Abstract: A vacuum system (10) and method (100) used for creating a dynamically controlled vacuum system (10) for lifting processes (Wc) are disclosed. The compressed air used for an ejector (3) is varied by calculating the required vacuum levels (V?) during the lifting process (Wc). This reduces the air consumption.

Abstract: A vacuum system (10) and method (100) used for creating a dynamically controlled vacuum system (10) for lifting processes (Wc) are disclosed. The compressed air used for an ejector (3) is varied by calculating the required vacuum levels (V? ) during the lifting process (Wc). This reduces the air consumption.

Abstract: A method for controlling a vacuum generator (3) in a vacuum system (10) for transportation of objects, which vacuum system (10) comprises a vacuum generator (3) driven by a compressed air flow via a first on/off valve (1), wherein the vacuum generator (3) is arranged to be brought in flow connection with the vacuum gripper means (6) comprised in the vacuum system (10), in order to supply vacuum to the vacuum gripper means (6) in result of the compressed air flow, wherein the vacuum system (10) comprises a second valve (2), which is arranged to supply compressed air into the vacuum system (10); one centralized pressure sensor (4) used for monitoring a system pressure (P) inside the vacuum system (10) and for adaptive blow-off; and a vacuum system controller (5), wherein if the on/off valve (1) is not flowing air to the vacuum generator (3), the vacuum system controller (5) indicates a state of no vacuum generation, and the second valve (2) is activated, allowing an amount of compressed air to flow into the vac

Abstract: The invention relates to energy saving in vacuum systems by means of a method and a controller enabling to consider the fluctuation in system-pressure of a system by determining a maximum system-pressure S2H and a minimum system-pressure S2h for each working cycle WC based on a determined target system-pressure pn? and a pre-set system-pressure p0? for the current working cycle WCn (n=1, 2, 3, . . . ). The method is especially adapted to fluctuations in system-pressure level of a vacuum system comprising a vacuum gripper tool.

Abstract: A controller for controlling a vacuum generator in a vacuum system for transportation of objects, which vacuum system comprises a vacuum generator driven by a compressed air flow via a first on/off valve, to supply vacuum to a vacuum gripper, the vacuum system comprises a second valve arranged to supply compressed air into the vacuum system; a pressure sensor for monitoring a system-pressure inside a vacuum chamber; and the controller that is arranged to communicate with the first on/off valve, the second valve and the pressure sensor; and when the on/off valve is not flowing air to the vacuum generator, and the controller indicates a state of no vacuum generation, and if a fluctuation from a pressure-equilibrium to a negative time-derivative of the system-pressure is detected, the controller is arranged to activate the second valve, allowing compressed air to flow into the vacuum-chamber for compensation to re-establish the pressure-equilibrium.

Abstract: A method for controlling a vacuum generator (3) in a vacuum system (10) for transportation of objects, which vacuum system (10) comprises a vacuum generator (3) driven by a compressed air flow via a first on/off valve (1), wherein the vacuum generator (3) is arranged to be brought in flow connection with the vacuum gripper means (6) comprised in the vacuum system (10), in order to supply vacuum to the vacuum gripper means (6) in result of the compressed air flow, wherein the vacuum system (10) comprises a second valve (2), which is arranged to supply compressed air into the vacuum system (10); one centralized pressure sensor (4) used for monitoring a system pressure (P) inside the vacuum system (10) and for adaptive blow-off; and a vacuum system controller (5), wherein if the on/off valve (1) is not flowing air to the vacuum generator (3), the vacuum system controller (5) indicates a state of no vacuum generation, and the second valve (2) is activated, allowing an amount of compressed air to flow into the vac

Abstract: The invention relates to energy saving in vacuum systems by means of a method and a controller enabling to consider the fluctuation in system-pressure of a system by determining a maximum system-pressure S2H and a minimum system-pressure S2h for each working cycle WC based on a determined target system-pressure pn? and a pre-set system-pressure p0? for the current working cycle WCn (n=1, 2, 3, . . . ). The method is especially adapted to fluctuations in system-pressure level of a vacuum system comprising a vacuum gripper tool.

Abstract: A controller (5) for controlling a vacuum generator (3) in a vacuum system (10) for transportation of objects, which vacuum system (3) comprises a vacuum generator (3) driven by a compressed air flow via a first on/off valve (1), wherein the vacuum generator (3) via a vacuum chamber (11) being part of the vacuum system (10) is arranged to be brought in flow connection with the vacuum gripper means (6) comprised in the vacuum system (10), in order to supply vacuum to the vacuum gripper means (6) in result of the compressed air flow, wherein the vacuum system (10) comprises a second valve (2) arranged to supply compressed air into the vacuum system (10); a pressure sensor (4) for monitoring (21) a system pressure (P) inside the vacuum chamber (11); and a vacuum system controller (5), wherein the controller (5) is arranged to communicate with the first on/off valve (1), the second valve (2) and the pressure sensor and when the on/off valve (1) is not flowing air to the vacuum generator (3), and the controller (5

Abstract: An object-sensing valve configured for integration in the suction duct (3) of a vacuum gripper includes a flexible and back-springing tongue (10), one end (11) of which is anchored by the side of the suction duct and the other end (14) of which extends freely outside a mouth (8; 8?) to the suction duct, the tongue dimensioned to be forced by an air flow (F) to bend towards the mouth of the suction duct and to cover the mouth incompletely in the loaded state of the tongue.

Abstract: An object-sensing valve configured for integration in the suction duct (3) of a vacuum gripper includes a flexible and back-springing tongue (10), one end (11) of which is anchored by the side of the suction duct and the other end (14) of which extends freely outside a mouth (8; 8?) to the suction duct, the tongue dimensioned to be forced by an air flow (F) to bend towards the mouth of the suction duct and to cover the mouth incompletely in the loaded state of the tongue.

Abstract: A heat transfer arrangement comprises a refrigerant circuit (102). The refrigerant circuit (102) comprises an evaporator (104) adapted to be arranged inside an electronic component housing (202), a condenser (108) adapted to be arranged outside the electronic component housing (202), a first conduit leading (106) from the evaporator (104) to the condenser (108), and a second conduit leading from the condenser (108) to the evaporator (104). A refrigerant is present in the refrigerant circuit (102) and in use, under first temperature conditions, is arranged to self-circulate in the refrigerant circuit (102) by evaporating in the evaporator (104), rising as a gas through the first conduit, condensing in the condenser (108) and flowing through the second conduit to the evaporator (104).