Abstract: A power generation system comprising a liquid pump section (4) comprising a rotary liquid pump (7) with an impeller in which a working fluid is pressurised and which is driven by a drive shaft (8); an evaporator section comprising an evaporator (9) in which the in the rotary liquid pump (7) pressurised working fluid is at least partly evaporated by addition of heat from a heat source; an expander section (3) comprising a rotary expander (11) with an inlet port (16) and a rotary expander element in which the in the evaporator section at least partly evaporated working fluid is expanded; and a generator section (5) comprising a rotary power generator (13) with a rotor, whereby the expander section (3), the liquid pump section (4) and the generator section (5) are rotably connected in such a manner that relative rotational speed ratios between the rotary expander element of the rotary expander (11), the impeller of the rotary liquid pump (7) and the rotor of the rotary power generator (13) are mechanically u

Abstract: Gear wheel that is provided with spokes (17) which extend between a rim (16) supporting a gear mesh (15) and a corresponding gear hub (18), whereby free spaces (19) are located between the spokes (17) which extend between the rim (16) and the gear hub (18), characterised in that at least one of said free spaces (19) is filled with a block (20) made of a rigid, incompressible material, whereby between the gear wheel (10) on the one hand and the block (20) on the other hand a viscoelastic material (21) is located.

Abstract: Device for drying compressed gas having at least two vessels containing a regenerable drying agent and an controllable valve system with a first valve block and a second valve block. The device is further provided with a first regeneration line with heating means and a second regeneration line for discharging saturated regeneration gas. The regeneration lines are connected to a different valve block, wherein in the first regeneration line between a blow-off opening or blower and the heating means an additional vessel with a regenerable drying agent is incorporated.

Abstract: An element for compressing or expanding a gas including a rigid housing (2) containing an internal chamber; a rotor (3a, 3b) situated in the internal chamber and comprising a rotor shaft (4a, 4b); one or more bearings (7) in which the rotor shaft (4a, 4b) is bearing-supported, wherein the rotor (3a, 3b) with its rotor shaft (4a, 4b) is rotatably mounted with respect to the housing (2) by means of these bearings (7), wherein the rotor (3a, 3b) is mounted with one or more clearances with respect to a wall (5) of the internal chamber, and the element (1) is provided with a separate yielding component (10) which is positionally adjustable with respect to the housing (2) in such a way that at least one of the clearances can be acted upon, wherein the separate yielding component (10) is not directly attached to the rotor (3a, 3b).

Abstract: Unloader for a compressor, said unloader (1) comprising a housing (2) with an inlet (3) and an outlet (4), and whereby the unloader (1) is further provided with a piston rod (5) which is arranged moveably in a reciprocating manner in the housing (2), whereby on one end (5a) of the piston rod (5) a valve (7) is provided to be able to close the outlet (4) and whereby on the other end (5b) of the piston rod (5) a piston (8) is arranged, the piston being arranged moveably in a reciprocating manner in a thereto provided cavity (9) of the unloader (1), said cavity (9) being at least partially delimited by a lid (10) which is provided on the housing (2) and which is also part of the unloader (1), whereby sealing means (11) are provided for the leakage-free movement of the piston (8) in said cavity (9), whereby the cavity (9) in which the piston (8) is arranged moveably in a reciprocating manner is provided at least partially in the lid (10).

Abstract: Method for drying compressed gas by means of a drying device with an inlet for the compressed gas to be dried and an outlet for the dried compressed gas. The drying device includes at least two vessels filled with a regenerable desiccant and an adjustable valve system including a first valve block and a second valve block that connects the inlet, respectively outlet, to the vessels. The adjustable valve system is being regulated as such that at least one vessel will dry compressed gas, while the other vessel will be regenerated and cooled successively, wherein by regulation of the valve system the vessels will each in turn dry compressed gas. The method includes calculating the time period (tads) during which a vessel (2) dries compressed gas, calculated on the basis of a (tads) formula tads=A*B.

Abstract: The present invention is directed to a minimum pressure valve comprising a housing (13) with a valve inlet (11) and a valve outlet (12) which are connected by means of a chamber (16), said minimum pressure valve (10) further comprising a valve body (17) movable in said chamber (16) between a closed position in which said valve inlet (11) is closed off, and an open position in which said valve inlet (11) is open, whereby said minimum pressure valve (10) further comprises a regulation unit (18) for setting the value of the pressure at which the valve body (17) moves into an open position.

Abstract: Method for drying compressed gas by means of a drying device with an inlet and an outlet including at least two vessels filled with a regenerable desiccant and a controllable valve system including a first and a second valve block connecting the inlet, respectively the outlet to the vessels. The valve system is being regulated such that one vessel will dry compressed gas, while the other vessel is successively regenerated and cooled. The method includes a first and a second cooling cycle. The first cooling cycle includes passing ambient air through the vessel to be cooled. The second cooling cycle includes branching off, expanding and sending dried compressed gas through the outlet to be branched off and then blowing it off through the vessel to be cooled, using either the first or the second cooling cycle, or both, depending on predetermined conditions.

Abstract: A controller for a compressor, more specifically for a first electrical VSD motor configured to drive a compressor element, the controller including a housing in which is provided a rectifier, a DC link with a DC bus and two inverters connected to the same DC bus, a first inverter configured to control the first VSD motor driving the compressor element, and a second inverter configured to control a second VSD motor driving a fan configured to cool the compressor.

