Abstract: A check valve is arranged in a flow path through which hydraulic fluid flows. The check valve includes: a cap fixed in the flow path; a plug seated on a seat surface provided in the flow path; a first extension provided in the cap and extending from the cap toward the plug; a second extension provided in the plug, extending from the plug toward the cap, and guided by the first extension; and a spring interposed between the cap and the plug to bias the plug toward the seat surface. The check valve further includes a retainer attached to the cap, extending from the cap toward the plug, and locked to the second (52b).

Abstract: A choke coil for a brake control device, includes: lead wires; a magnetic core; and a case housing the core. The case includes: a cylindrical core part around which the lead wires are wound; and a base part provided on an outer peripheral surface of the core part. End portions of the lead wires extend laterally from the core part, and holding portions configured to hold the end portions of the lead wires are formed on an outer surface of the base part on the opposite side to the core part side.

Abstract: One embodiment provides a reservoir tank, including: a reservoir main body having a reserving chamber which reserves a hydraulic fluid, a hydraulic fluid pouring port which is provided at an upper portion of the reservoir main body, and a hydraulic fluid supply port which is provided at a lower portion of the reservoir main body. A groove-like recess portion is formed on a bottom surface of the reservoir main body. As in a projection in which the hydraulic fluid pouring port is projected onto a bottom surface side of the reservoir main body, the recess portion is disposed between the hydraulic fluid pouring port and the hydraulic fluid supply port.

Abstract: One embodiment provides an electronic control unit. The electronic control unit includes a housing and a noise filter. The housing includes an accommodating portion, and the accommodating portion includes a support portion. The noise filter includes an engaging portion, and at least part of the noise filter is housed in the accommodating portion of the housing. When the at least part of the noise filter is housed in the accommodating portion of the housing, the engaging portion is in engagement with the support portion.

Abstract: A choke coil for a brake control device, includes: lead wires; a magnetic core; and a case housing the core. The case includes: a cylindrical core part around which the lead wires are wound; and a base part provided on an outer peripheral surface of the core part. End portions of the lead wires extend laterally from the core part, and holding portions configured to hold the end portions of the lead wires are formed on an outer surface of the base part on the opposite side to the core part side.

Abstract: One embodiment provides an electronic control unit. The electronic control unit includes a housing and a noise filter. The housing includes an accommodating portion, and the accommodating portion includes a support portion. The noise filter includes an engaging portion, and at least part of the noise filter is housed in the accommodating portion of the housing. When the at least part of the noise filter is housed in the accommodating portion of the housing, the engaging portion is in engagement with the support portion.

Abstract: One embodiment provides a reservoir tank, including: a reservoir main body having a reserving chamber which reserves a hydraulic fluid, a hydraulic fluid pouring port which is provided at an upper portion of the reservoir main body, and a hydraulic fluid supply port which is provided at a lower portion of the reservoir main body. A groove-like recess portion is formed on a bottom surface of the reservoir main body. As in a projection in which the hydraulic fluid pouring port is projected onto a bottom surface side of the reservoir main body, the recess portion is disposed between the hydraulic fluid pouring port and the hydraulic fluid supply port.

Abstract: This is a non-uniform resistance heating tube constituting a simulated nuclear fuel cluster in a heat transfer test facility for nuclear reactor. This resistance heating tube has a fixed outside diameter and its thickness is molded so that an electric resistance distribution changes continuously corresponding to the power distribution state of nuclear fuel rod in the axial direction of the tube. This resistance heating tube can be obtained by drawing an original pipe, rolling it into an axially uniform thick, then grinding its outer surface so that its thickness becomes non-uniform continuously in the axial direction of the tube, and thereafter smoothing the outer surface of the tube by swaging so that its outside diameter becomes uniform.

Abstract: A fuel assembly spacer for a nuclear reactor, the spacer having a plurality of spring with a uniform spring strength and arranged symmetrically around the outer periphery of the spacer so that the fuel assembly can be coaxially disposed with respect to a coolant duct. This spacer serves to maintain as uniform a gap as possible between the inner wall of the coolant duct and each outermost fuel rod in the fuel assembly so that the flow of the coolant keeps it symmetry in the section of the coolant duct, thereby improving the thermal performance of the fuel assembly.