Abstract: A control valve 8 according to the present disclosure includes a casing 21 in which an outlet for a liquid is formed and the liquid is accommodated, a rotor 22 rotatably accommodated in the casing 21 and having a communication port communicating with the outlet, and a sliding ring 131 having a sliding surface 141a sliding on an outer surface of the rotor in a state of being disposed inside the outlet and causing the outlet and the communication port to communicate with each other according to a rotation position of the rotor 22, in which a liquid holding portion for holding the liquid between the sliding surface 141a and the liquid holding portion is provided on the outer surface of the rotor 22, and the liquid holding portion has a recessed portion for accommodating the liquid.

Abstract: A control valve includes a casing, a valve body, seal tube members, a fuel passage, and a thermostat. The casing has an inflow port and a plurality of outflow ports. The valve body is rotatably disposed inside the casing, and valve holes are formed in a circumferential wall portion. The seal tube members communicate with the outflow ports, abut an outer circumferential surface of the circumferential wall portion, and are opened and closed by corresponding valve holes. Thermostat opens and closes the fuel passage in response to a detected temperature. A communication groove is formed on an inner circumferential surface of the casing. The communication groove causes the inflow port and an upstream portion of the fuel passage to communicate with each other by partially expanding a gap between the circumferential wall portion and the casing.

Abstract: A control valve 8 according to the present disclosure includes a casing 21 in which an outlet for a liquid is formed and the liquid is accommodated, a rotor 22 rotatably accommodated in the casing 21 and having a communication port communicating with the outlet, and a sliding ring 131 having a sliding surface 141a sliding on an outer surface of the rotor in a state of being disposed inside the outlet and causing the outlet and the communication port to communicate with each other according to a rotation position of the rotor 22, in which a liquid holding portion for holding the liquid between the sliding surface 141a and the liquid holding portion is provided on the outer surface of the rotor 22, and the liquid holding portion has a recessed portion for accommodating the liquid.

Abstract: A valve device includes: a casing having an outflow port in which a fluid outlet opening is formed; a joint joined to an opening end surface of the outlet opening; a valve accommodated in the casing so as to be rotatable or slidable and in which a communication port that can communicate with the outlet opening is formed; and a sliding ring with a sliding surface for sliding on an outer surface of the valve while being accommodated in the outflow port and communicates the outlet and the communication port based upon a position of the valve. At least the outer surface of the valve includes a first resin material that contains a first resin, at least the sliding surface of the sliding ring includes a second resin material that contains a second resin, and the first resin and the second resin are the same type of resin.

Abstract: A control apparatus in a cooling system has an opening schedule of a degree of opening of each of a plurality of outflow ports in a control valve including at least a heater cut mode, a heater passing water mode, a fully closed mode, and a switching mode in which the opening and closing of an air conditioning outflow port is switched in a state in which at least one outflow port of a radiator outflow port and a bypass outflow port is opened and switches the heater cut mode and the heater passing water mode via the switching mode.

Abstract: A control valve includes a valve housing, a joint member, a valve body, and a sealing tube member. The sealing tube member has a biasing pressure receiving surface that receives a pressure of a liquid inside the valve housing and biases the sealing tube member to the valve body side. An area S1 of the biasing pressure receiving surface and an area S2 of a valve sliding contact surface of the sealing tube member are set to satisfy Expressions (1) and (2), S1<S2?S1/k ??(1) ??k<1 ??(2) where k is a pressure reduction constant of a liquid flowing through a minute gap between the valve sliding contact surface and the valve body, and ? is a lower limit value for the pressure reduction constant determined based on physical properties of a liquid.

Abstract: A control valve includes a casing, a valve body, a seal cylindrical member, and a drive shaft. The casing includes an inlet and an outlet. The valve body includes a valve hole formed close to one end portion of a circumferential wall part in an axial direction. The seal cylindrical member communicates with the outlet and is in contact with an outer circumferential surface of the circumferential wall part to be opened and closed by the valve hole. The valve body includes the circumferential wall part and a connecting wall which connects a position close to one end portion of the circumferential wall part in the axial direction and the drive shaft. The connecting wall extends radially inward from an axially inner position of the circumferential wall part with respect to an end edge close to one end portion of the valve hole to form a recess-shaped part that opens to one end portion side of the circumferential wall part in the axial direction.