Abstract: Device for expanding a fluid, wherein the device (1) is provided with an expander element (2) for expanding the fluid, a generator (3) and a transmission (4) between the two, characterized in that the generator (3) is a liquid-cooled generator and the expander element (2) is heated using liquid, wherein the device (1) is further provided with a common liquid circuit (8) for the generator (3) and the expander element (2), wherein the liquid circuit (8) comprises a liquid pump (10) which can pump up liquid from a liquid reservoir (11), wherein the liquid circuit (8) also comprises a liquid line (9) which runs from the liquid reservoir (11) and which incorporates the liquid pump (10), the generator (3) and the expander element (2).

Abstract: Oil-injected multistage compressor device including a low-pressure compressor element (2) with a gas inlet (4a) for gas to be compressed and a gas outlet (5a) for low-pressure compressed gas and a high-pressure stage compressor element (3) with a gas inlet (4b) for low-pressure compressed gas and a gas outlet (5b) for high-pressure compressed gas. The gas outlet (5a) of element (2) is connected to inlet (4b) of element (3) via a conduit (6). The conduit (6) has a regulatable intercooler (9) configured to regulate the temperature at the gas inlet (4b) of the high-pressure stage compressor element (3) so that it is above the dew point. The intercooler (9) includes a regulatable air cooler and/or a regulatable water cooler, and is configured to adjust the temperature of the air or water by using a bypass conduit (16) and/or by screening off part of the intercooler (9).

Abstract: A method for controlling a compressor towards an unloaded state, in which the compressor includes a compressor element (2) with an inlet (5), in which in the unloaded state, a residual flow (QD) is suctioned via the inlet (5) towards and into the compressor element (2), and in which for a transition from a loaded state of the compressor to the unloaded state, the inlet (5) of the compressor element (2) is partially closed in successive discrete transitional steps.

Abstract: Machine provided with a machine element (2) and an oil pump (4) and a motor (3) to drive the machine element (2) and the oil pump (4), whereby the oil pump (4) is provided with a shaft (13) with a rotor (12), whereby the oil pump (4) is provided to pump oil from an oil reservoir (5) via an inlet channel (8) to nozzles that lead into the motor (3) and/or machine element (2) to lubricate and/or cool one or more bearings or other machine components, characterized in that in the inlet channel (8), near the oil pump (4) a dam (16) is provided that is higher than the height (A) of the central axis (18) of the shaft (13) of the oil pump (4) minus the smallest diameter (B) of the rotor (12) of the oil pump (4) divided by two.

Abstract: Compressor device provided with at least one compressor element and a drive for the compressor element, wherein all bearings of at least one shaft in the compressor device configured to carry static axial load, are provided with a bearing damper which comprises a coupling element and at least one damping element made of damping elastomer material. The bearing damper is installed with the aid of the coupling element between a bearing of the compressor device and the housing of the compressor device. The coupling element allows little or no movement of the bearing relative to the housing the radial direction compared to the axial direction. The damping element is configured to dampen the axial movement of the bearing relative to the housing.

Abstract: Positive displacement machine such as a compressor, expander, pump or the like, for displacing a gaseous or liquid medium, the machine containing an element with at least one inlet and at least one outlet for the medium and at least two cooperating driven moving parts. The mutual periodic movement of the moving parts displaces the medium from the inlet to the outlet. Each of the at least two driven cooperating moving parts is provided with its own individual drive. The element is provided with a kinematic synchronisation coupling between the at least two cooperating moving parts for the mutual kinematic synchronisation of their movements.

Abstract: A filter assembly including a housing (15) and a filter cartridge (10). The housing has a housing inlet (16) and a housing outlet (17). The filter cartridge (10) has a filter inlet (11) fluidly connected to the housing inlet (16) and a filter element (12) between a top cap (18) and a bottom cap (19). The top cap (18) and the bottom cap (19) create a circular guiding system. The bottom cap (19) has a first part (19a) that receives the filter element (12) and a second part (19b) that is connected with a mating surface (20) of the housing. The second part has a first circular section (21a) and a second section (21b) and the first section has another shape than the second section (21b), such that the bottom cap (19) cannot rotate in relation to the mating surface.

Abstract: Method for installing a transmission between a drive with a driveshaft and a load with a driven shaft, where this transmission includes a housing and at least a drive gear and a driven gear, where the method includes first affixing the transmission over the driveshaft and fastening the housing of the transmission to the housing of the drive and then affixing a shaft seal over the driveshaft.

Abstract: A compressor configured for compressing and supplying a gas to a pneumatic network includes one or more pneumatic consumers, and a control unit configured to manage the compressor. The compressor further includes a wireless coupling unit configured to manage the compressor wirelessly through the control unit.

Abstract: Dryer for a compressed gas includes a pressure vessel containing a drying zone and a regeneration zone, a drum provided with regenerable drying agent, an inlet for the supply of the compressed gas to be dried to the drying zone, an outlet for the expulsion of dried compressed gas, a first connection line for branching off a partial stream of the compressed gas to be dried or the dried compressed gas and conducting this partial stream to the regeneration zone, adjustable means for the combination of the partial stream with the supply stream and regulation of the flow from the partial stream with regard to the supplied stream, at least one sensor for measuring at least one measurement value with regard to the function of the dryer, a control unit for processing of the at least one measurement value and installation of a control signal on the adjustable means.