Abstract: An opening/closing control device for a grille shutter is capable of appropriately opening and closing the grille shutter according to a vehicle outside environment and an operating state of an aircon while ensuring the operation of the aircon, and is capable of sufficiently improving vehicle operating efficiency. An aircon operating time ratio as a ratio of operation time of an aircon to overall time is calculated. When the calculated aircon operating time ratio is larger than the sum of a threshold value calculated according to an ambient air temperature and a hysteresis constant, the grille shutter is opened to promote cooling of refrigerant in the aircon and reduce motive power consumed by the aircon. Therefore, it is possible to appropriately open and close the grille shutter depending on the ambient air temperature and the operating ration of the aircon.

Abstract: An opening/closing control device for a grille shutter is capable of appropriately opening and closing the grille shutter according to a vehicle outside environment and an operating state of an aircon while ensuring the operation of the aircon, and is capable of sufficiently improving vehicle operating efficiency. An aircon operating time ratio as a ratio of operation time of an aircon to overall time is calculated. When the calculated aircon operating time ratio is larger than the sum of a threshold value calculated according to an ambient air temperature and a hysteresis constant, the grille shutter is opened to promote cooling of refrigerant in the aircon and reduce motive power consumed by the aircon. Therefore, it is possible to appropriately open and close the grille shutter depending on the ambient air temperature and the operating ration of the aircon.

Abstract: A vehicle air conditioner includes an air-conditioning ECU. The air-conditioning ECU performs a cooling mode operation in which air is cooled by an interior heat exchanger in a cooling refrigeration cycle. The air-conditioning ECU performs a heating mode operation, in which air is heated by the interior heat exchanger in a hot gas heater cycle. The air-conditioning ECU performs an air blowing operation in which air is blown toward an inner surface of a windshield of the vehicle without operating the compressor before performing a refrigerant collecting operation.

Abstract: In a fuel injection system, a fuel tank is disposed below an electronically controlled fuel injection apparatus. A fuel reservoir chamber for supplying fuel from the fuel tank is disposed above the electronically controlled fuel injection apparatus, and the fuel stored in the fuel reservoir chamber is supplied to the electronically controlled fuel injection apparatus via a fuel supply passage. The fuel reservoir chamber and the fuel tank are connected by a first fuel return passage through which vapor is ejected and fuel in the fuel reservoir chamber overflows. A second fuel return passage for returning surplus fuel from the electronically controlled fuel injection apparatus is connected to either of the fuel reservoir chamber and the first fuel return passage at the position above the connecting position at which the fuel reservoir chamber connects with the first fuel return passage.

Abstract: A vehicle air conditioner includes an air-conditioning ECU. The air-conditioning ECU performs a cooling mode operation in which air is cooled by an interior heat exchanger in a cooling refrigeration cycle. The air-conditioning ECU performs a heating mode operation, in which air is heated by the interior heat exchanger in a hot gas heater cycle. The air-conditioning ECU performs an air blowing operation in which air is blown toward an inner surface of a windshield of the vehicle without operating the compressor before performing a refrigerant collecting operation.

Abstract: A power supply apparatus of an engine electrical system reliably starts the engine even in a battery-less apparatus or in a condition that the battery is completely discharged. The power generated in an AC generator 11 is supplied to a power supply line L via a regulator 12. The power supply line L is connected to a capacitor 13 and electronic control unit (ECU) 14. A fuel injection system (FI system) 15 is connected to the power supply line L1 via a first switch 17. The electronic control unit 14 monitors the voltage of the power supply line L1. In kick starting, the first switch 17 is set at OFF, and turned ON when the measured voltage is a reference voltage value or more.

Abstract: The present invention is to provide a fuel injection system which can inject an appropriate amount of fuel from an electronically controlled fuel injection apparatus while returning vapor existing somewhere in the fuel passages, even in the condition that the fuel tank is disposed below the electronically controlled fuel injection apparatus. In the present invention, a fuel tank 10 is disposed below an electronically controlled fuel injection apparatus 12. A fuel reservoir chamber 18 for supplying fuel from the fuel tank 10 is disposed above the electronically controlled fuel injection apparatus 12, and the fuel stored in the fuel reservoir chamber 18 is supplied to the electronically controlled fuel injection apparatus 12 via a fuel supply passage 24. The fuel reservoir chamber 18 and the fuel tank 10 are connected by a first fuel return passage 30 through which vapor is ejected and fuel in the fuel reservoir chamber overflows.