Abstract: A control valve includes a casing, a valve body, seal tube members, a fuel passage, and a thermostat. The casing has an inflow port and a plurality of outflow ports. The valve body is rotatably disposed inside the casing, and valve holes are formed in a circumferential wall portion. The seal tube members communicate with the outflow ports, abut an outer circumferential surface of the circumferential wall portion, and are opened and closed by corresponding valve holes. Thermostat opens and closes the fuel passage in response to a detected temperature. A communication groove is formed on an inner circumferential surface of the casing. The communication groove causes the inflow port and an upstream portion of the fuel passage to communicate with each other by partially expanding a gap between the circumferential wall portion and the casing.

Abstract: A control valve includes a casing, a valve body, and a seal cylindrical member. The casing includes an inlet and an outlet. The valve body is rotatably disposed inside the casing and includes a circumferential wall portion in which a valve hole that allows the inside and outside to communicate is formed. The seal cylindrical member includes one end portion which communicates with a downstream side of an outlet and the other end portion on which a valve sliding contact surface is provided. In the other end portion of the seal cylindrical member, a protrusion height changes continuously in a circumferential direction along a shape of an outer circumferential surface of the circumferential wall portion. A thick portion which is thicker compared to other portions is provided in a region of the other end portion of the seal cylindrical member at which the protrusion height is high.

Abstract: A control valve includes a casing, a valve body, and a seal cylinder member. The casing has an inlet and an outlet. The valve body is rotatably disposed inside the casing, and has a peripheral wall portion formed with a valve hole providing communicating between the inside and the outside. One end portion of the seal cylinder member communicates with a downstream side of the outlet, and a valve sliding contact surface is provided at the other end portion. A protruding height of the other end portion of the seal cylinder member continuously changes in a circumferential direction thereof to conform to a shape of an outer circumferential surface of the circumferential wall portion. A region of the other end portion of the seal cylinder member where the protruding height is lower is provided with a thick portion that is thicker than other portions and reaches the valve-sliding contact surface.

Abstract: A control valve includes a casing, a valve body, and a seal cylinder member. The casing has an inlet and an outlet. The valve body is rotatably disposed inside the casing, and has a circumferential wall portion formed with a valve hole providing communication between the inside and the outside. One end portion of the seal cylinder member communicates with the outlet, and a valve sliding contact surface is provided at the other end portion. A flow rate control groove having a bottom surface which is recessed with respect to the outer circumferential surface of the circumferential wall portion and has one end portion continuous with the valve hole is provided on at least one of a front side and a rear side of an edge portion of the valve hole in the circumferential wall portion in a rotating direction of the valve body.

Abstract: A control valve includes a valve housing, a joint member, a valve body, and a sealing tube member. A seal ring, which receives a liquid pressure inside the valve housing and comes into tight contact with the joint member and the sealing tube member, is provided between the joint member and the sealing tube member. The sealing tube member has a biasing pressure receiving surface receiving the liquid pressure inside the valve housing in a direction along a direction of the valve body. The seal ring is disposed at a position where the sealing tube member is not pressurized in the direction of the valve body. An area of a valve sliding contact surface is set to be larger than an area of the biasing pressure receiving surface.

Abstract: A valve device includes: a casing having an outflow port in which a fluid outlet opening is formed; a joint joined to an opening end surface of the outlet opening; a valve accommodated in the casing so as to be rotatable or slidable and in which a communication port that can communicate with the outlet opening is formed; and a sliding ring with a sliding surface for sliding on an outer surface of the valve while being accommodated in the outflow port and communicates the outlet and the communication port based upon a position of the valve. At least the outer surface of the valve includes a first resin material that contains a first resin, at least the sliding surface of the sliding ring includes a second resin material that contains a second resin, and the first resin and the second resin are the same type of resin.

