Abstract: A method for coating a vehicle body on which an electrodeposition coating has been performed includes in this order: applying a first base coating material over an outer surface of the vehicle body to form a first base layer; applying a mixture of a second base coating material and a first curing agent over an inner surface of the vehicle body to form an inner second base layer; applying the second base coating material over the first base layer that has not been baked to form an outer second base layer; applying a clear coating material over the inner second base layer and the outer second base layer to form a clear layer; and baking the first base layer, the inner second base layer, the outer second base layer, and the clear layer for curing thereof.

Abstract: The purpose of the present invention is to increase the pressure of fuel while reducing an increase in the maximum lift amount of a cam and deterioration of a fuel injection ability. This cam for use in a fuel injection pump that increases the pressure of fuel supplied into a fuel supply chamber by an axial movement of a plunger. The cam includes a first cam surface that causes an increase rate of an axial speed of the plunger when the cam rotates at a constant speed, in a pre-stroke period until the plunger increases the pressure of the fuel in the fuel supply chamber, to be a first increase rate, and a second cam surface that causes the increase rate of the axial speed of the plunger when the cam rotates at the constant speed, in a pressure increasing period that is a period from a start of increasing the pressure of the fuel in the fuel supply chamber by the plunger, to be a second increase rate, wherein the first increase rate is set higher than the second increase rate.

Abstract: A coupling device configured to transmit a rotational force between a first shaft and a second shaft, the device including a first coupling member mounted on the first shaft, a second coupling member mounted on the second shaft, and an intermediate member disposed between the first coupling member and the second coupling member, and configured to allow misalignment between the first shaft and the second shaft. The second coupling member includes a base member configured to be fixed to the intermediate member by a first fastening device, and a shaft mounting member configured to relatively non-rotatably be mounted on the second shaft, the shaft mounting member having a long hole extending along a circumferential direction of the above-described axis and being configured to detachably be fixed to the base member by a second fastening device inserted through the long hole.

Abstract: The purpose of the present invention is to increase the pressure of fuel while reducing an increase in the maximum lift amount of a cam and deterioration of a fuel injection ability. This cam for use in a fuel injection pump that increases the pressure of fuel supplied into a fuel supply chamber by an axial movement of a plunger. The cam includes a first cam surface that causes an increase rate of an axial speed of the plunger when the cam rotates at a constant speed, in a pre-stroke period until the plunger increases the pressure of the fuel in the fuel supply chamber, to be a first increase rate, and a second cam surface that causes the increase rate of the axial speed of the plunger when the cam rotates at the constant speed, in a pressure increasing period that is a period from a start of increasing the pressure of the fuel in the fuel supply chamber by the plunger, to be a second increase rate, wherein the first increase rate is set higher than the second increase rate.

Abstract: A coupling device configured to transmit a rotational force between a first shaft and a second shaft, the device including a first coupling member mounted on the first shaft, a second coupling member mounted on the second shaft, and an intermediate member disposed between the first coupling member and the second coupling member, and configured to allow misalignment between the first shaft and the second shaft. The second coupling member includes a base member configured to be fixed to the intermediate member by a first fastening device, and a shaft mounting member configured to relatively non-rotatably be mounted on the second shaft, the shaft mounting member having a long hole extending along a circumferential direction of the above-described axis and being configured to detachably be fixed to the base member by a second fastening device inserted through the long hole.

Abstract: A solenoid type electromagnetic valve is configured such that an attraction force arises between an attracting side face of a solenoid core power supply body and an attracted side face of an armature which is facing the attracting side face when a current is conducted through a solenoidal coil, while the attraction force is released between the attracting side face and the attracted side face when the current conducted through the solenoidal coil is cut off, wherein at least one plate member of nonmagnetic material comprising nonmagnetic stainless steel, aluminum alloy or ceramic material is fitted to the attracting side face of the solenoid core power supply body, and fluid insulation resin is filled therein, thereby the fluid insulation resin is solidified and secures the plate member thereto.

