Abstract: An inner surface of an exhaust gas passage 22 of an EGR valve 11 is coated with Teflon coating 31 and a surface of a valve rod 25 is coated with a film 32 of chromium plating.

Abstract: An EGR valve device includes a housing having an exhaust gas passage formed inside, a support shaft slidably supported within the housing through a bearing, a valve disposed on the support shaft to open and close the exhaust gas passage, an urging member for urging the support shaft in a direction to close the valve, a valve seat, insert-cast integral with the housing, for closing the exhaust gas passage by abutting against the valve, and an actuator for driving the support shaft in a direction to open the valve, wherein a plurality of recesses or projections are provided axisymmetrically or uniformly in the peripheral portion of the valve seat to be insert-cast.

Abstract: An exhaust gas recirculation valve is fabricated by fitting a valve head 24 and a cover 32 enclosing a valve rod 25 into a supporting section 31 provided at the tip of the valve rod 25, and caulking the supporting section 31 to secure the valve rod 25 and the cover 32 to the supporting section 31.

Abstract: An inner surface of an exhaust gas passage 22 of an EGR valve 11 is coated with Teflon coating 31 and a surface of a valve rod 25 is coated with a film 32 of chromium plating.

Abstract: In an EGR valve provided in an exhaust gas recirculation passage for recirculating the exhaust gas of an engine, a filter 26b is provided on the side of an exhaust gas passage 22 of a bearing 26a supporting a valve rod 25, while a diameter-reduced section 25a is provided in an area on the valve rod 25 in proximity to the filter 26b.

Abstract: A surface of a valve rod of an EGR valve is plated with chromium plating, and then the surface of the chrome plating is polished to the maximum height surface roughness of 1.0 ?m to 3.2 ?m.

Abstract: A refrigerator (1) having a temperature switchable compartment (3) whose interior temperature can be switched among more than one alternatives is provided with: a cooling device (17) for producing cold air; a blower (14) for sending out the cold air produced by the cooling device (17) into the temperature switchable compartment (3); a temperature switchable compartment discharge damper (13) for opening and closing an air introduction path (12) through which the cooling device (17) communicates with the blower (14); and a temperature switchable compartment return damper (20) for opening and closing an air return path (19) through which an outlet port (33b), from which air in the temperature switchable compartment (3) flows out, communicates with the cooling device (17) and opens and closes a communication path (36) through which the outlet port (33b) communicates with the inlet side of the blower (14).

Abstract: A refrigerator (1) having a temperature switchable compartment (3) whose interior temperature can be switched among more than one alternatives is provided with: a cooling device (17) for producing cold air; a blower (14) for sending out the cold air produced by the cooling device (17) into the temperature switchable compartment (3); a temperature switchable compartment discharge damper (13) for opening and closing an air introduction path (12) through which the cooling device (17) communicates with the blower (14); and a temperature switchable compartment return damper (20) for opening and closing an air return path (19) through which an outlet port (33b), from which air in the temperature switchable compartment (3) flows out, communicates with the cooling device (17) and opens and closes a communication path (36) through which the outlet port (33b) communicates with the inlet side of the blower (14).

Abstract: An EGR valve device includes a valve housing having one or more exhaust-gas inlet ports and two or more exhaust-gas outlet ports, and forming an exhaust-gas passage communicated with these exhaust-gas inlet ports and exhaust-gas outlet ports; two valve-sheets disposed on the inner peripheral face of the valve housing; a valve shaft assembled into the valve housing; and two valves secured on the valve shaft, and simultaneously abutting on the respective valve-sheets when the valve shaft moved in one direction. It is arranged that the valve housing is formed of material having an axial thermal expansion coefficient larger than that of the valve shaft, and that the distance between the two valve-sheets is set so as to equal with that between the valves at the normal temperature.

Abstract: Powder produced by abrasion due to sliding between a brush and a commutator is prevented from moving toward a rotor. A recess is provided between the rotor and a slide face of the brush and the commutator, where powder produced by abrasion at the brush may enter into a motor and increase sliding resistance of the rotor. Thus, there is no such powder produced by abrasion entering into the motor as increasing sliding resistance of the rotor.

Abstract: An EGR valve device includes a valve housing having one or more exhaust-gas inlet ports and two or more exhaust-gas outlet ports, and forming an exhaust-gas passage communicated with these exhaust-gas inlet ports and exhaust-gas outlet ports; two valve-sheets disposed on the inner peripheral face of the valve housing; a valve shaft assembled into the valve housing; and two valves secured on the valve shaft, and simultaneously abutting on the respective valve-sheets when the valve shaft moved in one direction. It is arranged that the valve housing is formed of material having an axial thermal expansion coefficient larger than that of the valve shaft, and that the distance between the two valve-sheets is set so as to equal with that between the valves at the normal temperature.

Abstract: One current passing circuit board is constituted by one metal plate in which a continuous current passing pattern that is to be separated in a plurality of current passing patterns is formed, and molded resin in which the metal plate is inserted. The current passing circuit board is pressed to eliminate the unnecessary portions of the above mentioned current patterns, thereby the one current passing circuit board is formed in a state where the current passing pattern continuously formed is separated in the normal forms.

Abstract: Particle trapping means for trapping worn particles of a commutator is provided in a power source side case mounted on a motor case of a DC motor.

Abstract: Powder produced by abrasion due to sliding between a brush and a commutator is prevented from moving toward a rotor. A recess is provided between the rotor and a slide face of the brush and the commutator, where powder produced by abrasion at the brush may enter into a motor and increase sliding resistance of the rotor. Thus, there is no such powder produced by abrasion entering into the motor as increasing sliding resistance of the rotor.

Abstract: Particle trapping means for trapping worn particles of a commutator is provided in a power source side case mounted on a motor case of a DC motor.

Abstract: One current passing circuit board is constituted by one metal plate in which a continuous current passing pattern that is to be separated in a plurality of current passing patterns is formed, and molded resin in which the metal plate is inserted. The current passing circuit board is pressed to eliminate the unnecessary portions of the above mentioned current patterns, thereby the one current passing circuit board is formed in a state where the current passing pattern continuously formed is separated in the normal forms.

Abstract: There is provided a cruise control apparatus whose reliability can be improved by protecting the actuator from failing. A cruise control apparatus with a controller ECU capable of canceling the cruise control when the temperature data given by the actuator temperature estimation unit exceeds a predetermined value.

Abstract: In apparatus for correcting displacement of a movable member of a machine tool wherein the effect caused by the displacement of the movable member is corrected by a correction load applying device supplied with pressurized fluid, there is provided a position detector for detecting the position of the movable member to produce a position signal, a displacement correction value calculator for calculating a displacement correction value in accordance with the position signal for producing a displacement correction signal, and an electromagnetic valve supplied with the displacement correction signal for adjusting the pressure of the pressurized fluid.