Abstract: A fuel pump includes a plunger that reciprocates, a retainer having a mounting portion attached to a lower end portion of the plunger, and a spring that biases the plunger via the retainer. The mounting portion has an engagement portion that is engaged with a constricted portion formed at the lower end portion of the plunger. A diameter of a circle formed by a corner portion of the engagement portion and an inner peripheral wall of the spring is smaller than a diameter of the lower end portion of the plunger.

Abstract: In a situation where a conventional inductive throttle sensor is used with a motor-driven throttle valve device to detect the rotation angle of a throttle shaft, plural sensor connection conductor sections for connecting a connector terminal to a circuit board terminal section are formed on the cover on one lateral surface side of a circuit board in the long-axis direction. This increases the dimension of the cover in the short-axis direction (the dimension in the direction of air flow in an intake path). Consequently, it is difficult to install the motor-driven throttle valve device and inductive throttle sensor in a narrow engine room. This problem is addressed by using a separate member to achieve electrical conduction between a stator circuit board and a conductor routed inside the cover installed over the stator circuit board in a concentrated manner on one side of the circuit board.

Abstract: In a situation where a conventional inductive throttle sensor is used with a motor-driven throttle valve device to detect the rotation angle of a throttle shaft, plural sensor connection conductor sections for connecting a connector terminal to a circuit board terminal section are formed on the cover on one lateral surface side of a circuit board in the long-axis direction. This increases the dimension of the cover in the short-axis direction (the dimension in the direction of air flow in an intake path). Consequently, it is difficult to install the motor-driven throttle valve device and inductive throttle sensor in a narrow engine room. This problem is addressed by using a separate member to achieve electrical conduction between a stator circuit board and a conductor routed inside the cover installed over the stator circuit board in a concentrated manner on one side of the circuit board.

Abstract: In a situation where a conventional inductive throttle sensor is used with a motor-driven throttle valve device to detect the rotation angle of a throttle shaft, plural sensor connection conductor sections for connecting a connector terminal to a circuit board terminal section are formed on the cover on one lateral surface side of a circuit board in the long-axis direction. This increases the dimension of the cover in the short-axis direction (the dimension in the direction of air flow in an intake path). Consequently, it is difficult to install the motor-driven throttle valve device and inductive throttle sensor in a narrow engine room. This problem is addressed by using a separate member to achieve electrical conduction between a stator circuit board and a conductor routed inside the cover installed over the stator circuit board in a concentrated manner on one side of the circuit board.

Abstract: In a situation where a conventional inductive throttle sensor is used with a motor-driven throttle valve device to detect the rotation angle of a throttle shaft, plural sensor connection conductor sections for connecting a connector terminal to a circuit board terminal section are formed on the cover on one lateral surface side of a circuit board in the long-axis direction. This increases the dimension of the cover in the short-axis direction (the dimension in the direction of air flow in an intake path). Consequently, it is difficult to install the motor-driven throttle valve device and inductive throttle sensor in a narrow engine room. This problem is addressed by using a separate member to achieve electrical conduction between a stator circuit board and a conductor routed inside the cover installed over the stator circuit board in a concentrated manner on one side of the circuit board.

Abstract: In a situation where a conventional inductive throttle sensor is used with a motor-driven throttle valve device to detect the rotation angle of a throttle shaft, plural sensor connection conductor sections for connecting a connector terminal to a circuit board terminal section are formed on the cover on one lateral surface side of a circuit board in the long-axis direction. This increases the dimension of the cover in the short-axis direction (the dimension in the direction of air flow in an intake path). Consequently, it is difficult to install the motor-driven throttle valve device and inductive throttle sensor in a narrow engine room. This problem is addressed by using a separate member to achieve electrical conduction between a stator circuit board and a conductor routed inside the cover installed over the stator circuit board in a concentrated manner on one side of the circuit board.

Abstract: An apparatus for enhancing the control response of EGR recirculation rate. For EGR control, this apparatus contains a throttle valve for controlling the opening of an engine air intake passage (i.e. throttle valve for EGR control), and an EGR valve for controlling the flow rate of the exhaust gas recirculated into the air intake passage. The apparatus also includes a first air intake body containing the throttle valve, drive motor thereof and reduction gear mechanism, and a second air intake body containing the EGR valve, drive motor thereof and reduction gear mechanism. The first and second air intake bodies are connected with each other to form an integral assembly and are equipped with the first and second covers for protecting the respective reduction gear mechanisms. At least a circuit board for controlling the drive of the reference value is incorporated in at least one of said covers.

Abstract: That is an electronically controlled throttle device comprising a throttle valve held rotatably in a throttle body; an actuator for driving the throttle valve; a return spring which gives a force to return the throttle valve in the full open direction; a throttle position sensor for detecting the opening of the throttle valve; and a throttle actuator control unit for driving the actuator based on the opening of the throttle valve detected by the throttle position sensor and a target opening. Wherein the throttle actuator control unit is provided with a control means which controls the actuator, when EGR control or DPF control has ended, so that the throttle valve turns toward the full open position in a longer period of time than the length of time in which the throttle valve is turned toward the full open position by the return spring only.

Abstract: That is an electronically controlled throttle device comprising a throttle valve held rotatably in a throttle body; an actuator for driving the throttle valve; a return spring which gives a force to return the throttle valve in the full open direction; a throttle position sensor for detecting the opening of the throttle valve; and a throttle actuator control unit for driving the actuator based on the opening of the throttle valve detected by the throttle position sensor and a target opening. Wherein the throttle actuator control unit is provided with a control means which controls the actuator, when EGR control or DPF control has ended, so that the throttle valve turns toward the full open position in a longer period of time than the length of time in which the throttle valve is turned toward the full open position by the return spring only.