A first valve of a manifold for a fluid distribution system may regulate a fluid flow to a first fluid handling device (“FHD”). A second valve of the manifold may communicate with a second FHD, a reservoir, or a recirculation line. A target flow condition for the manifold may be determined by a manifold control system (“MCS”) based on a device setting received for the first FHD. The MCS may determine a fluid distribution system operation for obtaining the target flow condition based on the target flow condition, a flowrate of the fluid flow, and an operational state of a supply device. The operation may include the MCS controlling at least one of the supply device, the first valve, and the second valve to change the flowrate. The MCS may continuously operate at least one manifold valve to maintain the target flow condition once exhibited by the manifold.

Various examples relate to electrically actuated valves. Various examples relate to actuators to be used for valves, e.g., shape—memory alloy actuators or solenoid actuators (151) or piezoelectric actuators. Various examples relate to a modular concept in which a valve can be formed by attaching an actuator component (601) to a housing. Various examples relate to a further modular concept in which multiple valve blocks, each valve block including one or more valves, can be fluidly coupled with each other.

Various examples relate to electrically actuated valves. Various examples relate to actuators to be used for valves, e.g., shape—memory alloy actuators or solenoid actuators (151) or piezoelectric actuators. Various examples relate to a modular concept in which a valve can be formed by attaching an actuator component (601) to a housing. Various examples relate to a further modular concept in which multiple valve blocks, each valve block including one or more valves, can be fluidly coupled with each other.

A valve device or a vehicle system, the system including first and second control units which are electrically connectable or connected to the valve device, which includes a valve unit with at least one actuator for actuating the valve unit, first/second supply ports for the electrical connection of the actuator to the first/second control units, first/second main ports for the electrical connection of the actuator to the first/second control units, first/second electric protective circuits, and a valve housing for accommodating the valve unit and the protective circuits. The first protective circuit is electrically connected between the first/second supply ports, and the actuator. The second protective circuit is electrically connected between the actuator and the first/second main ports. Each protective circuit includes an electrical fuse device and a diode element that are integrated in series in at least the first/second supply ports or at least the first/second main ports.

A valve device or a vehicle system, the system including first and second control units which are electrically connectable or connected to the valve device, which includes a valve unit with at least one actuator for actuating the valve unit, first/second supply ports for the electrical connection of the actuator to the first/second control units, first/second main ports for the electrical connection of the actuator to the first/second control units, first/second electric protective circuits, and a valve housing for accommodating the valve unit and the protective circuits. The first protective circuit is electrically connected between the first/second supply ports, and the actuator. The second protective circuit is electrically connected between the actuator and the first/second main ports. Each protective circuit includes an electrical fuse device and a diode element that are integrated in series in at least the first/second supply ports or at least the first/second main ports.

A valve housing (1) has first and third openings (1.1, 1.3), and first and second actuating elements (6.1, 6.2) that are movable along a longitudinal axis of the housing (1). A return element (5) is between the actuating elements (6.1, 6.2), and exerts a force to keep the actuating elements (6.1, 6.2) in a rest position to close or open the first and third openings (1.1. 1.3). First and second wires (4.1, 4.2) are formed from a shape memory alloy. The first wire (4.1) is on the first actuating element (6.1) and the second wire (4.2) is on the second actuating element (6.2). An electric current to the first or second wire (4.1, 4.2) contracts the respective wire (4.1, 4.2) and moves the corresponding actuating element (6.1, 6.2) into an activated position against the force exerted by the return element (5).

A pump (10) includes: a flat plate (20); a piezoelectric element (21); a flat plate (30); a side wall (40); a support member (22); a support member (32); a shielding plate (500); a ventilation hole (23); a ventilation hole (33); a film valve (61); and a film valve (62). The film valve (61) is arranged in a region where the flat plate (20) and the shielding plate (500) face each other. The film valve (62) is arranged in a region where the flat plate (30) and the shielding plate (500) face each other. A center side of one of the film valve (61) and the film valve (62) is fixed in a state in which an outer edge side is movable, and the outer edge side of the other is fixed in a state in which the center side is movable.

A heat exchanger is configured to adjust a flow restriction of flow passages through the heat exchanger in response to changes in temperature of elements that define at least a portion of the flow passages. The elements include a first material having a first coefficient of thermal expansion, and a second material having a second coefficient of thermal expansion that is different from the first coefficient of thermal expansion.

A valve device capable of precisely adjusting a flow rate includes: an operating member for operating a diaphragm and provided movably between a closed position at which diaphragm closes a flow path and an open position at which diaphragm opens the flow path; a main actuator that receives pressure from a supplied drive fluid and moves the operating member to the open position or the closed position; an adjusting actuator for adjusting the position of the operating member positioned in the open position by using a passive element which expands and contracts in response to a given input signal; a position detecting mechanism for detecting the position of the operating member with respect to a valve body; and an origin position determining unit that uses a valve closed state in which the diaphragm contacts to valve seat to determine an origin position of the position detecting mechanism.

Disclosed is an actuator unit for opening or closing a valve opening of a valve for a pneumatic adjusting device of a vehicle seat, comprising a circuit board with a top side extending in a circuit board plane, an actuating element with an actuating section for opening or closing the valve opening and a bending section connected to the actuating section, and an actuator element with a first end mechanically connected to the actuating section and a second end mechanically connected to the circuit board. The actuator element is configured to, when actuated, bend the bending section such that the actuating section is moved between a first position for opening the valve opening and a second position for closing the valve opening. The actuating section is arranged on a first side and the bending section is arranged on a second side, situated opposite the first side, respective of the circuit board plane.