A vehicular washing device includes: a nozzle (4); a flow passage forming body (2) of which an internal space is a flow passage of a fluid; and a valve (21) that has a pressing tube part (22) with an axial direction coinciding with a flow direction of the fluid, is elastically deformable in a direction in which the diameter of the pressing tube part changes, and opens and closes the flow passage according to the state of deformation. A first flow passage (2a) and a second flow passage (2b) are formed as the flow passage on opposite sides of the pressing tube part. A shaft (9) with which the pressing tube part is capable of coming into close contact is located inside the valve. The valve deforms elastically according to the magnitude of the pressure of the first flow passage or the pressure of the second flow passage relative to an atmospheric pressure.

A valve includes a deformable portion connected to a rigid portion. A portion of a surface of a frustoconical body of the rigid portion is disposed adjacent a portion of a surface of a frustoconical body of the deformable portion. A portion of a surface of an upper axially-extending portion of the rigid portion is disposed adjacent a portion of a surface of an upper axially-extending portion of the deformable portion. A portion of the surface of the frustoconical body of the deformable portion that is not disposed adjacent a portion of the surface of the frustoconical body of the rigid portion defines a circumferential void. The circumferential void is in fluid communication with a plurality of upstream radial bypass passages extending through the frustoconical body of the rigid portion.

A manual reset actuator includes a main drain, a diaphragm release aperture fluidly coupled to a flow control valve, an upper chamber, a control port, a control orifice, an upper chamber supply orifice, and a sealing assembly, which includes a button, and a plunger. A pressure in the upper chamber exerts a downward force on the plunger. A spring exerts an upward force on the plunger. The fluid in the upper chamber is released via the control orifice, which lowers the pressure in the upper chamber, decreasing the downward force exerted on the plunger. When the downward force is less than the upward force, the spring forces the plunger upwards into an open configuration, which unseals the diaphragm release aperture. When the upward force is less than the downward force, the plunger remains in a closed configuration, which keeps the diaphragm release aperture sealed.

A combination pressure regulator includes a regulator body having an inlet port, an outlet port, and a combined inlet and outlet port. A first pressure regulator includes a first diaphragm, a first valve assembly, and a first biasing member that applies a first bias force to the first diaphragm to establish a first pressure regulator setting. A second pressure regulator includes a second diaphragm, a second valve assembly, and a second biasing member that applies a second bias force to the second diaphragm to establish a second pressure regulator setting. An input portion of the first pressure regulator is in fluid communication with the inlet port. An output portion of the second pressure regulator is in fluid communication with the outlet port. An output portion of the first pressure regulator and an input portion of the second pressure regulator are in fluid communication with the combined inlet and outlet port.

A manual reset actuator is disclosed, which includes a main drain, a diaphragm release aperture fluidly coupled to a flow control valve, an upper chamber, a control port, a control orifice, an upper chamber supply orifice, and a sealing assembly, which includes a button, and a plunger. A pressure in the upper chamber exerts a downward force on the plunger. A spring exerts an upward force on the plunger. The fluid in the upper chamber is released via the control orifice, which lowers the pressure in the upper chamber, decreasing the downward force exerted on the plunger. When the downward force is less than the upward force, the spring forces the plunger upwards into an open configuration, which unseals the diaphragm release aperture. When the upward force is less than the downward force, the plunger remains in a closed configuration, which keeps the diaphragm release aperture sealed.

A unit (10) for the regulation or control of a fluid pressure, having at least one housing section (13, 14) and a switching film (22) connected to the at least one housing section (13, 14) for switching at pressure differentials relative to an ambient pressure acting on the switching film (22), and for the regulation, release or blocking of a flow of the fluid between an inlet (28) and a discharge (30) for the fluid. The switching film (22) is made out of a polymer material having fluorine and carbon. In this arrangement, a hole cross-section (40) of the at least one housing section (13, 14) is closed off by the switching film (22). A method of forming a fluid-tight connection is also disclosed.

A unit for regulating or controlling a fluid pressure has a valve housing with an inlet and an outlet. A switching film is disposed in the valve housing and switches at pressure differences of 1 mbar to 250 mbar for regulating, opening or blocking a flow of a fluid from the inlet to the outlet. The switching film is formed of a fluorine and carbon containing polymer material. The switching film has a plate-shaped flat body with a bending region and has a central closure region surrounded by the bending region. The bending region, when switching the switching film, moves the central closure region relative to a valve seat of the valve housing in an axial direction of the plate-shaped flat body toward or away from the valve seat by a low-stretch bending movement. A switching film for such a unit is provided also.

An oil jet for a turbine engine, comprising a body including a circulation pipe intended for the flow of a pressurized fluid. The jet's body comprises a first part and a second part between which a resiliently deformable membrane is inserted, said membrane being capable of deforming between a sealed position in which it prevents the circulation of the fluid in the pipe and a position in which it allows the circulation of fluid in the pipe. The second part includes bearing means configured to exert a force on the membrane positioned in the opposite direction to the circulation of fluid so as to preload the membrane when in blocked position.

A cushioned relief valve includes a housing, a piston, a cylinder cover, and a flexible diaphragm. The housing has an inlet, an interior, an outlet channel, and an outlet, the interior being a hollow cylinder in fluid communication with the inlet and the outlet channel, the outlet channel extending from a cylindrical side of the hollow cylinder to the outlet, the outlet opening outside the housing. The piston is located within the hollow cylinder and is slidable between a first position blocking the inlet and the outlet channel, and a second position opening a path for fluid flow between the inlet and the outlet channel. The cylinder cover defines a compressible gas volume in fluid communication with the second end of the hollow cylinder. The flexible diaphragm separates the compressible gas volume of the cylinder cover from the second end of the hollow cylinder.

A cushioned relief valve includes a housing, a piston, a cylinder cover, and a flexible diaphragm. The housing has an inlet, an interior, an outlet channel, and an outlet, the interior being a hollow cylinder in fluid communication with the inlet and the outlet channel, the outlet channel extending from a cylindrical side of the hollow cylinder to the outlet, the outlet opening outside the housing. The piston is located within the hollow cylinder and is slidable between a first position blocking the inlet and the outlet channel, and a second position opening a path for fluid flow between the inlet and the outlet channel. The cylinder cover defines a compressible gas volume in fluid communication with the second end of the hollow cylinder. The flexible diaphragm separates the compressible gas volume of the cylinder cover from the second end of the hollow cylinder.