Abstract: A control valve includes a casing, a valve body, and a seal cylinder member. The casing has an inlet and an outlet. The valve body is rotatably disposed inside the casing, and has a peripheral wall portion formed with a valve hole providing communicating between the inside and the outside. One end portion of the seal cylinder member communicates with a downstream side of the outlet, and a valve sliding contact surface is provided at the other end portion. A protruding height of the other end portion of the seal cylinder member continuously changes in a circumferential direction thereof to conform to a shape of an outer circumferential surface of the circumferential wall portion. A region of the other end portion of the seal cylinder member where the protruding height is lower is provided with a thick portion that is thicker than other portions and reaches the valve-sliding contact surface.

Abstract: A control valve includes a casing, a valve body, and a seal cylinder member. The casing has an inlet and an outlet. The valve body is rotatably disposed inside the casing, and has a circumferential wall portion formed with a valve hole providing communication between the inside and the outside. One end portion of the seal cylinder member communicates with the outlet, and a valve sliding contact surface is provided at the other end portion. A flow rate control groove having a bottom surface which is recessed with respect to the outer circumferential surface of the circumferential wall portion and has one end portion continuous with the valve hole is provided on at least one of a front side and a rear side of an edge portion of the valve hole in the circumferential wall portion in a rotating direction of the valve body.

Abstract: A control valve having first, second, and third outlet ports, which pass through a casing in a radial direction and formed axially at intervals in the casing, first, second and third communication ports, which respectively communicate between the flow path and the first outlet port, between the flow path and the second outlet port and between the flow path and the third outlet port according to a rotational position of the valve, are formed at intervals in the axial direction in the valve. The second outlet port is located between the first and third outlet ports in the axial direction and also located at a different position from the first and third outlet ports in a circumferential direction. An opening width of the second communication port in the axial direction is narrower than an axial interval between the first and third outlet ports.

Abstract: A control valve includes a casing that has a port in which an outflow opening is formed, a joint that is joined to an opening end surface of an outflow opening in the port, a rotor that is rotatably accommodated inside the casing, a slide ring that has a slide surface for sliding on an outer circumferential surface of the rotor, a sealing ring that is interposed between an inner circumferential surface of the port and an outer circumferential surface of the slide ring, and a holder that is disposed between the inner circumferential surface of the port and the outer circumferential surface of the slide ring and holds the sealing ring from an outer side in a port axial direction with respect to the sealing ring. The holder is disposed to be separated from at least any of the joint and the port.

Abstract: A control valve having first, second, and third outlet ports, which pass through a casing in a radial direction and formed axially at intervals in the casing, first, second and third communication ports, which respectively communicate between the flow path and the first outlet port, between the flow path and the second outlet port and between the flow path and the third outlet port according to a rotational position of the valve, are formed at intervals in the axial direction in the valve. The second outlet port is located between the first and third outlet ports in the axial direction and also located at a different position from the first and third outlet ports in a circumferential direction. An opening width of the second communication port in the axial direction is narrower than an axial interval between the first and third outlet ports.

Abstract: A control valve includes a casing, a valve body, and a seal cylindrical member. The casing includes an inlet and an outlet. The valve body is rotatably disposed inside the casing and includes a circumferential wall portion in which a valve hole that allows the inside and outside to communicate is formed. The seal cylindrical member includes one end portion which communicates with a downstream side of an outlet and the other end portion on which a valve sliding contact surface is provided. In the other end portion of the seal cylindrical member, a protrusion height changes continuously in a circumferential direction along a shape of an outer circumferential surface of the circumferential wall portion. A thick portion which is thicker compared to other portions is provided in a region of the other end portion of the seal cylindrical member at which the protrusion height is high.

Abstract: A control valve includes a valve housing, a joint member, a valve body, and a sealing tube member. A seal ring, which receives a liquid pressure inside the valve housing and comes into tight contact with the joint member and the sealing tube member, is provided between the joint member and the sealing tube member. The sealing tube member has a biasing pressure receiving surface receiving the liquid pressure inside the valve housing in a direction along a direction of the valve body. The seal ring is disposed at a position where the sealing tube member is not pressurized in the direction of the valve body. An area of a valve sliding contact surface is set to be larger than an area of the biasing pressure receiving surface.