Abstract: Screw compressor with a compression chamber that is formed by a compression housing, in which a pair of meshed helical compressor rotors in the form of a screw are rotatably mounted and with a drive motor that is provided with a motor chamber formed by a motor housing, in which a motor shaft is rotatably mounted. The motor shaft drives at least one of the aforementioned two compressor rotors, where the compression housing and the motor housing are connected directly together to form a compressor housing, where the rotor shafts of the compressor rotors, as well as the motor shaft, extend along axial directions that are oblique or transverse to the horizontal plane. The motor chamber and the compression chamber have the same or similar pressure.

Abstract: A device for separating liquid from a gas stream within a liquid injected vacuum pump or compressor, said device comprising: two communicating vessels having a common section extending over at least a part of the height; an inlet opening positioned on the opposite side of the common section; at least two bucket shaped vessels, each provided within one of the two communicating vessels; a lid comprising an outlet opening; wherein at least one of the two bucket shaped vessels forms a fluid passage between the wall of the communicating vessel and the wall of the bucket shaped vessel for allowing a fluid to pass there through.

Abstract: A device for separating liquid from a gas stream within a liquid injected vacuum pump or compressor, said device comprising: two communicating vessels having a common section extending over at least a part of the height; an inlet opening positioned on the opposite side of the common section; at least two bucket shaped vessels, each provided within one of the two communicating vessels; a lid comprising an outlet opening; wherein at least one of the two bucket shaped vessels forms a fluid passage between the wall of the communicating vessel and the wall of the bucket shaped vessel for allowing a fluid to pass there through.

Abstract: A device for controlling the oil temperature of an oil-injected compressor installation with a compressor element that is provided with a gas inlet and an outlet for compressed gas that is connected to an oil separator that is connected by an injection pipe to the compressor element. A cooler is affixed in a part of the injection pipe that can be bypassed by means of a bypass pipe. The device is also provided with an extra pipe that is intended to be connected in parallel with the bypass pipe and the cooler, and in which an energy recovery system can be connected. Additionally, the device is provided with a flow distributor through the cooler, the bypass pipe and the extra pipe, and a controller for controlling these temperature control devices at the outlet of the compressor element.

Abstract: A device for separating liquid from a gas stream within a liquid injected vacuum pump or compressor, said device comprising: two communicating vessels having a common section extending over at least a part of the height; an inlet opening positioned on the opposite side of the common section; at least two bucket shaped vessels, each provided within one of the two communicating vessels; a lid comprising an outlet opening; wherein at least one of the two bucket shaped vessels forms a fluid passage between the wall of the communicating vessel and the wall of the bucket shaped vessel for allowing a fluid to pass there through.

Abstract: Screw compressor with a compression chamber that is formed by a compression housing, in which a pair of meshed helical compressor rotors in the form of a screw are rotatably mounted and with a drive motor that is provided with a motor chamber formed by a motor housing, in which a motor shaft is rotatably mounted. The motor shaft drives at least one of the aforementioned two compressor rotors, where the compression housing and the motor housing are connected directly together to form a compressor housing, where the rotor shafts of the compressor rotors, as well as the motor shaft, extend along axial directions that are oblique or transverse to the horizontal plane. The motor chamber and the compression chamber have the same or similar pressure.

Abstract: Method for preventing condensate in the oil of an oil-injected compressor (1), characterised in that before the compressor element (2) is stopped, when the maximum pressure (pmax) in the consumer network (16) has been reached, the compressor element continues to be driven until the temperature (T) of the oil or the compressed gas is lower than a set fixed or calculated minimum value (Tmin) above which there is no or as little condensate as possible in the oil.

Abstract: Screw compressor with a compression chamber that is formed by a compression housing, in which a pair of meshed helical compressor rotors in the form of a screw are rotatably mounted and with a drive motor that is provided with a motor chamber formed by a motor housing, in which a motor shaft is rotatably mounted. The motor shaft drives at least one of the aforementioned two compressor rotors, where the compression housing and the motor housing are connected directly together to form a compressor housing, where the motor chamber and the compression chamber are not sealed off from one another and where the rotor shafts of the compressor rotors, as well as the motor shaft, extend along axial directions that are oblique or transverse to the horizontal plane.

Abstract: Screw compressor with a compression chamber that is formed by a compression housing, in which a pair of meshed helical compressor rotors in the form of a screw are rotatably mounted and with a drive motor that is provided with a motor chamber formed by a motor housing, in which a motor shaft is rotatably mounted. The motor shaft drives at least one of the aforementioned two compressor rotors, where the compression housing and the motor housing are connected directly together to form a compressor housing, where the motor chamber and the compression chamber are not sealed off from one another and where the rotor shafts of the compressor rotors, as well as the motor shaft, extend along axial directions that are oblique or transverse to the horizontal plane.

Abstract: Screw compressor with a compression chamber that is formed by a compression housing, in which a pair of meshed helical compressor rotors in the form of a screw are rotatably mounted and with a drive motor that is provided with a motor chamber formed by a motor housing, in which a motor shaft is rotatably mounted. The motor shaft drives at least one of the aforementioned two compressor rotors, where the compression housing and the motor housing are connected directly together to form a compressor housing, where the motor chamber and the compression chamber are not sealed off from one another and where the rotor shafts of the compressor rotors, as well as the motor shaft, extend along axial directions that are oblique or transverse to the horizontal plane.