Abstract: A device for controlling a variation in pressure upstream of a common rail, the device being an extremely simple and small-sized compact device which is used in a pressure accumulating common rail type fuel injection apparatus. The device for controlling a variation in pressure upstream of a common rail can supply high-pressure fuel to the common rail in a stable pressure state by preventing pulsation of a high-pressure pump from occurring in each cylinder of the pump and also preventing generation of a surge pressure caused by opening and closing of a check valve. The device is provided with a secondary common rail which is connected to the fuel outlets of the check valves each provided to each of the cylinders of the high-pressure pump and which has a volume equal to or less than the volume of the common rail, and the device is also provided with injection pipes which connect between the common rail and the fuel outlets of the secondary common rail.

Abstract: Providing a fuel injection valve of the accumulator injection system, whereby the surge pressure caused by the change of the fuel injection rate when the nozzle needle begin to be seated on is reduced or lessened; the deterioration as to the fuel injection performance and the strength of the injection valve components the deterioration which is caused by the surge pressures is prevented. A fuel injection valve of the accumulator injection system, the fuel injection valve including: a nozzle 1, a nozzle needle 2, and a control rod 23; wherein, the control rod is provided with a groove whereby the groove communicates the high pressure fuel passage prior to a fuel injection shot; the groove is disconnected to the high pressure fuel passage and the fuel is injected into an engine combustion chamber during the fuel injection shot; the groove communicates with the high pressure fuel passage at the end of the injection shot.

Abstract: A device for controlling a variation in pressure upstream of a common rail, the device being an extremely simple and small-sized compact device which is used in a pressure accumulating common rail type fuel injection apparatus. The device for controlling a variation in pressure upstream of a common rail can supply high-pressure fuel to the common rail in a stable pressure state by preventing pulsation of a high-pressure pump from occurring in each cylinder of the pump and also preventing generation of a surge pressure caused by opening and closing of a check valve. The device is provided with a secondary common rail which is connected to the fuel outlets of the check valves each provided to each of the cylinders of the high-pressure pump and which has a volume equal to or less than the volume of the common rail, and the device is also provided with injection pipes which connect between the common rail and the fuel outlets of the secondary common rail.

Abstract: Provided is a solenoid type electromagnetic valve having a high-speed responsivity and enhanced durability, thereby the valve can be protected from the erosion damage due to cavitations without losing the high-speed responsivity.

Abstract: Providing a fuel injection valve of the accumulator injection system, whereby the surge pressure caused by the change of the fuel injection rate when the nozzle needle begin to be seated on or be lifted up from the valve seat is reduced or lessened; the deterioration as to the fuel injection performance and the strength of the injection valve components the deterioration which is caused by the surge pressures is prevented.

Abstract: Providing a fuel injection valve of the accumulator injection system, whereby the surge pressure caused by the change of the fuel injection rate when the nozzle needle begin to be seated on is reduced or lessened; the deterioration as to the fuel injection performance and the strength of the injection valve components the deterioration which is caused by the surge pressures is prevented. A fuel injection valve of the accumulator injection system, the fuel injection valve including: a nozzle 1, a nozzle needle 2, and a control rod 23; wherein, the control rod is provided with a groove whereby the groove communicates the high pressure fuel passage prior to a fuel injection shot; the groove is disconnected to the high pressure fuel passage and the fuel is injected into an engine combustion chamber during the fuel injection shot; the groove communicates with the high pressure fuel passage at the end of the injection shot.

Abstract: A poppet valve device includes a plurality of axial passages of substantially the same diameter and length communicating with a high-pressure room formed inside a valve seat member between a poppet valve body and the valve seat member. The passages are located adjacent to each other and an annular gap formed between the periphery of the poppet valve body and an inner perimeter of a projecting part on which a valve seat face of the valve seat member is formed, is narrow to restrict liquid flow through the annular gap. An electronic controlled fuel injection apparatus equipped with the poppet valve device is composed such that a lower end part of the poppet valve body and a bottom of a valve device accommodating part of the fuel injection apparatus are formed to restrict flow of fuel to prevent the occurrence of bouncing.

