A flow path switching valve is used in an engine water cooling system mounted on a mounting surface of an engine, and switches a flow path of a cooling water in the engine water cooling system. The engine water cooling system has a block jacket formed on a cylinder block and a head jacket formed on a cylinder head, connected to each other via a communication passage. The cooling water flowing in from an inlet of the block jacket flows into an inlet port of the flow path switching valve from an outlet of the head jacket via the communication passage. An inflow barrier plate is provided, which closes a part of a leak path side of the inlet port to suppress an inflow of the cooling water from the block jacket via a leak path made in the cylinder block and the cylinder head.

A fluid management assembly and a thermal management system. The fluid management assembly has a first chamber and a first valve core located in the first chamber. The fluid management assembly has a throttle chamber. The first valve core has a conduction channel. The first chamber can communicate with other portions by means of a throttle channel or the conduction channel.

A valve for use in a gas turbine. The valve includes at least one valve body, at least first, second and third fluid delivery pipes positioned on the valve body, at least one outlet pipe positioned on the valve body and a rotatable spherical shutter inside the valve body (and including first and second distribution channels formed within the shutter so as to allow the outlet pipe to be selectively connected to one of the delivery pipes during rotation of the shutter.

A rotary valve and a quick exhaust valve for a railway vehicle in which high sealability and operability at the time of valve opening and closing are ensured. Outflow/inflow ports (10, 11) and a discharge port (12) are formed in a valve body accommodating part having a spherical surface part or a tapered surface part formed on part of an inner periphery in a body (2), and a valve body (3) is rotatably inserted from an opening which is open from the valve body accommodating part. A spherically-shaped surface part or a tapered-shaped surface part is formed at a position opposing the spherical surface part or the tapered surface part, a plurality of through ports communicating the outflow/inflow ports or the discharge port and an attachment groove opposing the outflow/inflow ports in a direction crossing the through ports are formed, and a seal member is attached to the attachment groove.

A ball valve apparatus with an improved linearity of fluid flow therethrough is provided. The ball valve includes a valve housing including a housing inlet and a housing outlet; a valve ball receivable within the valve housing, the valve ball having a bore therethrough, a ball inlet and ball outlet of the valve ball which are in fluid communication with the bore, a fluid flow path through the ball valve apparatus being defined at least in part by the housing inlet, housing outlet, ball inlet, ball outlet and the bore. There is also provided a valve stem engagable with the valve ball and. To control the fluid flow through the apparatus such that there is a linear or substantially linear relationship between at the angular position of the valve ball and the fluid flow through the apparatus, there may be provided at least one bridging element, positioned on the fluid flow path to alter a fluid flow thereacross and/or ball outlet, and/or at least one of the ball inlet and ball outlet may have a non-circular profile. A ball valve for such an apparatus is also provided, in addition to method of improving the linearity of fluid flow through a ball valve apparatus.

A rotary valve includes a first ball valve including a first stem extending from a first proximal stem end to a first distal stem end outward from the first ball valve. The first stem including a first slotted opening extending from the first distal stem end into the first stem. The rotary valve includes a second ball valve including a second stem extending from a second proximal stem end to a second distal stem end outward from the second ball valve. The second stem including a second slotted opening extending from the second distal stem end into the second stem, wherein the second stem extends towards the first stem. The rotary valve includes a drive key located within the first slotted opening and the second slotted opening. The drive key extending from the first slotted opening of the first ball valve to the second slotted opening of the second ball valve to operably connect the first ball valve to the second ball valve. The drive key has a non-uniform thickness.

A first flow channel of a flow channel switching valve includes a first portion that is connected to a valve body and that is linear, a second portion that is connected such that the second portion is perpendicular to the first portion and that is linear, and a lid member that is joined such that the lid member covers an opening of a tip end of the first portion. The first flow channel also includes a pair of projecting portions that is disposed such that the projecting portions interpose the first portion therebetween in a radial direction and face each other, and a connecting portion that couples the pair of projecting portions with each other. The pair of projecting portions includes a planar surface portion that faces the valve body direction.

A coolant control regulator assembly that comprises a plurality of modular housings, an actuator, and a plurality of ball valves. The actuator is operatively connected to at least one of the plurality of modular housings. Each of the modular housings comprises an internal cavity, at least one inlet port, and at least one outlet port. Further, each of the internal cavities includes one of the plurality of ball valves positioned therein. At least one of the plurality of ball valves comprises a plurality of apertures that are configured to align with the at least one inlet port and the at least one outlet port in certain rotational positions.

The present disclosure describes a bi-valve for use with a flowmeter or other source of oxygen or other medical gas, that allows a medical practitioner to easily and quickly switch from delivering oxygen or other gas from the flowmeter or other gas source to a given mask or other device, to another mask or other device. This is accomplished far faster and easier than is done under current practice. Current practice results in the patient being off oxygen or other gas for a short, but very significant period of time, which poses a serious risk of desaturation in the patient. The bi-valve may include a casing, an inlet, and two outlets, with a knob for selecting which output the oxygen or other gas is to be delivered to. The device may be a very simple ball valve device, with the only moving parts being the knob and the ball.

A multiport valve, having a housing having at least two connectors, a control element for blocking at least one of the connectors, the control element disposed to be rotatable in a recess of the housing. An external contour of the control element has a compression portion which in at least one first position of the control element compresses a first seal disposed on a first one of the connectors. The external contour of the control element has a decompression portion that has a smaller radius than the compression portion and in at least one further position of the control element lies opposite the first seal such that the control element compresses the first seal to a lesser extent than in the first position.