US 11,703,262 B2
Cold generator and refrigerating plant having a cold generator
Frank Vetter, Neustetten (DE)
Assigned to BITZER KUEHLMASCHINENBAU GMBH, Sindelfingen (DE)
Filed by BITZER Kuehlmaschinenbau GmbH, Sindelfingen (DE)
Filed on Mar. 13, 2020, as Appl. No. 16/818,254.
Application 16/818,254 is a continuation of application No. PCT/EP2017/073020, filed on Sep. 13, 2017.
Prior Publication US 2020/0217570 A1, Jul. 9, 2020
Int. Cl. F25B 39/00 (2006.01); F25B 49/02 (2006.01); F25B 39/04 (2006.01)
CPC F25B 49/027 (2013.01) [F25B 39/04 (2013.01); F25B 2339/043 (2013.01); F25B 2339/047 (2013.01); F25B 2400/05 (2013.01); F25B 2400/13 (2013.01); F25B 2600/0261 (2013.01)] 40 Claims
OG exemplary drawing
 
1. A cold generator, comprising a refrigerant circuit with a refrigerant compressor arranged in the refrigerant circuit, a heat-emitting heat exchanger connected to a high-pressure connection of the refrigerant compressor, an expansion member following on from the heat-emitting heat exchanger, and a heat-absorbing heat exchanger following on from the expansion member, which heat-absorbing heat exchanger is in turn connected on the output side to an intake connection of the refrigerant compressor,
wherein the cold generator comprises a heat exchanger unit in which the heat-emitting heat exchanger and the heat-absorbing heat exchanger are integrated, wherein the heat exchanger unit comprises a flow path layer stack which is built up in a stacked construction and has flow path layers arranged successively in a stack direction, wherein, in order to form the heat-emitting heat exchanger in the flow path layer stack, at least one heat-emitting refrigerant flow path and at least one heat-absorbing second heat transport flow path are provided, wherein a second heat transport medium guided in a second heat transport circuit flows or is arranged to flow through the second heat transport flow path, wherein at least one heat-absorbing refrigerant flow path and at least one heat-emitting first heat transport flow path are provided in order to form the heat-absorbing heat exchanger in the flow path layer stack, and wherein a first heat transport medium guided in a first heat transport circuit flows or is arranged to flow through the first heat transport flow path;
wherein the heat-emitting refrigerant flow path and the heat-emitting first heat transport flow path are arranged in a first common flow path layer of the flow path layer stack; and
wherein the heat-absorbing refrigerant flow path and the heat-absorbing second heat transport flow path are arranged in a second common flow path layer of the flow path layer stack.