Abstract: In a magnet force type pump driving apparatus in a vehicular engine, a large diameter formation of driving and driven magnets is enabled without being interfered with by a driven rotating member of a wrapping transmission apparatus, thereby achieving an increase in transmission torque. A magnet holder crossing a rotational center face P of a wrapping member of a wrapping transmission apparatus is fixedly attached to a driven rotating member. A driving magnet is arranged at an outer side of the driven rotating member and is attached to the magnet holder. A driven magnet is axially supported by a pump housing arranged to cross the rotational center face P on an inner peripheral side of the driving magnet.

Abstract: A magnetic pump having an internal magnet that is caused to rotate from outside its housing in order to cause rotation of the impeller. In a magnetic coupling structure in which an inner magnet disposed on an impeller is accommodated in a cylindrical accommodating portion of the housing, the outer circumferential surface of this accommodating portion is loosely inserted into the inner circumferential surface of a cylindrical outer magnet which is supported on its outer circumferential surface by a magnet cup body, and which rotates together with this magnet cup body, and the impeller rotates in accordance with the rotation of the outer magnet, and a cylindrical covering member which covers the inner circumferential surface of the abovementioned outer magnet is mounted on the outer magnet.

Abstract: To reliably prevent the occurrence of a pull out phenomenon in a magnetic driving pump of a vehicle internal combustion engine where permanent magnets, magnetized to have alternate N poles and S poles around an axis of a drive shaft and a driven shaft, are respectively fixed to the drive shaft and the driven shaft. The drive shaft is interlocked with a crankshaft and the driven shaft is coaxially mounted with the drive shaft. Furthermore, the permanent magnets are magnetized to have alternate N poles and S poles 90 degrees or 180 degrees in phase in a peripheral direction.

Abstract: A thermostat 1 which placed in a cooling fluid channel of an internal combustion engine and which controls the flow of a cooling fluid within the cooling fluid channel depending upon a change in the temperature is disclosed.

Abstract: To improve the performance of a cooling system for an engine which includes a cylinder bore and a water jacket formed in an engine body, and in which a thermostat is attached to the engine body so that it projects from the engine body as little as possible, and is protected against hunting regardless of abrupt variations in cooling water temperature. A cylindrical thermostat includes a sliding space therein. Furthermore, the thermostat includes a housing having an inlet and an outlet facing each other. A wax case is slidably fitted in the sliding space in order to enable or disable communication between the inlet and the outlet in response to the expansion or contraction of the wax. An axis of the sliding space is parallel to an axis of a cylinder bore. The housing is directly attached to a body of the engine.

Abstract: In a magnet force type pump driving apparatus in a vehicular engine, to enable large diameter formation of driving and driven magnets without being interfered with by a driven rotating member of a wrapping transmission apparatus to thereby achieve an increase in transmission torque. A magnet holder crossing a rotational center face P of a wrapping member of a wrapping transmission apparatus is fixedly attached to a driven rotating member. A driving magnet is arranged at an outer side of the driven rotating member and is attached to the magnet holder. A driven magnet is axially supported by a pump housing arranged to cross the rotational center face P on an inner peripheral side of the driving magnet.

Abstract: To suppress vibrations of a power unit which is vertically swingably supported to a vehicle body, thereby suppressing the generation of noise. A vehicle power unit includes an internal combustion engine having a cylinder portion with axis L which is inclined down to the rear side from a vertical direction, and a power transmitting device for transmitting power of the engine to a rear wheel WR. The power unit is supported at a front pivot portion and a rear pivot portion to a vehicle body so as to be vertically swingable about the front pivot portion. A crankshaft and an axle of the rear wheel are located below a plane containing the axes of the front pivot portion and the rear pivot portion. The plane and the cylinder portion intersect each other between the front pivot portion and the rear pivot portion as viewed in side elevation.

Abstract: To reliably prevent the occurrence of a pull out phenomenon in a magnetic driving pump of a vehicle internal combustion engine where permanent magnets, magnetized to have alternate N poles and S poles around an axis of a drive shaft and a driven shaft, are respectively fixed to the drive shaft and the driven shaft. The drive shaft is interlocked with a crankshaft and the driven shaft is coaxially mounted with the drive shaft. Furthermore, the permanent magnets are magnetized to have alternate N poles and S poles 90 degrees or 180 degrees in phase in a peripheral direction.

Abstract: The present invention relates to a magnet pump in which an internal magnet is caused to rotate from outside the housing in order to cause rotation of the impeller. More particularly, an improvement is made in order to improve the durability of the outer magnet. In a magnetic coupling structure in which an inner magnet disposed on an impeller is accommodated in a cylindrical accommodating portion of the housing, the outer circumferential surface of this accommodating portion is loosely inserted into the inner circumferential surface of a cylindrical outer magnet which is supported on its outer circumferential surface by a magnet cup body, and which rotates together with this magnet cup body, and the impeller rotates in accordance with the rotation of the outer magnet, a cylindrical covering member which covers the inner circumferential surface of the abovementioned outer magnet is mounted on the outer magnet.

Abstract: A fitting construction of the thermostat 1, having a valve body 12 which actuates by the function of a piston portion 11, 15, 15a, 16 and a spring portion 6 depending upon a temperature change in the cooling fluid to cross said fluid channel FA, and which blocks or communicates the fluid channel by the movement is disclosed. The construction has a valve body 17 possessing an insert hole 5a into which the valve body 17 is inserted, an alignment groove 2b formed along the direction of the insertion of the valve body 17, projection 17g is placed on the circumference surface of the valve body 17, which is engaged with the alignment groove 2b, and which can slide along the alignment groove 2b, and a cover 19 which is screwed from the hole opening 2a onto the insert hole 5a, and which pushes and supports the valve body 17 at the end thereof. By having such a construction, there is no need for enlarging the diameter of the pipe, making it possible to moderate the restrictions of the thermostat placement.

Abstract: To improve the performance of a cooling system for an engine which includes a cylinder bore and a water jacket formed in an engine body, and in which a thermostat is attached to the engine body so that it projects from the engine body as little as possible, and is protected against hunting regardless of abrupt variations in cooling water temperature. A cylindrical thermostat has a sliding space therein, and includes a housing having an inlet and an outlet facing each other. A wax case is slidably fitted in the sliding space in order to enable or disable communication between the inlet and the outlet in response to the expansion or contraction of the wax. The housing in which an axis of the sliding space is parallel to an axis of a cylinder bore is directly attached to an engine body.