Abstract:
A compressor (12) having plural banks of cylinders (LS1,LS2,HS) can be operated multi-stage, single stage, plural parallel single stages and, when multi-stage, with or without an economizer (30). One (LS2) of the low stage banks (LS1,LS2) of cylinders can be unloaded to reduce the first stage output during multi-stage operation or to permit operation of single stage when the second stage (HS) is bypassed.
Abstract:
The invention concerns a turbine driven compressor comprising a compression chamber at one side limited by a piston and drive means for moving the piston reciprocatingly in the compression chamber between a top dead centre position and a bottom dead centre position, the drive means comprising a turbine such as a wind turbine or a water turbine, the turbine having measuring means for determining a rotation speed of the turbine and/or a flow speed of the turbine driving flow of wind or water. In accordance with the invention, the drive means comprises coupling means for coupling and decoupling the rotation of the turbine and the reciprocating movement of one or more pistons.
Abstract:
The invention relates to a method (32) of operating a fluid working machine (1), comprising at least one working chamber (4) of cyclically changing volume, a high pressure fluid connection (19), a low pressure fluid connection (18) and at least one electrically actuated valve (10, 11), connecting said working chamber (4) to said high pressure fluid connection (19) and/or said low pressure fluid connection (18). The actuation of the electrically actuated valve (10, 11) is varied depending on the fluid flow demand (34) and/or on the mechanical power demand (34). For the actuation of the electrically actuated valves (10, 11), an actuation sequence (14) is calculated, covering a plurality of working cycles (15) of the cyclically changing volume (4) .
Abstract:
The invention concerns a turbine driven compressor comprising a compression chamber at one side limited by a piston and drive means for moving the piston reciprocatingly in the compression chamber between a top dead centre position and a bottom dead centre position, the drive means comprising a turbine such as a wind turbine or a water turbine, the turbine having measuring means for determining a rotation speed of the turbine and/or a flow speed of the turbine driving flow of wind or water. In accordance with the invention, the drive means comprises coupling means for coupling and decoupling the rotation of the turbine and the reciprocating movement of one or more pistons.
Abstract:
The invention concerns a turbine driven compressor compressing a gas comprising a compression chamber at one side limited by a piston and drive means for moving the piston reciprocating in the compression chamber between a top dead centre position and a bottom dead centre position, the drive means being driven by a turbine such as a wind turbine or a water turbine, the turbine having measuring means for determining a rotation speed of the turbine and/or a flow speed of the turbine driving flow of wind or water. In accordance with the invention the compressor comprises two or more compression chambers and load control means for activating and deactivating the compression of gas in one or more compression chambers in dependence of the determined rotation speed and/or flow speed.