Inventor
SISHTLA VISHNU
US14 patents
Patents
14 patentsUS4997340AMar 5, 1991
Balance piston and seal arrangement
CARRIER CORP53 citations95
US5165248ANov 24, 1992
Oil reclaim in a centrifugal chiller system
CARRIER CORP24 citations91
US5685699ANov 11, 1997
Compressor transmission vent system
CARRIER CORP24 citations89
US5249919AOct 5, 1993
Method of mounting silencer in centrifugal compressor collector
CARRIER CORP15 citations72
US12163711B2Dec 10, 2024
Surge prevention in a chiller with centrifugal compressor
CARRIER CORP0 citations61
US6619430B2Sep 16, 2003
Refrigerant gas buffered seal system
CARRIER CORP6 citations61
US11923746B2Mar 5, 2024
Magnetic bearing cooling management
CARRIER CORP0 citations60
US12571571B2Mar 10, 2026
Magnetic bearing levitation control
CARRIER CORP0 citations56
US12123430B2Oct 22, 2024
Inlet guide vane mechanism for centrifugal compressor, centrifugal compressor and refrigeration system
CARRIER CORP0 citations55
US12492707B2Dec 9, 2025
Impeller with variable backsweep angle
CARRIER CORP0 citations52
US11859881B2Jan 2, 2024
Refrigeration system and control method therefor
CARRIER CORP0 citations51
US12072127B2Aug 27, 2024
Refrigeration system and oil recovery method for the same
CARRIER CORP0 citations50
US12044240B2Jul 23, 2024
Refrigeration system mixed-flow compressor
CARRIER CORP0 citations50
US11879468B2Jan 23, 2024
Control method for centrifugal compressor and air conditioning system
CARRIER CORP0 citations46