A fuel nozzle metering valve that includes a spool having an inlet port and an outlet flow port, and a retainer assembled to one end of the spool. A valve liner houses a portion of the spool. The spool is configured to move back and forth within the valve liner. The metering valve is biased in a closed position in which the outlet flow port is disposed entirely within the valve liner. The valve is opened when the spool slides within the valve liner such that some portion of the outlet flow port extends beyond an end of the valve liner. The retainer has a stepped portion configured to abut an end of the retainer at a fuel flow pressure below the expected maximum fuel flow pressure to be used in the fuel nozzle metering valve.

A charge valve assembly for an air conditioning system includes a valve housing having a first end, a second end, and an inner surface defining a cavity. A valve core assembly is received in the cavity of the valve housing through the second end of the valve housing. The valve core assembly has a first end, a second end, a flow channel extending from the first end of the valve core assembly to the second end of the valve core assembly, an inner sealing surface, and a pin slideably received in the flow channel between an open position and a closed position. The pin has a primary seal selectively engaging the inner sealing surface of the valve core assembly and closing the flow channel at the second end of the valve core assembly when in the closed position. The pin biases towards the first end of the valve housing.

A gas valve that can be opened using a trigger mechanism. When triggered, the valve is preferably configured to deliver a rapid release of air and then reset itself in the closed state. Once in the closed state, pressure may again be built on the upstream side of the valve until another release is desired.

A fluid control valve with mechanical switch is a tube body having a seat portion in the through hole. A rod body passes through the bore of the seat portion, with two ends of the rod body provided with a block member and a valve plate, respectively. The rod body has an elastic member between the seat portion and the block portion, and another elastic member between the seat portion and the valve plate. The rod body further includes an adjustment member for adjusting the compression level of at least one elastic member, so as to adjust the prestress difference between the two elastic members, thereby adjusting the valve plate to normally open or close according to the movement of the rod body.

A fuel nozzle metering valve that includes a spool having an inlet port and an outlet flow port, and a retainer assembled to one end of the spool. A valve liner houses a portion of the spool. The spool is configured to move back and forth within the valve liner. The metering valve is biased in a closed position in which the outlet flow port is disposed entirely within the valve liner. The valve is opened when the spool slides within the valve liner such that some portion of the outlet flow port extends beyond an end of the valve liner. The retainer has a stepped portion configured to abut an end of the retainer at a fuel flow pressure below the expected maximum fuel flow pressure to be used in the fuel nozzle metering valve.

A valve assembly comprising a valve seat, a valve body, a valve spring, and a valve guide, wherein the valve seat and/or a valve seat housing in which the valve seat is seated comprises a plurality of grooves; wherein the valve body comprises a first side comprising a valve seat contact surface, and a second side comprising a coupler actuating feature; and wherein the valve guide comprises a coupler, and a plurality of wings, wherein the valve guide comprises a valve guide end distal the coupler, wherein, when the valve guide is coupled to the valve body via the coupler, the valve guide end distal the coupler extends a greater radial distance from the central axis of the valve body than the plurality of wings, and wherein the valve guide can be coupled to or decoupled from the valve body via the coupler by actuating the coupler actuating feature.

A fuel nozzle metering valve that includes a spool having an inlet port and an outlet flow port, and a retainer assembled to one end of the spool. A valve liner houses a portion of the spool. The spool is configured to move back and forth within the valve liner. The metering valve is biased in a closed position in which the outlet flow port is disposed entirely within the valve liner. The valve is opened when the spool slides within the valve liner such that some portion of the outlet flow port extends beyond an end of the valve liner. The retainer has a stepped portion configured to abut an end of the retainer at a fuel flow pressure below the expected maximum fuel flow pressure to be used in the fuel nozzle metering valve.

A flow regulating valve and a compressor with the flow regulating valve are disclosed. The flow regulating valve includes: a valve seat in which a passage is formed to allow fluid to enter; a guide member protruded outwards from the valve seat; a piston which is disposed on the outside of the valve seat, forms a fluid inlet with the valve seat, and is capable of being reciprocated along the guide member; and a biasing member biasing the piston in a direction away from the valve seat. A force exerted by the incoming fluid on the piston is opposite in direction to a biasing force exerted by the biasing member on the piston. The piston is able to be moved to different positions under the action of different forces to form fluid inlets of different widths with the valve seat, thereby controlling the mass flow rate of the incoming fluid (especially liquid). With the technical solutions of the present invention, the flow rate of the fluid entering the compressor can be effectively adjusted with a simple structure and low cost.

A valve assembly comprising a valve seat, a valve body, a valve spring, and a valve guide, wherein the valve seat and/or a valve seat housing in which the valve seat is seated comprises a plurality of grooves; wherein the valve body comprises a first side comprising a valve seat contact surface, and a second side comprising a coupler actuating feature; and wherein the valve guide comprises a coupler, and a plurality of wings, wherein the valve guide comprises a valve guide end distal the coupler, wherein, when the valve guide is coupled to the valve body via the coupler, the valve guide end distal the coupler extends a greater radial distance from the central axis of the valve body than the plurality of wings, and wherein the valve guide can be coupled to or decoupled from the valve body via the coupler by actuating the coupler actuating feature.

A fuel nozzle metering valve that includes a spool having an inlet port and an outlet flow port, and a retainer assembled to one end of the spool. A valve liner houses a portion of the spool. The spool is configured to move back and forth within the valve liner. The metering valve is biased in a closed position in which the outlet flow port is disposed entirely within the valve liner. The valve is opened when the spool slides within the valve liner such that some portion of the outlet flow port extends beyond an end of the valve liner. The retainer has a stepped portion configured to abut an end of the retainer at a fuel flow pressure below the expected maximum fuel flow pressure to be used in the fuel nozzle metering valve.