A synchronous switch valve core with a voltage stabilizing function, comprising: a valve core housing (1), a valve core base (2), a flow regulating module, and a balancing hydraulic module. The flow regulating module is capable of cutting off a cold/hot water path before water enters a pressure balancing module, thus preventing high-temperature water from immersing the valve core, preventing the building of lime scale, protecting the valve core, and extending the service life; moreover, water flow can enter the pressure balancing module only after flowing through the flow regulating module, thus preventing the channeling of hot and cold, and obviating the need to install a check valve at a water intake elbow. By means of an optimized design with respect to the parts of the synchronous switch valve core, the synchronous valve core is transformed from a switch capable only of regulating flow into a switch not only capable of regulating flow but also capable of synchronized switching, and also capable of balancing the pressures within two channels, thus transforming a product equipped with the vale core from a complex channel into a simple channel, and obviating the need for separately providing a balancing module part; a valve body is structurally simple, has a shortened water path, and is inexpensive.

A sealing valve is provided with a valve seat including a valve hole, a valve element to open and close the valve hole, and a seal member to seal between the valve element and the valve seat during full closing. The seal member includes a fixed part fixed to the valve seat, a contact part to be brought into contact with a seal surface of the valve element, and a constricted part provided between the fixed part and the contact part. The contact part is rotatable about the constricted part.

A valve for controlling a fluid flow includes a valve body, a shutter component configured to be able to transition from an open position allowing the circulation of fluid, to a closed position preventing the circulation of fluid. The component is characterized in that it includes a fixed conical support integral with the valve body, a conjugate conical flap rotationally movable relative to the fixed support, and fluid passage apertures respectively arranged in the conical flap and in the fixed support, and an actuator of the shutter component adapted to be able to control the position of the shutter component.

An aircraft gas transport system including a high pressure gas supply line having a supply valve, and an equilibrium gas line joined at junctions with the high pressure gas supply line upstream and downstream from the supply valve, and in flow communication with the high pressure gas supply line, the equilibrium gas line having an equilibrium valve and a flow restrictor, the equilibrium valve having an exit orifice and the flow restrictor being offset from the exit orifice of the equilibrium valve.

A rotary servo valve comprising a housing portion (105) defining a cylindrical cavity (107) and a first layer of ports. The rotary servo valve further comprises two opposing indented sides and two opposing sides having an increased radius relative to the indented sides, each side of increased radius extending between the two indented sides. The spool portion (103) is mounted for rotation relative to the cylindrical cavity (107), from a neutral position so as to prevent fluid flow through the valve, to an open position in which a fluid flow path is provided.

A rotary servo valve comprising a housing portion (105) defining a cylindrical cavity (107) and a first layer of ports. The rotary servo valve further comprises two opposing indented sides and two opposing sides having an increased radius relative to the indented sides, each side of increased radius extending between the two indented sides. The spool portion (103) is mounted for rotation relative to the cylindrical cavity (107), from a neutral position so as to prevent fluid flow through the valve, to an open position in which a fluid flow path is provided.

A diverter valve for an appliance such as a washing machine or the like provides a valve plate that can be moved by a DC motor both rotationally about an axis and axially along the axis to allow the valve plate to be retracted from engagement with a valve seat before rotation and reengaged after rotation permitting operation with a low-power DC motor.

A heat dissipation assembly includes a case and a partition structure. The case has a chamber. The partition structure includes a partition wall vertically disposed in the chamber to separate a first flow path and a second flow path in the chamber, and the partition wall has a breach and a valve structure disposed at the breach, wherein the valve structure covers the breach when the valve structure is not pushed open. When a fluid pressure existed in a section of one of the first flow path and the second flow path which is adjacent to the valve structure is greater than a fluid pressure existed in a section of the other one of the first flow path and the second flow path which is adjacent to the valve structure, the valve structure is pushed away to expose at least a part of the breach.

A valve device is provided. In the valve device, a valve element is rotated about a support shaft, based on rotation of a valve element drive member to switch a through hole that communicates with an outlet formed in a valve seat to adjust a flow rate. The through hole opens in a bottom surface of a flow channel securing groove formed in the valve element. The flow channel securing groove has a long hole shape in which a width in a first direction being a moving direction of the valve element, is smaller than a width in a second direction orthogonal to the first direction. Thus, a region overlapping with the outlet is large as compared to a case where a perfect circular flow channel securing groove is formed.

A pressure reducing valve includes: a housing having an input port, an input channel connected to the input port, a pressure reducing chamber connected to the input channel, a delivery channel connected to the pressure reducing chamber, an output channel and an auxiliary channel branched off from the delivery channel, an output port connected to the output channel, and an auxiliary port connected to the auxiliary channel; and a valve mechanism which is provided inside the pressure reducing chamber connected to the delivery channel and of which the amount of opening is changed to regulate the pressure inside the pressure reducing chamber. Centerlines of the delivery channel, the output channel, and the auxiliary channel are arranged in the same plane.