Abstract: A molded resin article and a method of manufacturing a molded resin article that suppresses generation of portions of reduced bonding strength while suppressing separation at the interface between a bond portion (secondary molding resin) on the one hand and a first body and a second body on the other. The molded resin article has a first contact surface formed perpendicular to the main surface of the first body and contacting the second body, a second contact surface formed perpendicular to the main surface of the second body and contacting the first body, and a bond portion bonding together the first body and the second body, formed by injecting molten resin into a resin channel formed by contacting the first contact surface against the second body and contacting the second contact surface against the first body and solidifying the molten resin.

Abstract: An electronically controlled thermostat device simplifies an insulating structure and external portions of the lead wires of a heater incorporated for temperature control of a thermo-element, reduces the number of different parts, and facilitates assembly. A pair of insulating rod pieces clamps the heater at the front and clamps a pair of lead wires from the heater while maintaining an insulated state, and a connector member attached to a side of the insulating rod pieces opposite the portion that holds the heater is mounted on the outside of a device housing. The connector member at an inner end has connector terminals provided with a pair of lead end connecting pieces to which the lead wires are connected, and has an engaging concave portion that engages an engaging convex portion for preventing twisting provided on a side of the insulating rod pieces opposite the portion that holds the heater.

Abstract: A valve device with fail-safe mechanism capable of improved production efficiency includes a valve element, a valve element housing, a third communication port provided in the valve element housing, and a fail-safe mechanism. The fail-safe mechanism includes a thermo-element and an element housing that houses the thermo-element. The element housing, has a large-diameter housing, a small-diameter housing portion that accommodates the thermo-element, and a step. A valve element communicating portion communicating with the valve element housing is provided to the small-diameter housing portion. The fail-safe mechanism includes a valve plate member for closing the step and a coil spring that biases the valve plate member. A third adapter provided to the third communication port is provided with a through-hole that enables the large-diameter housing portion and the third communication port to communicate with each other.

Abstract: A coolant passage device 3 includes coolant intake pipes 11 and 12 that take in coolant from an engine, a delivery pipe 17 to a radiator communicating with the coolant intake pipes, and a delivery pipe 18 to the heater core branched from a central passage 16 connecting the coolant intake pipes with the delivery pipe to the radiator. A branch port 18a leading to the delivery pipe 18 to the heater core is opened in an upper portion in the central passage 16 in a state where the coolant passage device 3 is mounted to the engine, and the branch port 18a has a wall surface 21 surrounding the branch port and hanging down into the central passage 16. The wall surface 21 prevents bubbles contained in the coolant from entering the branch port 18a. And the coolant passage device consequently prevents coolant flow noise from occurring.

Abstract: A thermo valve has a valve chamber disposed inside a housing and open to a first flow path through an opening. Second and third flow paths open into the valve chamber. A thermo-element that can move back and forth axially inside the valve chamber in response to fluid temperature opens and closes the second and third flow paths and is biased in a direction that blocks the flow paths by a coil spring. A valve element that is a bypass valve that opens and closes an opening that connects the first and third flow paths inside the valve chamber and communicates the first and third flow paths is disposed in the opening. The coil spring is also used to bias the valve element in a direction that blocks the flow paths.

Abstract: A thermoelectric conversion module has a plurality of cold side substrates, a plurality of first electrodes, a plurality of thermoelectric conversion elements, a plurality of second electrodes, X-axis connectors, and Y-axis connectors. The second electrodes are disposed on the cold side substrates six at a time. Between adjacent cold side substrates, two of X-axis connectors as inter-substrate connectors or Y-axis connectors are disposed. One of the plurality of inter-substrate connectors is connected from one of the first electrodes positioned on one of the cold side substrates to one of the second electrodes positioned on another one of the cold side substrates. The other inter-substrate connector is connected from the other one of the first electrodes on the another one of the cold side substrates to the second electrode on the one cold side substrate.

Abstract: A thermoactuator easily installed in an object without compromising the operating characteristics of the thermo-element has an element case, containing wax that expands and contracts with changes in temperature; a supporting portion attached at one end to the element case by crimping, slidably supporting a shaft at another end; a cylindrical casing having an opening in one end, at least a portion of the supporting portion pressed through the opening in the one end of the cylindrical casing; and a flange expanding outward from the one end of the cylindrical casing, in which through-holes are formed for mounting the thermoactuator to an object to which the thermoactuator is to be attached. The element case is supported by one end of the supporting portion housed within the object to which the thermoactuator is to be attached and the casing is mounted on the object via the flange.

