Condenser with a stack of heat exchanger plates

Abstract

A condenser has a stack of heat exchanger plates that includes at least a first section for condensation of a refrigerant and a second section for supercooling the refrigerant. A refrigerant flow channel and another flow channel for a liquid coolant stream are formed in each of the first and second sections between the heat exchanger plates that are in heat-exchanging relation. The stack of heat exchanger plates is perforated by inflow and outflow channels for the coolant stream and for the refrigerant, which are connected to the at least one flow channel or the other flow channel. The coolant stream can be divided into a coolant main stream and at least one coolant partial stream, a throttle-like device is arranged in the inflow channel to divert the at least one coolant partial stream, and the at least one coolant partial stream is positioned to supercool the refrigerant.

What is claimed is: 
     
         1 . A condenser comprising:
 at least one stack of heat exchanger plates;   at least a first section for condensation of a refrigerant; and   at least a second section for supercooling of the refrigerant,   wherein at least one flow channel for the refrigerant and at least one flow channel for a liquid coolant stream are formed in each of the first and second sections between the heat exchanger plates,   wherein the at least one flow channel for the refrigerant and the least one flow channel for the liquid coolant are in heat-exchanging relation,   wherein the stack of heat exchanger plates are perforated by inflow and outflow channels for the liquid coolant stream and for the refrigerant, the inflow and the outflow channels are connected to the at least one flow channel for the refrigerant and the at least one flow channel for a liquid coolant stream,   wherein the liquid coolant stream is divided into a coolant main stream and at least one coolant partial stream, and   wherein a throttle-like device is arranged in the inflow channel to divert the at least one coolant partial stream, the at least one coolant partial stream positioned to supercool the refrigerant.   
     
     
         2 . The condenser according to  claim 1 , wherein the at least one coolant partial stream is fed back to the inflow channel at least mostly through at least one second flow channel for the liquid coolant stream arranged in the second section. 
     
     
         3 . The condenser according to  claim 1 , wherein the at least one flow channel for the liquid coolant stream arranged in the second section discharges directly in the outflow channel for the coolant. 
     
     
         4 . The condenser according to  claim 1 , wherein the at least one coolant partial stream discharges directly in the outflow channel for the coolant. 
     
     
         5 . The condenser according to  claim 1 , further comprising a cutoff arranged in the outflow channel for the coolant stream, the cutoff essentially separates an area from this outflow channel in which all or at least most of the partial stream is forced to flow through the at least one second other flow channel in the second section and to flow back to the inflow channel. 
     
     
         6 . The condenser according to  claim 1 , wherein the inflow channel, as viewed in the direction of the inflowing coolant, begins on the second section, the throttle-like device being arranged relatively close to the beginning of the inflow channel, the throttle-like device including at least one vane extending into the inflow channel, the at least one vane deflects the partial stream into the at least one other flow channel of the second section. 
     
     
         7 . The condenser according to  claim 6 , wherein the throttle-like device is arranged roughly at half-height of the second section in the inflow channel. 
     
     
         8 . The condenser according to  claim 6 , wherein the partial stream enters the inflow channel again behind the throttle-like device, as viewed in the direction of the inflowing coolant. 
     
     
         9 . The condenser according to  claim 1 , wherein the inflow channel, as viewed in the direction of the inflowing coolant, begins on the first section and the throttle-like device is arranged relatively close to the end of the inflow channel. 
     
     
         10 . The condenser according to  claim 5 , wherein the throttle-like device includes a perforated disk. 
     
     
         11 . The condenser according to  claim 10 , further comprising a first partition arranged in the inflow channel and a second partition arranged in the outflow channel for the refrigerant. 
     
     
         12 . The condenser according to  claim 11 , wherein the first and second partitions, the cutoff and the perforated disk lie at roughly one level and define the barrier between the first and second sections. 
     
     
         13 . The condenser according to  claim 1 , wherein the throttle-like device is a cross-sectional narrowing of the inflow channel. 
     
     
         14 . The condenser according to  claim 11 , further comprising a collecting tank fastened on the stack, the collecting tank takes up condensed refrigerant coming from the first section, and dispenses condensed refrigerant into the second section for supercooling. 
     
     
         15 . The condenser according to  claim 14 , wherein one wall of the collecting tank is formed with a connector having a passage opening. 
     
     
         16 . The condenser according to  claim 15 , wherein the stack further includes a first and second cover plate and the connector for fastening of the collecting tank to the second cover plate, wherein a spacing is defined between the wall and the second cover plate. 
     
     
         17 . The condenser according to  claim 16 , wherein the connector provides a flow connection from the collecting tank through the second cover plate into the part of the inflow channel separated by the first partition and into the second section. 
     
     
         18 . The condenser according to  claim 1 , wherein the coolant main stream, as viewed in the flow direction of the main stream, enters at least another flow channel of the first section behind the throttle-like device and flows through it.