Abstract: With structure comprising a cylinder, a magnetic circuit to exert a mountain-shaped thrust, and a feeding spring to exert an urging force to a plunger during a feeding process, fuel is sucked by movement of the plunger and energy is accumulated in the feeding spring during a powering state, the fuel is fed by movement of the plunger by the urging force of the feeding spring during a non-powering state, a spring constant of the feeding spring is set to generate an urging force larger than a thrust in an early range of the mountain-shaped thrust, and a second spring is disposed to exert an urging force in a direction against the urging force of the feeding spring to make the urging force smaller than the thrust, at least in the early range. In this manner, with an electromagnetically driven type plunger pump of a non-powering feeding type, an effective stroke is enlarged and a feeding amount is increased.

Abstract: The present device is a fuel supply device to pressurize and supply fuel F which is stored in a fuel tank 10, which comprises a fuel supply pipe 11 which forms a supply passage for the fuel F, a fuel filter 12 to filter the fuel F disposed at the midway of the fuel pipe 11 and below the fuel tank 10, a fuel pump 13 to pressure-feed the fuel F disposed at the downstream side than the fuel filter 12, and a venting pipe 15 to connect the downstream side of the fuel filter 12 and an upper air-space A of the fuel tank 10. The object is to provide the fuel supply device and the fuel filter utilized for the fuel supply device which can ensure the discharging amount of the fuel pump by satisfactory removing of vapor which is generated in the fuel sucked to the fuel pump.

Abstract: An internal combustion engine fuel supply system includes a fuel discharge apparatus having a vapor removal system. The fuel discharge apparatus includes an apparatus body, a fuel chamber defined in the body, a fuel inlet connected to a fuel tank, a fuel supply path partially defined by the fuel inlet and connecting the fuel chamber to the fuel tank, a fuel discharge outlet, a fuel return outlet for return of excess fuel to the fuel tank, and a reflux path connecting the fuel supply path to the fuel return outlet. A vapor blocking member is provided in the fuel supply path at a bifurcation point at which the reflux path branches from the fuel supply path. The reflux path is arranged such that vapor blocked by the vapor blocking member rises from the bifurcation point and through the reflux path to the fuel return outlet due to self-buoyancy of the vapor.

Abstract: An electronically controlled fuel injection device includes a plunger pump constituted by a cylinder, a plunger is slidably mounted within the cylinder to form a pressure chamber, and a solenoid coil for driving the plunger. At a lower section of a body that encases the plunger pump, an intake section is coupled to the pressure chamber to cause intake of fuel into the pressure chamber upon operation of the plunger. At an upper section of the body, a return section is arranged to return surplus fuel to a fuel tank. A circulation passage branches off from the intake section and is provided between the cylinder and the solenoid coil for guiding a portion of the fuel toward the return section. With this arrangement, penetration of vapor into the fuel injection device is suppressed, and an inexpensive and highly durable electronically controlled fuel injection device is provided.

Abstract: An internal combustion engine fuel supply system includes a fuel discharge apparatus having a vapor removal system. The fuel discharge apparatus includes an apparatus body, a fuel chamber defined in the body, a fuel inlet connected to a fuel tank, a fuel supply path partially defined by the fuel inlet and connecting the fuel chamber to the fuel tank, a fuel discharge outlet, a fuel return outlet for return of excess fuel to the fuel tank, and a reflux path connecting the fuel supply path to the fuel return outlet. A vapor blocking member is provided in the fuel supply path at a bifurcation point at which the reflux path branches from the fuel supply path. The reflux path is arranged such that vapor blocked by the vapor blocking member rises from the bifurcation point and through the reflux path to the fuel return outlet due to self-buoyancy of the vapor.

Abstract: The present device is a fuel supply device to pressurize and supply fuel F which is stored in a fuel tank 10, which comprises a fuel supply pipe 11 which forms a supply passage for the fuel F, a fuel filter 12 to filter the fuel F disposed at the midway of the fuel pipe 11 and below the fuel tank 10, a fuel pump 13 to pressure-feed the fuel F disposed at the downstream side than the fuel filter 12, and a venting pipe 15 to connect the downstream side of the fuel filter 12 and an upper air-space A of the fuel tank 10. The object is to provide the fuel supply device and the fuel filter utilized for the fuel supply device which can ensure the discharging amount of the fuel pump by satisfactory removing of vapor which is generated in the fuel sucked to the fuel pump.

Abstract: With the structure comprising a cylinder 10, a magnetic circuit to exert mountain-shaped thrust, and a feeding spring 50 to exert urging force to the plunger 20 in a feeding process, fuel is sucked by the movement of the plunger 20 and energy is accumulated at the feeding spring 50 at a powering state, the fuel is fed by the movement of the plunger 20 by the urging force of the feeding spring 50 at a non-powering state, the spring constant of the feeding spring 50 is set to generate the urging force larger than the thrust in an early range of the mountain-shaped thrust, and the second spring 60 is disposed to exert the urging force in a direction against the urging force of the feeding spring 50 to make the urging force smaller than the thrust, at least in the early range.

