Abstract: The present invention provides a fuel supply device that can suppress the excessive heating of a fuel supplied from a fuel pump into an internal combustion engine even if a control module is cooled. The fuel supply device (1) comprises a set plate (10) attached to a mounting hole (34a) of a fuel tank (34), an electric fuel pump (30) attached to an inner surface of the set plate (10), a control module (14) attached to an outer surface of the set plate (10), the control module driving the fuel pump (30) using electric power supplied from the exterior, and a heat radiating member (32) for radiating heat generated in the control module. One end of the heat radiating member (32) is thermally connected to the control module (14), and the other end of the heat radiating member (32) protrudes downward from the inner surface of the set plate (10).

Abstract: A fuel pump control device including an electric component for controlling a fuel pump is placed in a fuel tank. The electric component is hermetically enclosed in a housing. An adsorbent of a cartridge type for adsorbing fuel vapor is provided in the housing. The housing includes a housing body and a covering member closing an opening of the housing body. The electric component includes a control circuit unit and an external terminal extending from the control circuit unit. The external terminal is provided passing through the covering member to the outside. The adsorbent is charged between the covering member and the control circuit unit so that the external terminal is placed passing through the adsorbent.

Abstract: In a fault diagnosis system (10) in a load driving arrangement, the fault diagnosis system detecting a fault in the load driving arrangement in which a controller (13) outputs a control signal to a driver (12) and the driver (12) drives a load (11) according to the control signal, a fault detecting unit (21) and an exclusive OR circuit (22) are provided to enable outputting, as a monitor signal, a signal opposite to the control signal upon detecting a fault in the load driving arrangement and outputting, as a monitor signal, the same signal as the control signal when not detecting a fault, a monitor signal output from the exclusive OR circuit (22) is input to the controller (13), and the controller (13) compares the control signal and the monitor signal and diagnoses whether a fault occurs in the load driving arrangement, based on the result of the comparison.

Abstract: A resolver includes an excitation signal generator which generates a sine wave and a cosine wave as an excitation signal, a rotor which receives the excitation signal, and a rotary transformer which detects an output signal of the rotor, the resolver being arranged to detect angle information of the rotor. The resolver further includes a controller which outputs angle information at a zero cross point of the output signal detected by the rotary transformer. The resolver can provide high detection accuracy and be low in cost.

Abstract: A fuel pump unit includes a fuel pump which is driven by a motor, a secondary filter case placed to surround the fuel pump and contains a filter, a reserve cup which houses the fuel pump and the secondary filter case, and a pump controller which drivingly controls the fuel pump. A shielding material is provided in the reserve cup to shield electrical noise generated by the fuel pump. The shielding material is grounded. The pump controller includes a pump drive circuit which is provided with an electric filter.

Abstract: A fuel supply system comprises an engine control unit (ECU), a fuel pump with a built-in pump motor which is PWM controlled based on a control signal from the ECU, a pump controller for controlling supply of electric power to the pump motor, and sensors for detecting an operating state of the engine. A control section of the pump controller controls to change a frequency to be lower as a duty ratio of a PWM control signal to operate a power transistor of an output circuit is higher and inversely to change the frequency to be higher as the duty ratio is lower.

Abstract: A fuel supply system includes a fuel pump disposed within the fuel tank A cover can close an opening formed in an upper portion of the fuel tank. A receptacle is provided on the cover. A controller can control the operation of a motor of the fuel pump. The controller includes an earth terminal and noise-generating electrical elements. The receptacle has an electrically conductive wall surrounding at least the electrical elements of the controller. The electrically conductive wall is electrically connected to the earth terminal of the controller.

Abstract: In a focusing state determining device for determining a focusing state of a taking lens, an object light entering the taking lens is captured by focusing state determination imaging elements provided separately from a video imaging element, and the focusing state is determined according to luminance signals outputted from the focusing state determination imaging elements. Any error of determination of the focusing state induced by saturation of the luminance signals in imaging an object of high luminance is prevented by adjusting the gains of the image signals outputted from the focusing state determination imaging elements or the charge accumulation times of the focusing state determination imaging elements. High-frequency components are determined from the luminance signals obtained from the focusing state determination imaging elements (A, B, C), and the focus evaluation value is determined by integration thereof.

Abstract: A beam splitter (24)for splitting light in a wavelength range of about 500 nm to about 600 nm is arranged in a relay optical system of a taking lens (12). A green light beam reflected from the beam splitter (24) is directed through a relay lens (R3) to a focusing state determination imaging unit (26). The imaging unit (26) comprises three imaging elements (A, B, C) for capturing the directed green light beam to determine the focusing state. Thus, a device for determining the focusing state of the taking lens is provided, in which the green light beam is separated as an object light for determining the focusing state from the object light entering the taking lens (12), so that the focusing state can be determined with high accuracy on the basis of the high-frequency components of the image signal generated by capturing the green light beam by means of the imaging elements (A, B, C) having different optical path lengths.

Abstract: A beam splitter (24) for splitting light in a wavelength range of about 500 nm to about 600 nm is arranged in a relay optical system of a taking lens (12). A green light beam reflected from the beam splitter (24) is directed through a relay lens (R3) to a focusing state determination imaging unit (26). The imaging unit (26) comprises three imaging elements (A, B, C) for capturing the directed green light beam to determine the focusing state. Thus, a device for determining the focusing state of the taking lens is provided, in which the green light beam is separated as an object light for determining the focusing state from the object light entering the taking lens (12), so that the focusing state can be determined with high accuracy on the basis of the high-frequency components of the image signal generated by capturing the green light beam by means of the imaging elements (A, B, C) having different optical path lengths.

Abstract: In a focusing state determining device for determining a focusing state of a taking lens, an object light entering the taking lens is captured by focusing state determination imaging elements provided separately from a video imaging element, and the focusing state is determined according to luminance signals outputted from the focusing state determination imaging elements. Any error of determination of the focusing state induced by saturation of the luminance signals in imaging an object of high luminance is prevented by adjusting the gains of the image signals outputted from the focusing state determination imaging elements or the charge accumulation times of the focusing state determination imaging elements. High-frequency components are determined from the luminance signals obtained from the focusing state determination imaging elements (A, B, C), and the focus evaluation value is determined by integration thereof.

Abstract: A label printer for printing predetermined data on and issuing labels includes a tubular roll holder (101) secured at one end to a vertical wall (11a), a slide member (102) slidably accommodated within the hollow of the roll holder (101), and a roll retaining lever (103) connected to the slide member 102for pivotal movement between folded and erected positions. The roll retaining lever (103) has one end portion (103a) protruding outwardly from the hollow of the roll support shaft through a slot (101a) defied in the roll holder (101) in communication with the hollow thereof, when the roll retaining lever (103) is pivoted to the erected position, to thereby retain a roll (R) of the ribbon-shaped label sheet (Rp) in position on the roll holder (101) to avoid any possible lateral displacement thereof, but the roll retaining lever (103) when in the folded position lies substantially parallel to a longitudinal axis of the roll holder (101) to allow the label roll (R) to be mounted onto the roll holder (101).