Ring disc nozzle check valve 100 allows fluid flow in one direction and can act as a relief valve and comprises valve body 1 which defines valve body fluid passageways 20,22 therethrough; primary seat 2 disposed in valve body fluid passageways 20,22 proximate fluid inlet 30; primary disc 4 disposed in valve body fluid passageways 20,22 proximate fluid inlet 30 and in communication with primary seat 2; secondary disc 5 nested within valve body fluid passageways 20,22, where secondary disc 5 defines secondary seat 3 at a peripheral edge of primary disc 4; diffuser 8 disposed in the valve body fluid passageway 20 proximate fluid outlets 32a,32b; primary spring 10 disposed in valve body fluid passageways 20,22 and in communication with diffuser 8 and primary disc 4, where primary spring 10 is adapted to urge primary disc 4 to a closed position; primary shaft 6 disposed within valve body fluid passageway 22 intermediate diffuser 8 and secondary disc 5, where primary shaft 6 is in communication with diffuser 8 and adapted to support and guide primary disc 4 and allow fluid flow through primary shaft 6; secondary shaft 7 disposed within valve body fluid passageway 22 and configured to support and guide secondary disc 5; secondary spring 11 disposed intermediate secondary shaft 7 and secondary disc 5 and configured to urge secondary disc 5 to a closed position; inner body valve seat support 9, which may act as a retention ring, disposed proximate to fluid outlets 32a,32b and configured to do not disrupt fluid flow within ring disc nozzle check valve 100 as the fluid passes over primary disc 4 and/or secondary disc 5; and one or more fasteners 12 configured to secure retention ring 9 to valve body 1.

Ring disc nozzle check valve 100 allows fluid flow in one direction and can act as a relief valve and comprises valve body 1 which defines valve body fluid passageways 20,22 therethrough; primary seat 2 disposed in valve body fluid passageways 20,22 proximate fluid inlet 30; primary disc 4 disposed in valve body fluid passageways 20,22 proximate fluid inlet 30 and in communication with primary seat 2; secondary disc 5 nested within valve body fluid passageways 20,22, where secondary disc 5 defines secondary seat 3 at a peripheral edge of primary disc 4; diffuser 8 disposed in the valve body fluid passageway 20 proximate fluid outlets 32a,32b; primary spring 10 disposed in valve body fluid passageways 20,22 and in communication with diffuser 8 and primary disc 4, where primary spring 10 is adapted to urge primary disc 4 to a closed position; primary shaft 6 disposed within valve body fluid passageway 22 intermediate diffuser 8 and secondary disc 5, where primary shaft 6 is in communication with diffuser 8 and adapted to support and guide primary disc 4 and allow fluid flow through primary shaft 6; secondary shaft 7 disposed within valve body fluid passageway 22 and configured to support and guide secondary disc 5; secondary spring 11 disposed intermediate secondary shaft 7 and secondary disc 5 and configured to urge secondary disc 5 to a closed position; inner body valve seat support 9, which may act as a retention ring, disposed proximate to fluid outlets 32a,32b and configured to do not disrupt fluid flow within ring disc nozzle check valve 100 as the fluid passes over primary disc 4 and/or secondary disc 5; and one or more fasteners 12 configured to secure retention ring 9 to valve body 1.

A check valve includes a housing, a first valve, and a second valve. The housing has a first portion that defines a first chamber and a second portion that defines a second chamber. The first valve is disposed within and is movable relative to the housing. The second valve is at least partially extends into the first valve. Responsive to a fluid flow in a first direction, the second valve and the first valve moves towards a proximal end of the housing and the fluid flow flows around the first valve towards a component.

A check valve includes a housing, a first valve, and a second valve. The housing has a first portion that defines a first chamber and a second portion that defines a second chamber. The first valve is disposed within and is movable relative to the housing. The second valve is at least partially extends into the first valve. Responsive to a fluid flow in a first direction, the second valve and the first valve moves towards a proximal end of the housing and the fluid flow flows around the first valve towards a component.

A check valve includes a housing, a first valve, and a second valve. The housing has a first portion that defines a first chamber and a second portion that defines a second chamber. The first valve is disposed within and is movable relative to the housing. The second valve is at least partially extends into the first valve. Responsive to a fluid flow in a first direction, the second valve and the first valve moves towards a proximal end of the housing and the fluid flow flows around the first valve towards a component.