Abstract: A thermoelectric conversion module has a plurality of cold side substrates, a plurality of first electrodes, a plurality of thermoelectric conversion elements, a plurality of second electrodes, X-axis connectors, and Y-axis connectors. The second electrodes are disposed on the cold side substrates six at a time. Between adjacent cold side substrates, two of X-axis connectors as inter-substrate connectors or Y-axis connectors are disposed. One of the plurality of inter-substrate connectors is connected from one of the first electrodes positioned on one of the cold side substrates to one of the second electrodes positioned on another one of the cold side substrates. The other inter-substrate connector is connected from the other one of the first electrodes on the another one of the cold side substrates to the second electrode on the one cold side substrate.

Abstract: An internal combustion engine cooling device includes a piston fixedly mounted within a device housing coupled to a plurality of flow paths through which cooling water flows, the piston disposed facing the interior of the device housing; a cylinder container that advances and retreats relative to the piston and has a flange valve that opens and closes a main flow path of the cooling water; a thermal expansion unit provided within the cylinder container that causes the cylinder container to advance and retreat due to volumetric changes attendant upon temperature changes; and a heat-emitting element provided within a piston casing that heats the thermal expansion unit when supplied with electricity. An insulating cover is provided to the exterior of the cylinder container at a portion of the cylinder container disposed facing the cooling water.

Abstract: A thermostat valve has a cylindrical valve housing formed as a single integrated unit out of synthetic resin material, having an annular body and a frame attached to one end of the annular body by a plurality of legs, a disk-shaped valve stem disposed in another end of the valve housing and movable along an axial direction, a spring seat that holds an opposite end of spring means away from the valve stem and locked and held in place by hooks at tips of locking arms extending from the valve housing, and a thermo-element fixedly mounted to an element guide provided in the frame of the valve housing that moves the valve stem in a valve opening direction in response to fluid temperature. An annular step having a top portion of predetermined width is formed adjacent to the rim of the opening in the one end of the valve housing.

Abstract: A thermoelectric conversion module has a substrate, a plurality of first electrodes, a plurality of thermoelectric conversion elements 2, a plurality of second electrodes 4, and connectors 42. The plurality of thermoelectric conversion elements 2 are n-type elements, connected in series. The connector 42 is formed as a single unit with the second electrodes 4 and separate from the first electrodes 3. A receptor 33 that accepts the tip of the connector 42 is provided to each of the first electrodes 3. Six element rows 6 of five thermoelectric conversion elements 2 aligned along the X axis are arrayed along the Y axis. The receptors 33 are configured to accept connectors 42 of the same shape whether electrically connecting the thermoelectric conversion elements 2 within the element rows 6 or electrically connecting between adjacent element rows 6. The first electrodes 3 and second electrodes 4 are all the same shape.

Abstract: Provided is a fluid control valve assembly which reduces pressure loss as much as possible in a fluid passage line including a fluid control valve, thereby mini-minimizing the pressure for a fluid to pass therethrough and thus ensuring a required amount of flow without upsizing the overall assembly. The fluid control valve assembly is adapted such that an upstream pipe (17) forming an upstream fluid passageway and tilted at a predetermined angle relative to a valve axis (L) is provided to face an upstream chamber (11). The upstream chamber is formed upstream of a valve portion (12) which has a valve seat (13) and a valve body (14) in a valve housing (10) and which can open and close the fluid passageway. The wall surface of the upstream chamber is integrated with a swelling (20), which is projected in the chamber to thereby rectify and guide the fluid flowing therein through the upstream pipe so that the fluid smoothly flows to the valve portion.

Abstract: A thermoactuator easily installed in an object without compromising the operating characteristics of the thermo-element has an element case, containing wax that expands and contracts with changes in temperature; a supporting portion attached at one end to the element case by crimping, slidably supporting a shaft at another end; a cylindrical casing having an opening in one end, at least a portion of the supporting portion pressed through the opening in the one end of the cylindrical casing; and a flange expanding outward from the one end of the cylindrical casing, in which through-holes are formed for mounting the thermoactuator to an object to which the thermoactuator is to be attached. The element case is supported by one end of the supporting portion housed within the object to which the thermoactuator is to be attached and the casing is mounted on the object via the flange.