Abstract: An electronically controlled fuel injection device includes a plunger pump constituted by a cylinder, a plunger is slidably mounted within the cylinder to form a pressure chamber, and a solenoid coil for driving the plunger. At a lower section of a body that encases the plunger pump, an intake section is coupled to the pressure chamber to cause intake of fuel into the pressure chamber upon operation of the plunger. At an upper section of the body, a return section is arranged to return surplus fuel to a fuel tank. A circulation passage branches off from the intake section and is provided between the cylinder and the solenoid coil for guiding a portion of the fuel toward the return section. With this arrangement, penetration of vapor into the fuel injection device is suppressed, and an inexpensive and highly durable electronically controlled fuel injection device is provided.

Abstract: An electronically controlled fuel injection device includes a plunger pump, a circulation passage which circulates fuel that has been pressurized in the initial stage of a pressure-feeding stroke, a valve body which blocks the circulation passage in the later stage of the pressure-feeding stroke, an inlet orifice nozzle which allows the passage of fuel whose pressure has been increased in the later stage of the pressure-feeding stroke, an outlet orifice nozzle which is used to circulate some of the fuel that has passed through the inlet orifice nozzle back into the fuel tank, an injection nozzle which injects an amount of fuel equal to the difference between the fuel that has passed through the inlet orifice nozzle and the fuel that has passed through the outlet orifice nozzle, and a control arrangement for controlling the plunger pump in response to the cycle of the engine.

Abstract: An electronically controlled fuel injection device includes a plunger pump, a circulation passage which circulates fuel that has been pressurized in the initial stage of a pressure-feeding stroke, a valve body which blocks the circulation passage in the later stage of the pressure-feeding stroke, an inlet orifice nozzle which allows the passage of fuel whose pressure has been increased in the later stage of the pressure-feeding stroke, an outlet orifice nozzle which is used to circulate some of the fuel that has passed through the inlet orifice nozzle back into the fuel tank, an injection nozzle which injects an amount of fuel equal to the difference between the fuel that has passed through the inlet orifice nozzle and the fuel that has passed through the outlet orifice nozzle, and a control arrangement for controlling the plunger pump in response to the cycle of the engine.

Abstract: Coated metal bearing a coating on its surface that comprises phenol-, naphthol-, or bisphenol-formaldehyde resin comprising specific structural units, has a thickness from 5 to 500 nm, contains from 5 to 500 mg of carbon atoms present in the resin per m2 of surface coated, and covers at least 90% of the surface of the metal can be subjected to film lamination onto the coating to provide a composite that has an excellent formability, excellent corrosion resistance, excellent adherence between the laminated film and the metal, and excellent environmental safety.

Abstract: An aqueous liquid surface treatment composition having a pH value not more than 6.5 and containing phosphoric acid ions, condensed phosphoric acid ions, an oxidizing agent, and a water-soluble polymer consisting, except for end groups, of polymer units expressed by formula (I), in a weight ratio of 0.1 to 30:0.1 to 10:0.1 to 10:0.1 to 20 respectively, when brought into contact with an aluminiferous metal surface, rapidly forms on the surface a conversion coating that has good corrosion resistance and adhesion to subsequently applied organic coatings such as paint and is less easily damaged by mechanical stresses than prior art conversion coatings.

Abstract: A surface of aluminiferous metal is brought into contact at 25 to 65.degree. C. for 2 to 100 seconds with a surface treatment bath with a pH of 1.0 to 6.0 that contains phosphate ions, dissolved titanium and/or zirconium compounds, dissolved fluorine-containing anions, and a water soluble polymer in the following weight proportions: 1-100:1-50:1-200:1-200. This is followed by a water rinse and drying. The water soluble polymer has a chemical structure conforming to formula (I), in which each of X.sup.1 and X.sub.2 represents a hydrogen atom, a C.sub.1 to C.sub.5 alkyl group, or a C.sub.1 to C.sub.5 hydroxyalkyl group; each of Y.sup.1 and Y.sup.2 represents a hydrogen atom or a moiety "Z" that to formula (II) or (III), wherein each of R.sup.1, R.sup.2, R.sup.3, R.sup.4, and R.sup.5 represents a C.sub.1 to C.sub.10 alkyl group or a C.sub.1 to C.sub.10 hydroxyalkyl group; the average value for the number of Z moieties substituted on each aromatic ring in the polymer molecules is from 0.2 to 1.