Heat exchanger element and heat exchanger using same
US4909716A
Screw step drive internal volume ratio varying system for helical screw rotary compressor
CA1271175A
Thermostatic valve with trap repair cartridge
EP0485373A4
Method of manufacturing heat exchangers
US4727907A
Turbulator with integral flow deflector tabs
US4647801A
Electric motor back-stopping device
US4583373A
Constant evaporator pressure slide valve modulator for screw compressor refrigeration system
US4527967A
Screw rotor machine with specific tooth profile
US4536130A
Simplified unloader indicator for helical screw rotary compressor
US4545742A
Vertical axis hermetic helical screw rotary compressor with discharge gas oil mist eliminator and dual transfer tube manifold for supplying liquid refrigerant and refrigerant vapor to the compression area
US4495778A
Temperature and pressure actuated capacity control system for air conditioning system
US4497185A
Oil atomizing compressor working fluid cooling system for gas/vapor/helical screw rotary compressors
EP0104872A2
Air conditioning and compressor control system
US4478054A
Helical screw rotary compressor for air conditioning system having improved oil management
US4508491A
Modular unload slide valve control assembly for a helical screw rotary compressor
US4477233A
Vertical axis hermetic helical screw rotary compressor with discharge gas oil mist eliminator and dual transfer tube manifold for supplying liquid refrigerant and refrigerant vapor to the compression area
US4585169A
Constant volume flow burner fuel control system
US4439121A
Self-cleaning single loop mist type lubrication system for screw compressors
US4383802A
Oil equalization system for parallel connected compressors
US4388048A
Stepping type unloading system for helical screw rotary compressor