Abstract: Provided is a fluid control valve assembly which reduces pressure loss as much as possible in a fluid passage line including a fluid control valve, thereby mini-minimizing the pressure for a fluid to pass therethrough and thus ensuring a required amount of flow without upsizing the overall assembly. The fluid control valve assembly is adapted such that an upstream pipe (17) forming an upstream fluid passageway and tilted at a predetermined angle relative to a valve axis (L) is provided to face an upstream chamber (11). The upstream chamber is formed upstream of a valve portion (12) which has a valve seat (13) and a valve body (14) in a valve housing (10) and which can open and close the fluid passageway. The wall surface of the upstream chamber is integrated with a swelling (20), which is projected in the chamber to thereby rectify and guide the fluid flowing therein through the upstream pipe so that the fluid smoothly flows to the valve portion.

Abstract: A thermoelectric conversion module that provides improved reliability while maintaining good induced voltage. The thermoelectric conversion module includes a base 5; a plurality of first electrodes 3; a plurality of thermoelectric conversion elements 2 each electrically connected to one of the first electrodes 3 at one end thereof; and a plurality of second electrodes 4, each electrically connected to another end of the thermoelectric conversion elements 2; a plurality of parallel groups 17 connecting the thermoelectric conversion elements 2 in parallel; and the parallel groups 17 connected in series, or a plurality of series groups connecting the thermoelectric conversion elements 2 in series, with the series groups connecting in parallel.

Abstract: [Problem] To enable to heat and atomize liquefied gas even at low temperatures by increasing a flow path length and a transit time to be heated by a heater, and by spending time and efficiently heat the liquefied gas. [Solution] A device housing having a hollow portion including a gas intake pipe projectingly provided to an outer periphery of an instrument body such that liquefied gas is taken in from an outer end, having the heater built therein and attached to the instrument body. In the hollow portion of the device housing, a heating wall formed by a bulge extending from the outer end side to the inner end side in the axial direction of the intake pipe and the heater for heating are internally provided. Between the heating wall and the gas intake pipe, and between the heating wall and the inner wall of the housing, inner and outer gas flow paths are formed.

Abstract: A thermostat device having a first coolant flow path; a second coolant flow path; a casing including a thermostat container portion that communicates with the first and second coolant flow paths; a third coolant flow path that communicates with the thermostat container portion; a cap that covers the thermostat container portion; a thermostat including a thermo-element that advances and retreats in response to changes in temperature of a coolant that flows through the thermostat container portion; a temperature sensor disposed within the thermostat container portion and which detects the temperature of the coolant; a sensor mount in which the temperature sensor is embedded, integrated into an inside end of the cap; and a lead connector extending from the temperature sensor and integrated into an outside end of the cap.

Abstract: A pair of coolant receiving pipes (23) and (24) for respectively receiving a coolant from left and right engine heads of a V-engine are provided on a first body (21) side, and a collecting passage (27) for collecting the coolant, communication opening (30a) towards a radiator via the above-mentioned collecting passage (27) and communication opening (31a) towards a branch passage provided with a heater core part or the like are provided on a second body (22) side and these are individually resin molded. A coolant passage apparatus (10) is formed by joining the above-mentioned first body (21) and second body (22) for example by welding means.

Abstract: To improve the mass productivity of thermoelectric conversion modules. A thermoelectric conversion module 1 is equipped with a pair of substrates 11 and 12, a plurality of thermoelectric conversion elements 2, each having one end portion electrically connected to a first electrode 3 which is arranged on the substrate 11 and the other end portion electrically connected to a second electrode 4 which is arranged on the substrate 12, and a connection section 5 which electrically connects the first electrode 3 electrically connected to the thermoelectric conversion element 2 to the second electrode 4 electrically connected to an adjacent one of the thermoelectric conversion elements 2. The connection section 5 is separate from at least one of the first electrode 3 and the second electrode 4.

Abstract: A rotary valve seal member that is held in sliding contact with a valve element that rotates, turns, or slides within a valve housing of a rotary valve and is capable of providing a secure seal as the valve element operates. The seal member has the structure of a three-dimensional ring having a cross-section composed of an oval portion, aligned with a normal line to the outside of the valve element and having a bulge at the end that protrudes and presses against the outer surface of the valve element, and a rectangular portion, into which the oval portion is integrated in a state in which the oval portion is aligned with the normal line to the outside of the valve element, that is retained within an annular groove with the outer side of the rectangular portion in contact with the wall of the annular groove.