Abstract:
A valve actuator is a valve actuator that drives opening and closing of a poppet valve and includes a motor and a transmission mechanism that transmits a drive force of the motor to the poppet valve. The transmission mechanism includes a booster mechanism. The booster mechanism is a three-dimensional toggle mechanism that includes a cylinder, an input disc that rotates about an axis in the cylinder, an output disc that reciprocates along an axial direction in the cylinder, and a link that connects the input disc and the output disc.
Abstract:
A valve assembly for operation within a valve body of a pump includes an axial centerline, a poppet guide having a stem, and a poppet slidingly coupled to the poppet guide so that the poppet and the poppet guide define an internal cavity. The valve assembly also includes a flexible poppet guide mounting system coupled to the poppet guide and the poppet and includes a variable-area flow restrictor in fluid communication with the internal cavity. The flexible poppet guide mounting system is configured to support the poppet guide and the poppet for lateral and axial movement of the poppet guide and the poppet relative to the axial centerline. The poppet is movable relative to the poppet guide to adjust the volume of the internal cavity.
Abstract:
A valve member for a poppet valve is provided. The valve member may include a valve stem, a valve head, a face formed on the valve head, a sealing surface disposed between the face and the perimeter of the valve head, a tapered socket, and a bevel. The valve stem may include an outside surface defining a stem diameter. The valve head may include a maximum diameter greater than the stem diameter. The face may be formed on the valve head opposite the valve stem. The sealing surface may include a transition ring disposed between the perimeter of the face and the maximum diameter of the valve head. The tapered socket may be disposed in an end of the valve stem, defining an opening with a socket perimeter sized to receive a spring therein.
Abstract:
A system, including a compressor including a cylinder comprising a chamber, a first axial end portion, and a second axial end portion, and a piston disposed within the chamber of the cylinder, wherein the piston is configured to reciprocate along a cylinder axis between the first and second axial end portions, and a co-axial flow device coupled to compressor, wherein the co-axial flow device comprises a first wall disposed about a first passage along an axis, a second passage disposed about the first wall along the axis, and a second wall disposed about the second passage along the axis, wherein the first passage comprises a first axial opening in fluid communication with the chamber while the piston moves in a first axial direction, and the second passage comprises a second axial opening in fluid communication with the chamber while the piston moves in a second axial direction opposite from the first axial direction.
Abstract:
A combined compressor pressure sensor and excess pressure relief valve (12) uses a formed disk (22) that snaps down and back up at a pair of predetermined pressures. The disk 922), when it snaps down, opens a plug (34) to in turn allow excess pressure from the compressor (10) to escape. When up, the plug (34) remains sealed, the outside vents (42) remain blocked, and compressor gas flow only through the center of the plug (34) and disk (22) to a sensing chamber (46).
Abstract:
Poppet valve (1) for a piston compressor, comprising a valve body (2) with a plurality of inlet ducts (2a), wherein each inlet duct (2a) has an inlet section (2e) and an outlet section (2f), wherein the outlet section (2f) opens into a valve seat (7a), wherein each inlet duct (2a) is assigned a closing element (4) and a spring (5), wherein the closing element (4) can be moved in an axial direction (A) in such a way that the valve seat (7a) can be closed by way of the closing element (4), wherein the spring (5) has a first spring end section (5a) and a second spring end section (5b), wherein the spring (5) is arranged in the inlet duct (2a) and bears with the first spring end section (5a) against and is held on the inlet section (2e) of the inlet duct (2a), and wherein the second spring end section (5b) is connected to the closing element (4), in order to bring about a prestressing force on the closing element (4), which prestressing force is oriented towards the valve seat (7a).
Abstract:
A compressor valve may include a guard and a seat affixed thereto. The seat may have an inlet surface and an outlet surface opposite the inlet surface. A reconditioning limit indicator may be defined by or adjacent the outlet surface. The reconditioning limit indicator may be indicative of a maximum amount of material of the seat removable from the outlet surface during reconditioning of the seat. The reconditioning limit indicator may be a groove defined by the outer cylindrical surface of the seat, a portion of the outer cylindrical surface of the seat adjacent the outlet surface and having an outer diameter smaller than the outer diameter of the seat, or a predetermined shape of a predetermined depth machined on the outlet surface of the seat.
Abstract:
A cryogenic pump 2 is typically used to supply high pressure natural gas to an engine. The pump 2 has a piston 6 operable to discharge cryogenic liquid from a pumping chamber 8 within a pump housing 4. The cryogenic liquid exits the chamber 8 through an outlet port 10 in which a check valve 12 is positioned. The check valve 12 has a valve member 14 which is loaded by a spring 28 and is retained by a retaining member 16 accessible from outside the housing 4. The check valve 12 has an inlet 18 which is axial with the valve member 14 and an outlet 20 which is transverse to the axis of the valve member 14.
Abstract:
A novel valve assembly is provided. In one embodiment, the valve assembly includes a seat plate having a plurality of fluid conduits. The valve assembly may also include a plurality of poppet assemblies. In some embodiments, a poppet assembly of such a plurality includes at least one fluid port and a housing configured to be coupled to the seat plate to facilitate flow of a fluid through a respective fluid conduit via the at least one fluid port of the respective poppet assembly. Other devices, systems, and methods related to poppet assemblies are also disclosed.