Abstract: Compressor device that is at least provided with a screw compressor with a compression chamber that is formed by a compression housing, with a drive motor that is provided with a motor chamber formed by a motor housing and with an outlet for the discharge of compressed air that is connected to a pressure vessel via an outlet pipe, whereby the compression housing and the motor housing are connected directly to one another to form a compressor housing, whereby the motor chamber and the compression chamber are not sealed off from one another and whereby the outlet pipe between the pressure vessel and the screw compressor is free of closing means.

Abstract: A device for separating liquid from a gas stream within a liquid injected vacuum pump or compressor, said device comprising: two communicating vessels having a common section extending over at least a part of the height; an inlet opening positioned on the opposite side of the common section; at least two bucket shaped vessels, each provided within one of the two communicating vessels; a lid comprising an outlet opening; wherein at least one of the two bucket shaped vessels forms a fluid passage between the wall of the communicating vessel and the wall of the bucket shaped vessel for allowing a fluid to pass there through.

Abstract: Device for controlling the oil temperature of an oil-injected compressor installation (1) with a compressor element (2) that is provided with a gas inlet (3) and an outlet (5) for compressed gas that is connected to an oil separator (8) that is connected by means of an injection pipe (12) to the aforementioned compressor element (2), and whereby a cooler (17) is affixed in a part (19) of the injection pipe (12) that can be bypassed by means of a bypass pipe (18), characterised in that the device (20) is provided with an extra pipe (21) that is intended to be connected in parallel with the bypass pipe (18) and the cooler (17), and in which an energy recovery system (22) can be connected, and that the device (20) is provided with flow distribution means (23) through the cooler (17), the bypass pipe (18) and the extra pipe (21), and a controller (28) for controlling these temperature (Tout) control means at the aforementioned outlet (5) of the compressor element (2).

Abstract: Screw compressor with a compression chamber that is formed by a compression housing, in which a pair of meshed helical compressor rotors in the form of a screw are rotatably mounted and with a drive motor that is provided with a motor chamber formed by a motor housing, in which a motor shaft is rotatably mounted. The motor shaft drives at least one of the aforementioned two compressor rotors, where the compression housing and the motor housing are connected directly together to form a compressor housing, where the motor chamber and the compression chamber are not sealed off from one another and where the rotor shafts of the compressor rotors, as well as the motor shaft, extend along axial directions that are oblique or transverse to the horizontal plane.

Abstract: Screw compressor with a compression chamber that is formed by a compression housing, in which a pair of meshed helical compressor rotors in the form of a screw are rotatably mounted and with a drive motor that is provided with a motor chamber formed by a motor housing, in which a motor shaft is rotatably mounted, and this motor shaft drives at least one of the aforementioned two compressor rotors, whereby the compression housing and the motor housing are connected directly together to form a compressor housing, whereby the motor chamber and the compression chamber are not sealed off from one another and whereby the rotor shafts of the compressor rotors, as well as the motor shaft, extend along axial directions that are oblique or transverse to the horizontal plane.

Abstract: Method for preventing condensate in the oil of an oil-injected compressor (1), characterised in that before the compressor element (2) is stopped, when the maximum pressure (pmax) in the consumer network (16) has been reached, the compressor element continues to be driven until the temperature (T) of the oil or the compressed gas is lower than a set fixed or calculated minimum value (Tmin) above which there is no or as little condensate as possible in the oil.

Abstract: Compressor device that is at least provided with a screw compressor with a compression chamber that is formed by a compression housing, with a drive motor that is provided with a motor chamber formed by a motor housing and with an outlet for the discharge of compressed air that is connected to a pressure vessel via an outlet pipe, whereby the compression housing and the motor housing are connected directly to one another to form a compressor housing, whereby the motor chamber and the compression chamber are not sealed off from one another and whereby the outlet pipe between the pressure vessel and the screw compressor is free of closing means.

Abstract: Screw compressor with a compression chamber that is formed by a compression housing, in which a pair of meshed helical compressor rotors in the form of a screw are rotatably mounted and with a drive motor that is provided with a motor chamber formed by a motor housing, in which a motor shaft is rotatably mounted, and this motor shaft drives at least one of the aforementioned two compressor rotors, whereby the compression housing and the motor housing are connected directly together to form a compressor housing, whereby the motor chamber and the compression chamber are not sealed off from one another and whereby the rotor shafts of the compressor rotors, as well as the motor shaft, extend along axial directions that are oblique or transverse to the horizontal plane.

Abstract: Method for assembling a rotor with permanent magnets, including the steps of introducing the magnets in 10 recesses of a non-ferromagnetic holder; combining the holder and the permanent magnets with a non-ferromagnetic support plate; attaching the permanent magnets to the support plate; and removing the holder and providing lamellae over the permanent magnets attached to the support plate. A holder and rotor obtained by the method are described.