Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
167 words
Refrigeration apparatus, comprising a cooling chamber having a given useful space therein, and a cold generator having a cold air loop connected to said cooling chamber for cooling said given useful space, said cold air loop including compressing means, a heat exchanger disposed downstream of said compressing means and exposed to the ambient air for cooling air drawn from said useful space with a relatively high temperature level almost to the temperture of the ambient air after compression, cooling means downstream of said heat exchanger, expansion means downstream of said cooling means, the air being returned to said useful space after subsequent expansion and corresponding cooling below the lowest temperature level, and an additional heat exchanger for dehumidifying the circulated air current in said loop, said additional heat exchanger including heat exchanger surfaces and means for drying air drawn from said cooling chamber from the upper temperature level with the aid of expanded cold air by means of condensation of absorbed moisture on said heat exchanger surfaces.
Claim 2
Dependent Claim
167 words
Refrigeration apparatus, comprising a cooling chamber having a given useful space therein, and a cold generator having a cold air loop connected to said cooling chamber for cooling said given useful space, said cold air loop including compressing means, a heat exchanger disposed downstream of said compressing means and exposed to the ambient air for cooling air drawn from said useful space with a relatively high temperature level almost to the temperture of the ambient air after compression, cooling means downstream of said heat exchanger, expansion means downstream of said cooling means, the air being returned to said useful space after subsequent expansion and corresponding cooling below the lowest temperature level, and an additional heat exchanger for dehumidifying the circulated air current in said loop, said additional heat exchanger including heat exchanger surfaces and means for drying air drawn from said cooling chamber from the upper temperature level with the aid of expanded cold air by means of condensation of absorbed moisture on said heat exchanger surfaces.
Claim 3
Dependent Claim
31 words
Refrigeration apparatus according to claim 1, wherein said additional heat exchanger is a cross-current plate heat exchanger including vertically disposed plates, a lower end manifold and a drain for melted water.
Claim 4
Dependent Claim
23 words
Refrigeration apparatus according to claim 2, wherein said lower end manifold of said cross-current plate heat exchanger is inclined downward toward said drain.
Claim 5
Dependent Claim
19 words
Refrigeration apparatus according to claim 2, including a heater for defrosting said plates of said cross-current plate heat exchanger.
Claim 6
Dependent Claim
42 words
Refrigeration apparatus according to claim 2, wherein said cross-current plate heat exchanger includes an insulating wall thermally separating said cross-current plate heat exchanger into two compartments, and means for selectively connecting said compartments to said cold air loop carrying the air current.
Claim 7
Dependent Claim
34 words
Refrigeration apparatus according to claim 5, wherein said connecting means are in the form of control flaps for regulating the path of the air currents through said compartments of said cross-current plate heat exchanger.