Abstract: The system includes optical bus-bridging devices for observing the modes of said electric buses and the modes of said optical fibers while said electric buses have not been driven (OFF mode), so that the modes of the two electric buses connected through optical fibers are brought into agreement and that the buses can be simultaneously driven by a plurality of nodes. While one or both of said electric buses have been driven (ON mode) by the nodes connected thereto, an optical output has been continuously produced from the buses that are being driven to said optical fibers, and while light has been inputted from said optical fibers, the modes of said buses are not observed, but an electric output is produced to the electric bus of the side to which light is inputted to drive the bus. The optical bus-bridging device changes the mode of the electric bus when the optical fiber does not change within a predetermined period of time after the optical bus-bridging device has outputted a signal to the optical fiber.

Abstract: A poppet valve device includes a plurality of axial passages of substantially the same diameter and length communicating with a high-pressure room formed inside a valve seat member between a poppet valve body and the valve seat member. The passages are located adjacent to each other and an annular gap formed between the periphery of the poppet valve body and an inner perimeter of a projecting part on which a valve seat face of the valve seat member is formed, is narrow to restrict liquid flow through the annular gap. An electronic controlled fuel injection apparatus equipped with the poppet valve device is composed such that a lower end part of the poppet valve body and a bottom of a valve device accommodating part of the fuel injection apparatus are formed to restrict flow of fuel to prevent the occurrence of bouncing.

Abstract: A poppet valve device is composed such that a plurality of axial passages of substantially the same diameter and length communicating to a high-pressure space formed inside the valve seat member between the poppet valve body and the valve seat member are provided in the valve seat member. The passages are located adjacent to each other, or located axially symmetrically. An annular gap formed between the periphery of the poppet valve body and the inner perimeter of a projecting part on which the valve seat face of the valve seat member is formed is narrow to restrict liquid flow through the annular gap.

Abstract: A fuel injection apparatus having a plurality of high pressure fuel injection pumps for supplying fuel to a common rail, of which amounts of fuel discharge can be controlled by a fuel supply amount adjusting device of simple and reliable construction. The fuel supply amount adjusting device is provided to fuel feed passages for feeding fuel to the plunger rooms. The adjusting device includes a spool valve device for varying opening area of each of passages for introducing fuel into each of the plunger rooms by sliding a spool fitted slidably in a spool valve case, a spool drive device for sliding the spool, and a controller for controlling the spool drive device so that the spool is slid to a position at which the opening area coincide with area required depending on engine operating conditions.

Abstract: A compact electromagnetic valve device for fuel injection apparatus for engines is provided with which occurrence of cavitation erosion due to rapid change in pressure in a small gap is prevented without increasing in size. Through holes are drilled in a platy armature connected to a poppet valve for opening and closing a fuel passage connecting a fuel feed/spill passage to a plunger room of a fuel injection apparatus, and a thin plate valve or check valve is provided to the armature to allow the holes to be opened or closed in accordance with upward or down ward movement of the armature connected with the popped valve.

Abstract: A compact electromagnetic valve device for fuel injection apparatus for engines is provided with which occurrence of cavitation erosion due to rapid change in pressure in a small gap is prevented without increasing in size. Through holes are drilled in a platy armature connected to a poppet valve for opening and closing a fuel passage connecting a fuel feed/spill passage to a plunger room of a fuel injection apparatus, and a thin plate valve or check valve is provided to the armature to allow the holes to be opened or closed in accordance with upward or down ward movement of the armature connected with the popped valve.

Abstract: A fuel injection apparatus having a plurality of high pressure fuel injection pumps for supplying fuel to a common rail, of which amounts of fuel discharge can be controlled by a fuel supply amount adjusting device of simple and reliable construction. The fuel supply amount adjusting device is provided to fuel feed passages for feeding fuel to the plunger rooms, the adjusting device comprising a spool valve device for varying opening area of each of passages for introducing fuel into each of the plunger rooms by sliding a spool fitted slidably in a spool valve case, a spool drive device for sliding the spool, and a controller for controlling the spool drive device so that the spool is slid to a position at which the opening area coincide with area required depending on engine operating conditions.