Abstract: A protector structure for an inverter 1 which is an example of an electrical component includes a protector 3 including a protection portion 31, an attachment portion 32A and an attachment portion 32B. The protector 3 has a constricted portion 33A between the protection portion 31 and the attachment portion 32A, and has a constricted portion 33B between the protection portion 31 and the attachment portion 32B.

Abstract: A structure of vehicle electric equipment including a restriction member restricting removal of a bolt for fixing a cover. The restriction member includes first and second portions. The first portion is disposed at a position overlapping with at least a part of a distal end of a connector of an electric cable when seen from an attachment/detachment direction and between the distal end and a portion of the housing opposed to the distal end in the attachment/detachment direction. The second portion is positioned on an axial extension of the bolt fixing the cover. Sum of a gap between the bolt fixing the cover and the second portion and a distance in the attachment/detachment direction between the distal end of the connector in a complete fitting state and the first portion is smaller than a length from an opening of the screw hole to a tip of the bolt.

Abstract: A structure of vehicle electric equipment including a restriction member restricting removal of a bolt for fixing a cover. The restriction member includes first and second portions. The first portion is disposed at a position overlapping with at least a part of a distal end of a connector of an electric cable when seen from an attachment/detachment direction and between the distal end and a portion of the housing opposed to the distal end in the attachment/detachment direction. The second portion is positioned on an axial extension of the bolt fixing the cover. Sum of a gap between the bolt fixing the cover and the second portion and a distance in the attachment/detachment direction between the distal end of the connector in a complete fitting state and the first portion is smaller than a length from an opening of the screw hole to a tip of the bolt.

Abstract: A photoacoustic apparatus includes a light source unit having a plurality of light emitting elements, an acoustic wave detector, and a control unit. The acoustic wave detector converts an acoustic wave generated by irradiating a subject with pulsed light emitted from the light source unit into an electric signal. The control unit controls an amount of a temporal change in a light emission intensity of the light source unit by changing the number of light emitting elements caused to emit the light among the plurality of light emitting elements.

Abstract: The present invention provides a fuel supply pump which is suitably used in a booster-type accumulator fuel injection device and a tappet structural body which is suitable for the fuel supply pump. For this end, in a tappet structural body which includes a roller and a tappet body portion which houses a roller therein and a fuel supply pump provided with the tappet structural body, the roller is rotatably held on a roller receiver of the tappet body portion and the tappet structural body includes a plate-like or a wire-like restricting means which restricts the movement of the roller in the rotary axis direction.

Abstract: The present invention provides a fuel supply pump which is suitably used in a booster-type accumulator fuel injection device and a tappet structural body which is suitable for the fuel supply pump. For this end, in a tappet structural body which includes a roller and a tappet body portion which houses a roller therein and a fuel supply pump provided with the tappet structural body, the roller is rotatably held on a roller receiver of the tappet body portion and the tappet structural body includes a plate-like or a wire-like restricting means which restricts the movement of the roller in the rotary axis direction.

Abstract: A fuel feed pump is provided that has a fuel flow-rate regulating valve, on the inlet side. The fuel flow-rate regulating valve includes a housing with a fuel inlet port and a fuel outlet port, a valve mechanism for controlling the flow rate of the fuel from the inlet port to the outlet port, and a regulating mechanism for regulating a backpressure to control the position of a needle valve of the valve mechanism in response to a system pressure, to thereby control the flow rate by controlling the fuel flow through an opening provided in a valve chamber. This arrangement makes it difficult for contamination to accumulate, and also enables a low-cost implementation.

Abstract: A fuel feed pump is provided that has a fuel flow-rate regulating valve, on the inlet side. The fuel flow-rate regulating valve includes a housing with a fuel inlet port and a fuel outlet port, a valve mechanism for controlling the flow rate of the fuel from the inlet port to the outlet port, and a regulating mechanism for regulating a backpressure to control the position of a needle valve of the valve mechanism in response to a system pressure, to thereby control the flow rate by controlling the fuel flow through an opening provided in a valve chamber. This arrangement makes it difficult for contamination to accumulate, and also enables a low-cost implementation.