Abstract: A control system for monitoring a control state of a target device that receives drive control by a motor includes a setting unit that sets an origin for position monitoring of the target device and a sensor that detects the target device reaching a predetermined position. The setting unit includes an obtainer that obtains, under predetermined drive control over the target device by the motor, leading and trailing edges in a detection signal from the sensor in response to the target device reaching the predetermined position, and a calculator that calculates the origin using first position information associated with a target device position and calculated based on the leading and trailing edges in the detection signal and second position information associated with the target device position and different from the first position information.

Abstract: A negligence term score storage stores, for each of a plurality of words, a negligence term score that is an index representing the likelihood of appearance in a report indicating that an event has occurred due to negligence of an organization. A severity term score storage stores, for each of a plurality of words, a seriousness term score that is an index representing the likelihood of appearance in a report indicating that a serious event has occurred. A score deriver extracts the plurality of words described in the report to be analyzed, and derives a risk score that is an index representing the magnitude of the risk of the organization on the basis of the negligence term score of each of the extracted words, the seriousness term score of each of the extracted words, and a weight in risk evaluation determined in advance.

Abstract: A rotary heat exchanger has a plurality of arcuate hollow blow blades with extend between first and second rotating bodies and which conduct liquid from one to the other. Each of the blades is provided with its own set of fins which are arranged to interleave between and overlap those on the adjacent blades. The rotating bodies are constructed to define inlet and outlet chambers therein. Bearings which are disposed between stationary inlet and outlet pipes and the first and second rotating bodies protect seals from damaging forces when the device is rotating.

Abstract: A rotary heat exchanger comprises a plurality of hollow disc shaped members which are arranged along a distribution conduit and are rotatable about an axis which is concentric with the axis of the distribution circuit. Two diametrically opposed exhaust conduits fluidly interconnect the disc members at locations proximate their peripheries. Bearings and seals are arranged next to one another along inlet and exhaust pipes so that the bearings protect the seals from damage during rotation of the heat exchanger.

Abstract: A steam from a water jacket of the engine is pressurized to form a pressurized steam. The steam thus pressurized is then cooled and condensed by air-cooled condenser to form a pressurized water. The pressurized water is then decompressed to have a normal pressure and then introduced into the water jacket for recirculation.

Abstract: A fan blade structure of a fan such as, for example, a mixed-flow cooling fan for an automotive internal combustion engine, comprising a blade member having an annular boss portion having a cylindrical outer peripheral surface and a plurality of blade portions integral with and radially projecting outwardly from the boss portion, and a collar member secured to the blade member and having a frusto-conical outer wall portion surrounding the boss portion of the blade member and tapering toward the front end of the boss portion and an inner flange portion circumferentially extending along the boss portion of the blade member and attached to the rear end face of the boss portion, the outer wall portion of the collar member being formed with slots angled and configured conformingly to radially inner end portions of the blade portions, respectively, of the blade member and open at the radially reduced axial end of the collar member.