The present invention relates to sealing valves that can be mounted within a container wall, enabling controlled fluid flow along both inner and outer surfaces of the sealing valve in the same distal direction.

A cylinder piston for an air compressor, in particular for a two-stage air compressor, has at least two channel openings integrated in the piston surface of the cylinder piston, which are designed as an inlet valve and/or as an outlet valve for air in a compression chamber of the cylinder. A coherent, one-piece and flexible bending sealing element is provided inside or covering the channel openings. The sealing element for the at least two or a plurality of channel openings enables an inflow into a channel opening or outflow from a channel opening, wherein the at least two channel openings through the flexible bending sealing element can be designed independently of one another as an inlet valve or as an outlet valve. Also provided is a cylinder with at least one cylinder piston and an air compressor with such a cylinder.

A vehicle cleaning system includes a drive pump, an ejection nozzle and a valve device. The valve device includes an intake passage, a valve that closes the intake passage and accumulates pressure of the fluid supplied to the intake passage, a discharge passage, and an auxiliary mechanism. The auxiliary mechanism generates leakage of the fluid from the intake passage during the pressure accumulation to accumulate pressure with the leakage at a leaked side, opens the valve body based on two pressures accumulated in the intake passage and the leaked side, outputs the fluid, which is pressure-accumulated in the intake passage, to the discharge passage by opening the valve body, and closes the valve body as the fluid is output to the discharge passage to allow for re-accumulation of the pressure in the intake passage.

The present invention relates to sealing valves that can be mounted between two container walls, enabling controlled fluid flow along the inner surfaces of each of the container walls, separately.

A compressor valve suitable for use in a compressor is provided. The compressor valve comprises a first body member and a second body member. The first body member and the second body member each define a set of suction flow passages in fluid communication with each other between the suction passage and a cylinder of the compressor, and a set of compression flow passages in fluid communication with each other between the cylinder and the discharge passage. The valve includes a suction seal and a compression seal, both located at least partially between the first body member and the second body member. The suction seal is movable between a closed position and an open position. The suction seal is biased to a closed position against the flow of fluid from the suction passage to the cylinder. The suction seal and the compression seal are biased by helical coil springs.

A cylinder piston for an air compressor, in particular for a two-stage air compressor, has at least two channel openings integrated in the piston surface of the cylinder piston, which are designed as an inlet valve and/or as an outlet valve for air in a compression chamber of the cylinder. A coherent, one-piece and flexible bending sealing element is provided inside or covering the channel openings. The sealing element for the at least two or a plurality of channel openings enables an inflow into a channel opening or outflow from a channel opening, wherein the at least two channel openings through the flexible bending sealing element can be designed independently of one another as an inlet valve or as an outlet valve. Also provided is a cylinder with at least one cylinder piston and an air compressor with such a cylinder.

A low pressure valve assembly comprising: an elastomeric material including at least one cut that forms a deformable portion, a first backing material including an inlet, and a second backing material including an outlet, wherein the elastomeric material is between the first backing material and the second backing material, and wherein the deformable portion is configured to deform at a range of pressures including a pressure of less than or equal to about 1 mmH20.

The present invention relates to sealing valves that can be mounted within a container wall, enabling controlled fluid flow along both inner and outer surfaces of the sealing valve in the same distal direction.

A valve assembly (300) comprising a valve body (302) and a mono-material plunger (304). The valve body (302 has a primary opening (314) and a secondary opening (315) that are axially spaced apart. The plunger (304) comprises a primary seal 5 portion (316) and a secondary seal portion (317). The plunger (304) comprises the following operational positions with respect to the valve body: a transit seal position in which the primary seal portion (316) of the plunger (304) is in contact with the valve body (302) in order to occlude the primary opening (314); and a fluid flow position in which the plunger (304) is maintained in the fluid flow position by an external force 10 and a force caused by a pressure differential across the valve assembly (300).

The present invention relates to sealing valves that can be mounted between two container walls, enabling controlled fluid flow along the inner surfaces of each of the container walls, separately.