Denso Corporation

Denso Corpora Tion

Yasushi Kono

Takuya Fuse

Shinya Kasamatsu

Eiichi Okuno

Kotaro Mizunuma

Yuta Saiga

A physical quantity measurement device includes a physical quantity detector that detects a physical quantity of a fluid in a measurement flow path, a physical quantity processor that receives a detection result of the physical quantity detector, and a support plate part that supports the physical quantity detector and the physical quantity processor. The support plate part includes a detector support portion to which the physical quantity detector is attached, and a processor support portion that is located at a position spaced apart from the detector support portion and to which the physical quantity processor is attached. Between the detector support portion and the processor support portion, a heat transfer regulation portion is provided to regulate heat transfer from the processor support portion to the detector support portion.

Physical quantity measurement device

A physical quantity measurement device includes a physical quantity detector and a support plate part superposed on a back surface of the physical quantity detector to support the physical quantity detector. The physical quantity detector includes a recessed part on the back surface, and a membrane part defining a bottom surface of the recessed part and being provided with a detection element for detecting a physical quantity of a fluid in a measurement low path. An area of the support plate part covering the recessed part includes a communication hole communicating with the recessed part. A peripheral edge portion of a hole opening, which is an end of the communication hole adjacent to the recessed part, is spaced apart, toward the inside, from a peripheral edge portion of a recess opening, which is an end of the recessed part adjacent to the support plate part.

Physical quantity measurement device and method for manufacturing physical quantity measurement device

The physical quantity measurement device for measuring the physical quantity of the fluid has a measurement flow passage through which the fluid flows; a detection element for detecting the physical quantity of the fluid; a plate-shape physical quantity detector that detects the physical quantity of the fluid by the detection element in the measurement flow passage; a protection body that protects the physical quantity detector; a body recess arranged on the outer surface of the protection body at a position separated from the physical quantity detector in the orthogonal direction, which is orthogonal to a thickness direction of the physical quantity detector.

A heat exchanger has (i) a first passage in which a first fluid flows, (ii) a heat storage body that is thermally connected to the first passage and stores a warm heat or a cold heat, and (iii) a second passage that is thermally connected to both of the first passage and the heat storage body, the second passage in which a second fluid flows. The heat storage body changes to a first phase in a solid state when a temperature of the heat storage body is lower than or equal to a phase transition temperature, and changes to a second phase in a solid state when the temperature of the heat storage body exceeds the phase transition temperature. The heat storage body stores or dissipates heat depending on a phase transition between the first phase and the second phase.

Heat exchanger

A heat storage system has a heat source that generates heat and releases the heat to a first heat medium and a heat storage body that stores heat. The heat storage body changes to a first phase in a solid state when a temperature of the heat storage body is lower than or equal to a phase transition temperature, and changes to a second phase in a solid state when a temperature of the heat storage body exceeds the phase transition temperature. The heat storage body stores or releases heat due to a phase transition between the first phase and the second phase. A mode of operation of the heat storage body is switchable between a heat storage mode in which the heat storage body stores heat of the first heat medium and a heat release mode in which the heat storage body releases the heat stored in the heat storage body to a heat transfer target.

Heat storage system

A determination device determining malfunction of a humidity sensor includes a malfunction determination portion. The humidity sensor includes a humidity detector, a temperature detector and a heater. The humidity detector has a humidity-sensitive film in an intake passage and detects a relative humidity of intake air taken into an internal combustion engine for a vehicle. The temperature detector detects a temperature of the humidity-sensitive film. The heater heats the humidity-sensitive film and the temperature of the humidity-sensitive film is increased by the heater. The malfunction determination portion estimates an estimated relative humidity at a subsequent temperature from an original relative humidity and the subsequent temperature, and compares the estimated relative humidity at the subsequent temperature and an actual subsequent relative humidity to determine malfunction of the humidity detector.

Determination device

A composite heat storage material includes a heat storage material and an inorganic material. The heat storage material is made of a strongly correlated electron material that stores and dissipates heat via solid-solid phase transition. The inorganic material is different from the material of the heat storage material. The heat storage material and the inorganic material are mixed. The composite heat storage material can have characteristics of both the heat storage material and the inorganic material.

Composite heat storage material

A thermoelectric conversion element includes a magnetic body and an electromotive component. The magnetic body has a pipe shape. The electromotive component is arranged to at least one of an outer surface, an inner surface, and an inside of the magnetic body. The electromotive component contains a material having a spin orbit coupling. The magnetic body is magnetized in an axial direction and has a temperature gradient in a radial direction. The electromotive component is spirally arranged around the magnetic body along a circumferential direction.

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Kariya, Japan

Yasushi Kono