A turbocharger (1) including a twin scroll turbine and a valve assembly (40, 140) disposed in the exhaust gas inlet (24, 124) that is configured to control the flow exhaust gas through the turbine. The valve assembly (40, 140) includes two rotary valves (60, 160, 80, 180) actuated by a common valve shaft (44, 144). One of the valves (60, 180) may control exhaust gas flow to a volute or between volutes, and the other (80, 160) may control wastegate exhaust gas flow. The valve shaft (44, 144) is driven by an actuator to rotate about the valve shaft rotational axis (46, 146) such that the first valve (60, 160) and the second valve (80, 180) can each be selectively moved between a closed position and an open position, and the time sequence order of opening of the first valve (60, 160) and the second valve (80, 180) is selectable.

A multi-orifice plate flow valve system is disclosed which comprises a flow control valve including a multi-orifice plate and a plurality of gear wheels. The flow rate through the valve system can be adjusted through a gear train manually via a handle and/or automatically via a motor. Orifices having different size apertures can be rotated into the transport path within the same flow control valve. The multi-orifice plate can include setting indicators, which visually communicates to a user the size of orifice aperture in the transport path. In some embodiments, a pressure transducer and/or gear position sensor can provide determination of flow rate through the valve system.

A ceramic valve unit for a beverage machine including a housing, a water inlet pipe for receiving hot water, an outflow opening, and first and second ceramic elements within the housing. The first and second ceramic elements each have mutually abutting surfaces and are relatively movable in a plane common to the abutting surfaces. The plane common to the abutting surfaces is downstream of the water inlet pipe and the first ceramic element, but upstream of the second ceramic element and the outflow opening. The first ceramic element has at least differently sized first and second openings for allowing a liquid flow there through. The second ceramic element has only a single liquid flow opening permanently aligned with the outflow opening. The first ceramic element is selectively slidable between at least first and second different positions preferably in a path of movement about a centre of rotation beyond the boundaries of the first ceramic element.

A blast gate for a vacuum system includes a chassis connectable to a duct and defining a flow passage therethrough, and a gate connected to the chassis and rotatable about a central axis. The gate includes a first portion, an intermediate portion and a second portion spaced apart circumferentially about the central axis. The first portion defines a flow aperture, the intermediate portion defines an auxiliary flow aperture, and the second portion includes a partition. Each of the first portion, second portion and third portion is selectively rotatable into fluid alignment with the flow passage. The blast gate further includes a motor connected to the gate and selectively operable to rotate the gate about the central axis.

A valve for use in a tank vessel that includes a valve housing configured to fit into a threaded vent opening of the tank vessel and a sleeve weldment coupled to the valve housing. The sleeve weldment includes a first end configured to protrude into an interior volume of the tank vessel, and the first end is thermally balanced with the interior volume of the tank vessel. The valve also includes a valve plunger configured to be installed within the sleeve weldment. The valve plunger includes a valve bottom configured to seal an opening between the valve bottom and an interior opening of the sleeve weldment. The valve also may include a cam configured to force the valve plunger into the interior of the tank vessel to break the seal between the valve bottom and the interior opening of the sleeve weldment.

An axial piston pump may comprise a valve plate assembly including a plurality of valve plates rotatably disposed adjacent to each other and configured to control the flow of fluid between a piston chamber and inlet and outlet port passages. The piston pump may also comprise a swashplate arrangement that is capable of being angled in two different directions to be used in combination with the valve plate assembly. A fixed displacement axial piston pump may also comprise the valve plate assembly disclosed herein in which pressure transitions are facilitated in the same fashion, but without the variable of changing swashplate angles which control pump flow.

According to an aspect, a gas supply mechanism for supplying a gas to a semiconductor manufacturing apparatus is provided. The gas supply mechanism includes a pipe connecting a gas source and the semiconductor manufacturing apparatus to each other, and a valve which is provided on the pipe. The valve includes a plate rotatable about an axis, the axis extending in a plate thickness direction, and a housing provided along the plate without contacting the plate to accommodate the plate, the housing providing a gas supply path along with the pipe. A through hole is formed in the plate, the through hole penetrating the plate at a position on a circle which extends around the axis and intersects the gas supply path.

An actuated rotary valves for reciprocating compressors used in oil and gas industry, the valve including a stator with a stator opening, a rotor with a rotor opening, and an actuation mechanism. The actuation mechanism is configured to receive a rotation motion and to actuate the rotor to perform first an axial translation moving away from the stator and then a rotation. The actuation mechanism includes an outer shaft configured to receive the rotation motion, and an inner shaft inside the outer shaft and configured to rotate the rotor. The outer shaft is configured to rotate a predetermined angular displacement while pushing the rotor away from the stator before engaging the inner shaft to rotate together with the rotor.

A refrigerant valve device may include a base provided with an inlet port, an outlet port and a valve seat face; a cover to section a valve chamber between the valve seat face and the cover; a valve body turnably disposed at a position shifted to a side of one port inside the valve chamber, the valve body being provided with a contact face sliding on the valve seat face; and a valve body drive mechanism to turn the valve body. The valve body drive mechanism may turn the valve body and thereby a refrigerant flowing passage from the inlet port to the outlet port through the valve chamber is switched at least to a first refrigerant flowing passage and to a second refrigerant flowing passage. The refrigerant flowing amount in the first refrigerant flowing passage may be smaller than a refrigerant flowing amount in the second refrigerant flowing passage.

A turbocharger system is disclosed, including a turbine and compressor and a rotary valve unit. The rotary valve unit comprises a fixed valve seat and a rotary valve member arranged coaxially with the valve seat. The valve member is disposed against the valve seat and is rotatable about the axis for selectively varying a degree of alignment between respective orifices in the valve seat and valve member. The valve unit includes a valve housing that defines a first flow passage and a second flow passage, and the valve member and valve seat are disposed in the second flow passage. A turbocharger system is also disclosed, including a turbine and compressor and the rotary valve unit. The rotary valve unit is coupled with the turbine such that exhaust gas that has passed through the turbine wheel is fed into the first flow passage of the rotary valve unit, and exhaust gas that has bypassed the turbine wheel is fed into the second flow passage of the rotary valve unit.