US2007256431A1PendingUtilityA1

Air-Conditioning Compressor or Air Conditioning System

Assignee: LUK FAHRZUG HYDRAULIK GMBH & CPriority: Sep 28, 2005Filed: Sep 28, 2005Published: Nov 8, 2007
Est. expirySep 28, 2025(expired)· nominal 20-yr term from priority
F25B 43/003F04B 39/16F04B 27/1036
44
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Claims

Abstract

An air-conditioning compressor for air conditioning systems, especially for motor vehicles, or an air conditioning system comprising an air-conditioning compressor. The air-conditioning compressor is connected to a high-pressure zone and a suction pressure zone. Driving chamber pressure is redirected from the driving chamber of the air-conditioning compressor, i.e. from the high-pressure zone of the driving chamber to the suction pressure zone, if necessary while a filter, particularly a dirt particle filter, is optionally located in the suction pressure zone.

Claims

exact text as granted — not AI-modified
1 - 10 . (canceled)  
   
   
       11 . An air-conditioning system comprising: 
 a high-pressure zone;    a suction pressure zone;    an air-conditioning compressor, the air-conditioning compressor communicating with the high-pressure zone and with the suction pressure zone; and    a dirt particle separator located in the suction pressure zone.    
   
   
       12 . The air conditioning system as recited in  claim 11  wherein the air-conditioning compressor includes a drive chamber, and further comprising a drive-chamber pressure return from the drive chamber to the suction pressure zone.  
   
   
       13 . The air conditioning system as recited in  claim 12  further comprising a filter located in the suction pressure zone.  
   
   
       14 . The air conditioning system as recited in  claim 11  further comprising a filter located in the suction pressure zone.  
   
   
       15 . The air conditioning system as recited in  claim 14  wherein the filter is a dirt particle filter.  
   
   
       16 . The air-conditioning system as recited in  claim 11  wherein the dirt particle separator is a cyclone separator and the air conditioning compressor includes a suction-pressure chamber, and further comprising a dirt-particle collection device, dirt particles being separated by an action of centrifugal force along walls of the dirt particle separator and being collected in the dirt-particle collecting device, while a resultant purified refrigerant stream is directed toward the suction-pressure chamber.  
   
   
       17 . The air-conditioning system as recited in  claim 14  wherein the dirt particle separator is located upstream of the filter.  
   
   
       18 . The air-conditioning system as recited in  claim 11  wherein the compressor includes a housing, the dirt particle separator being located inside of the compressor housing.  
   
   
       19 . The air-conditioning system as recited in  claim 18  wherein the air-conditioning compressor includes a drive chamber and suction pressure chamber, and further comprising a drive-chamber pressure return from the drive chamber to the suction pressure zone and a filter in the suction pressure zone, the drive-chamber pressure return being connected between the filter and the compressor suction-pressure chamber.  
   
   
       20 . The air-conditioning system as recited in  claim 18  wherein the air-conditioning compressor includes a drive chamber, and further comprising a drive-chamber pressure return from the drive chamber to the suction pressure zone and a filter in the suction pressure zone, the drive-chamber pressure return being connected between the filter and the dirt particle separator.  
   
   
       21 . The air-conditioning system as recited in  claim 18  wherein the air-conditioning compressor includes a drive chamber, and further comprising a drive-chamber pressure return from the drive chamber to the suction pressure zone, the drive-chamber pressure return being connected upstream of the dirt particle separator.  
   
   
       22 . The air-conditioning system as recited in  claim 11  wherein the air-conditioning compressor includes a housing, a drive chamber and a suction-pressure chamber, and further comprising a drive-chamber pressure return from the drive chamber to the suction pressure zone and a filter in the suction pressure zone, the dirt particle separator being located outside of the compressor housing and the filter inside of the compressor housing, and the drive-chamber pressure return being connected downstream of the filter between the filter and the suction-pressure chamber.  
   
   
       23 . The air-conditioning system as recited in  claim 11  wherein the air-conditioning compressor includes a housing, a drive chamber and a suction-pressure chamber, and further comprising a drive-chamber pressure return from the drive chamber to the suction pressure zone and a filter in the suction pressure zone, the dirt particle separator and the filter being located outside of the housing, the drive-chamber pressure return being connected downstream of the filter between the filter and the suction-pressure chamber.  
   
   
       24 . The air-conditioning system as recited in  claim 11  wherein the air-conditioning compressor includes a housing, a drive chamber and a suction-pressure chamber, and further comprising a drive-chamber pressure return from the drive chamber to the suction pressure zone and a filter in the suction pressure zone, the dirt particle separator being located outside of the housing and the filter inside of the housing, and the drive-chamber pressure return being connected upstream of the filter.  
   
   
       25 . The air conditioning system as recited in  claim 11  wherein the air-conditioning system is a motor vehicle air-conditioning system.

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