SCROLL-TYPE ELECTRIC COMPRESSOR

Compressor fault diagnostic apparatus and system

Methods and systems for preventing premature compressor failure from improper operation

Fluid compressor

Scroll compressor having Oldham coupling with key portions and different width key gaps

Electric compressor

Methods and systems for preventing premature compressor failure from improper operation

Scallop step for a scroll compressor

Oldham coupling for a scroll compressor

Check valve with internal mass for progressive cavity pumps

Motor-driven compressor

Motor-driven compressor

Motor-driven compressor

Motor-driven centrifugal pump for the primary circuit of small or medium-sized modular nuclear reactors

Control method and control system for screw pump

Motor driven compressor

Variable frequency drive apparatuses, systems, and methods and controls for same

Single-screw compressor having an adjustment mechanism for adjusting a compression ratio of the compression chamber

Motor and pump assembly having improved sealing characteristics

Prevention of unpowered reverse rotation in compressors

Apparatus for preventing the backflow of gas of scroll compressor

Valve for preventing unpowered reverse run at shutdown

Rotation units and control systems having rotational direction control and methods of controlling the same

Method and system for improving pump efficiency and productivity under power disturbance conditions

Method and system for improving pump efficiency and productivity under power disturbance conditions

Method and system for improving pump efficiency and productivity under power disturbance conditions

Impeller pump with reciprocating vane and non-circular rotor

Device for prevention of backward operation of scroll compressors

Scroll compressor with backflow-proof mechanism

Eccentric coupling device in radial compliance scroll compressor

Eccentric coupling device in radial compliance scroll compressor