The invention relates to a 3-port valve for passing fluids therethrough, having a valve body, a port, a first sub-port and a second sub-port, with the port being adjoined by a main line which ends in a connecting region, said first sub-port having a first sub-port line that is connected to the connecting region, said second sub-port having a second sub-port line that is connected to the connecting region, with at least one valve member being arranged in the connecting region, which valve member can be displaced along a valve member axis between an opening position and a closed position thereof in the connecting region, so that, in a first valve position, the port is fluidically connected to the first sub-port, in a second valve position, the port is fluidically connected to the second sub-port, in a third valve position, the port is fluidically connected to both the first and second sub-ports, in a fourth valve position, the port is fluidically connected neither to the first sub-port nor to the second sub-port. The invention is characterized in that the valve body is formed from a high-tempered steel, or other suitable material, with the valve body being produced from a solid ingot and with the connecting region, the main port, the first sub-port line and the second sub-port line having been machined into the steel ingot. Heat transfer medium lines for passing a HTM therethrough are also machined into the same valve body to regulate the temperature of the fluid. Simultaneously or alternatively, electric heating cartridge receptacles may be machined into the valve body ingot.

A bypass valve assembly includes a housing having an inlet, an outlet, and a flow passageway to allow flow of a liquid from the inlet to the outlet and a valve seat disposed about the flow passageway between the inlet and the outlet. A movable poppet is disposed in the housing to engage the valve seat in a closed position and to disengage the valve seat in an open position when pressure of the liquid in the flow passageway exceeds a preset value to allow flow of the liquid through the flow passageway. A rotatable flow control valve is disposed in the housing between the inlet and the outlet. An actuator is coupled to the flow control valve to actuate and move the flow control valve to control flow of the liquid between the inlet and the outlet when the poppet is engaged with the valve seat.

A hydraulic arrangement for a vehicle transmission includes a hydraulic pump for providing a system pressure for a first hydraulic system circuit and a lubrication pressure for a second hydraulic lubrication circuit. The arrangement also includes a control valve connected between a pump outlet of the pump and the two hydraulic circuits and has two different switching positions. The control valve, depending on its switching position, acts as a hydraulic connection between the pump and the system circuit or between the pump and the lubrication circuit.

The present invention discloses a novel double-valve continuous circulating valve with a clamping device, comprising a main through valve (5), a pup joint body (8), a middle connector (11) and a bypass valve (12); the main through valve seat (4), the main through valve (5) and the main through valve spring (6) are press-fitted in the pup joint body (8) through a main through valve limiting device (1); a bypass valve seat (10) is arranged at the lower side of the pup joint body (8), and the bypass valve (12) is mounted and fixed to the bypass valve seat (10) through a bypass valve limiting device (9); the middle connector (11) is press-fitted on the pup joint body (8) through a clamping device. The present invention solves the technical problems of dangerous incidents caused by the suspension of circulating medium.

A fluid end assembly comprising a plurality of fluid end sections positioned in a side-by-side relationship. Each fluid end section comprises a housing made of multiple-piece construction. One or more pieces of the housing are configured to have a plurality of stay rods attached thereto. The stay rods interconnect the fluid end assembly and a power end assembly.

A high pressure pump. The pump comprises a fluid end assembly supported on a power end assembly. The power end assembly is modular and held together by a first set of stay rods. The fluid end assembly comprises a plurality of fluid end sections positioned in a side-by-side relationship. Each fluid end section comprises a housing made of multiple-piece construction. One or more pieces of the housing are configured to having a second set of stay rods attached thereto. The second set of stay rods interconnect the fluid end assembly and a power end assembly and a vertically offset from the first set of stay rods.

A fluid routing plug for use with a fluid end section. The fluid end section being one of a plurality of fluid end sections making up a fluid end side of a high pressure pump. The fluid routing plug is installed within a horizontal bore formed in a fluid end section and is configured to route fluid throughout the fluid end section.

An inner subassembly for assembling a valve assembly includes a spool defining a central bore that extends axially through the spool forming a spool annular wall, and including a spool cone tip that is disposed at the first axial end, as well as a hydraulic activation ridge extending radially outwardly from the spool annular wall, and that is disposed axially between the second axial end and the first axial end. The spool may further define a first bypass bore. A stem defines a first flow bore that aligns with the first bypass bore.

A power end assembly includes a crankshaft section, a crosshead section, and a connector section coupled together by one, two, or more sets of stay rods. The power end may include one or more support plates that are coupled to the crankshaft section and/or crosshead section. The crosshead section includes a plurality of individual crosshead frames. The connector section may include a plurality of individual connector plates or may be a unitary connector plate. The power end is configured to be coupled to a fluid end assembly by coupling the fluid end assembly to the connector plates.

A dynamic control valve assembly for use in filling a liquid carbon dioxide storage and gas delivery system is provided, the assembly comprising: a valve body; an end nut with an inlet port for receiving liquid carbon dioxide; a chamber; an inlet cavity; a liquid port; a gas port; and a dynamic compound valve stem assembly for blocking the gas port while liquid carbon dioxide is delivered through the inlet port and allowing the liquid carbon dioxide to flow through the liquid port for storage in a liquid cylinder, and open the gas port and block the inlet port in order to allow carbon dioxide gasses from boiling liquid carbon dioxide within the liquid cylinder to pass through the gas port for storage in a gas cylinder until system pressure and temperature equilibrium is reached. The dynamic compound valve stem assembly comprises: a stem body having an inlet port poppet and a gas port poppet; an inlet cavity collar; and in some embodiments a collar biasing spring. The compound valve assembly is adapted to block the inlet port upon completion of the delivery of liquid carbon to the system when the system has an initial low pressure. The carbon dioxide gas may then be drawn from the gas cylinder for use in use in carbonated beverages and other applications such as agricultural and medical uses.