associated with the internal combustion engine. The operation of the transport refrigeration unit is modified in different predetermined ways at predetermined different values of the fuel level signal, as fuel is consumed, to reduce the rate at which engine fuel is used after each modification. The time that a space being conditioned by the transport refrigeration unit for a given fuel supply is thus extended, maintaining temperature control of the conditioned space over this extended time while sacrificing non-load threatening, incremental degrees of control precision.
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patent: 5197670 (1993-03-01), Hanson et al.
patent: 5201186 (1993-04-01), Hanson
patent: 5222368 (1993-06-01), Hanson
patent: 5454229 (1995-10-01), Hanson et al.
Hanson Jay L.
Herrig Doyle G.
Tanner Harry B.
Thermo King Corporation
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