Back to results
US 2026/0118016 A1Published application
Refrigeration systems and methods
AssigneeHoneywell International Inc.
InventorsMICHAEL PETERSEN, GUSTAVO POTTKER, SAMUEL F. YANA MOTTA, RONALD PETER VOGL, ANKIT SETHI
Life of this patent
Estimating the term…
Abstract
Disclosed are cascaded refrigeration systems, comprising: a plurality of refrigeration units, each refrigeration unit containing a first refrigeration circuit, each first refrigeration circuit comprising an evaporator and a heat exchanger, and a second refrigeration circuit; wherein each first circuit heat exchanger is arranged to transfer heat energy between its respective first refrigeration circuit and the second refrigeration circuit.
Claims11
-10. (canceled)
A cascaded refrigeration system comprising:
- (a) a two or more low temperature self-contained refrigeration circuits each contained in a separate low temperature refrigeration unit, with at least two of said low temperature refrigeration circuits comprising:
- (i) a flammable low temperature refrigerant;
- (ii) a compressor having a horse power rating of about 2 horse power or less;
- and
- (iii) a heat exchanger in which said flammable low temperature refrigerant condenses produce a liquid refrigerant;
- and
- (iv) a suction line heat exchanger connected upstream of said compressor for cooling said liquid refrigerant from said heat exchanger by adding heat to the gas entering the compressor;
- and
- (b) a medium temperature refrigeration circuit comprising a non-flammable medium temperature refrigerant, wherein said medium temperature refrigerant evaporates in said system at a temperature in the range of about −5° C. to about −15° C. by absorbing heat from said low temperature refrigerant in said low temperature refrigeration circuit.
6 more elements
Dependencies are inferred from the claim text.