A check valve includes a housing, a first valve, and a second valve. The housing has a first portion that defines a first chamber and a second portion that defines a second chamber. The first valve is disposed within and is movable relative to the housing. The second valve is at least partially extends into the first valve. Responsive to a fluid flow in a first direction, the second valve and the first valve moves towards a proximal end of the housing and the fluid flow flows around the first valve towards a component.

Check valve assembly (1, 1) for a shock absorber (100) comprising a housing (10). The housing (10) comprises a first volume (11), wherein a pressure P1 prevails; a second volume (12), wherein a pressure P2 prevails; a first housing portion (VE1), and a second housing portion (VE2). The housing (10) further comprises a fluid passage (20) between said first (11) volume and said second (12) volume; and a spool (40), said spool (40) being movably arranged in said housing (10) between at least a first position in which a flow of fluid through said fluid passage (20) between the first (11) and second (12) volume is allowed and at least a second position in which a flow of fluid through said fluid passage (20) between the first (11) and second (12) volume is prevented. The spool (40) comprises a first portion (S1) adapted to engage with said first portion (VE1) of said valve housing 10, forming a first region of engagement (RE1), and a second portion (S2) adapted to engage with said second portion (VE2) of said valve housing (10), forming a second region of engagement (RE2). Further, the first region of engagement (RE1) is arranged at a first location and said second region (RE2) is arranged at a second location. Also, a shock absorber (100) comprising a working cylinder (C) adapted to receive a working fluid, a piston dividing said cylinder (C) into a first (WC1) and a second (WC2) working chamber and a check valve assembly (1, 1) according to above. Further, a front fork comprising such a check valve assembly (1, 1).

Check valve assembly (1, 1) for a shock absorber (100) comprising a housing (10). The housing (10) comprises a first volume (11), wherein a pressure P1 prevails; a second volume (12), wherein a pressure P2 prevails; a first housing portion (VE1), and a second housing portion (VE2). The housing (10) further comprises a fluid passage (20) between said first (11) volume and said second (12) volume; and a spool (40), said spool (40) being movably arranged in said housing (10) between at least a first position in which a flow of fluid through said fluid passage (20) between the first (11) and second (12) volume is allowed and at least a second position in which a flow of fluid through said fluid passage (20) between the first (11) and second (12) volume is prevented. The spool (40) comprises a first portion (S1) adapted to engage with said first portion (VE1) of said valve housing 10, forming a first region of engagement (RE1), and a second portion (S2) adapted to engage with said second portion (VE2) of said valve housing (10), forming a second region of engagement (RE2). Further, the first region of engagement (RE1) is arranged at a first location and said second region (RE2) is arranged at a second location. Also, a shock absorber (100) comprising a working cylinder (C) adapted to receive a working fluid, a piston dividing said cylinder (C) into a first (WC1) and a second (WC2) working chamber and a check valve assembly (1, 1) according to above. Further, a front fork comprising such a check valve assembly (1, 1).

Check valve assembly (1, 1) for a shock absorber (100) comprising a housing (10), said housing (10) comprising a first volume (11), wherein a first pressure (P1) prevails; a second volume (12), wherein a second pressure (P2) prevails; a fluid passage (20) between said first (11) volume and said second (12) volume; and a spool (40) movably arranged in said housing (10) for movement back and forth between an first position, in which a flow of fluid through said fluid passage (20) is allowed, and a second position, in which the spool (40) closes the fluid passage (20). The check valve assembly further comprises a first biasing means (50) configured to bias the spool (40) towards the second position through at least first operational range (OR1) of the spool (40) in which first operational range the fluid passage (20) is open. Also, the check valve assembly comprises a second biasing means (51) configured to bias the spool (40) towards the first position partly through a second operational range (OR2) of the spool (40) in which second operational range (OR2) the fluid passage (20) is closed. The first biasing means forces the spool from its open position at least to its closed position for closing the passage.

A valve for reciprocating compressors having a valve seat provided with first gas flow passages extending across, a valve guard having second gas flow passages extending across and at least one movable sealing element arranged between the valve guard and the valve seat and configured to move between a closed position, in which the passage of fluid is prevented, and an open position in which the passage of fluid is allowed. The movable sealing element is resiliently biased by resilient members against the valve seat to close the first gas flow passages and the valve seat and the valve guard are relatively movable to define a variable gap or lift for the sealing element.