Abstract: An exhaust heat recovery unit, includes: a heat exchanger that is provided inside an exhaust pipe through which exhaust gas flows, the heat exchange being formed from silicon carbide, and the heat exchanger performing heat exchange between the exhaust gas and a heat medium; and a retention member that is provided at the periphery of the heat exchanger, is formed of a ceramic sheet or an expandable graphite sheet, and is sandwiched between the exhaust pipe and the heat exchanger, thereby retaining the heat exchanger in the exhaust pipe.

Abstract: A heat recovery structure includes a pipe portion, a heat exchanging portion and an actuator. The pipe portion is inclined such that a side face of the pipe portion faces a diagonally lower side, and is configured such that exhaust gas from an engine circulates through the pipe portion. The heat exchanging portion is configured to communicate with the pipe portion and to perform heat-exchange between a heat medium and the exhaust gas flowing into the heat exchanging portion from the pipe portion such that the exhaust gas thus subjected to the heat-exchange with the heat medium flows out to the pipe portion. The actuator is configured to operate a selector valve configured to switch between a state where the exhaust gas circulates through the pipe portion and a state where the exhaust gas circulates through the heat exchanging portion.

Abstract: In an exhaust heat recovery structure, a heat exchange portion (a tubular part) is configured such that a height of a lower inner surface is lowered from an inlet toward an outlet. Hence, when exhaust gas is condensed and condensed water is thereby generated inside the heat exchange portion (the tubular part), the condensed water flows from the inlet side toward the outlet side where the lower inner surface is lowered, and is then discharged to a piping part. Accordingly, the condensed water is unlikely to be collected inside the heat exchange portion.

Abstract: A heat exchanger includes an introduction path and a discharge path. The introduction path introduces the heating medium to upstream portions of heating medium passages. A length of the introduction path along a third direction is reduced gradually from an upstream end portion of the introduction path towards a downstream end portion of the introduction path. The discharge path discharges the heating medium to an outlet portion. A length of the discharge path along the third direction increases gradually from a first portion towards a second portion. The first portion is disposed downstream of the upstream end portion of the introduction path in the flow direction, and the second portion is disposed downstream of the downstream end portion of the introduction path in the flow direction.

Abstract: An exhaust heat recovery unit that includes: a lead-in pipe that leads a heat medium from outside an exhaust pipe, via an inlet portion of an heat exchanger, into the heat exchanger; a lead-out pipe that leads the heat medium out from the heat exchanger, via an outlet portion of the heat exchanger, outside the exhaust pipe; and a pair of seal members that seal a space between the inlet portion and the lead-in pipe and a space between the outlet portion and the lead-out pipe, with at least one of the pair of seal members including an O-ring disposed in a position in which the at least one of the pair of seal members does not contact exhaust gas flowing through the exhaust pipe and in which the at least one of the pair of seal members contacts the heat medium.

Abstract: There is provided an engine control device including (1) a regulator that regulates a flow rate per unit of time of exhaust gas discharged from an engine, and (2) a controller that, in cases in which an external temperature detection section detects an external temperature below freezing point, and a previous engine operation duration is shorter than a predetermined first duration, controls the regulator such that the flow rate rises to exceed a predetermined normal state, until a predetermined second duration has elapsed since the engine was started up.

Abstract: A vehicle-mounted heat utilization device (10) includes: an engine fluid circuit (12) in which fluid circulates to cool an engine (18); a heater fluid circuit (14) that passes through an exhaust heat recovery apparatus (26) that recovers a heat of exhaust gas (28) and a vehicle-interior heat exchanger (24) for radiating a heat of the fluid into a vehicle interior; a cooling-heating fluid circuit (16) that passes through a radiating heat exchanger (34), the radiating heat exchanger being included in a refrigeration cycle (30) in which refrigerant is compressed by a compressor (32) and the compressed refrigerant is expanded; a first switching unit (52) that is configured to selectively switch a state of the engine fluid circuit (12) and the heater fluid circuit (14) between a connected and a disconnected state; a second switching unit (54) that is configured to selectively switch a state of the heater fluid circuit (14) and the cooling-heating fluid circuit (16) between a connected state and a disconnected stat

Abstract: A vehicular heat management device includes a first heat source, a second heat source, a heater core, a first heat medium pathway, a second heat medium pathway, a heater core pathway, a switching portion, and a control unit. The first heat source is provided in the first heat medium pathway, and the second heat source is provided in the second heat medium pathway. The heater core is provided in the heater core pathway. The switching portion switches between flowing connection and flowing disconnection. The control unit performs at least one of a switching control and a second heat source control when a temperature of the heat medium of the heater core pathway is at or above a predetermined temperature. In the switching control, the switching portion connects the second heat medium pathway to the heater core pathway. In the second heat source control, the second heat source generates heat.

Abstract: An exhaust heat recovery device structure that includes: an exhaust heat recovery device main body that is disposed at an inner side of a floor tunnel formed at a vehicle transverse direction central portion of a floor panel, the exhaust heat recovery device main body carrying out heat exchange between cooling water and gas that is generated at an internal combustion engine of a vehicle; and a metal pipe that extends-out from the exhaust heat recovery device main body, the metal pipe being connected to one end of a resin hose whose another end is connected to the internal combustion engine, the connected portion that connects the metal pipe with the resin hose being provided to the metal pipe further toward a vehicle lower side than the exhaust heat recovery device main body, is provided.

Abstract: A vehicular heat management device includes a first heat source, a second heat source, a first heat generator, a second heat generator, a heat generator pathway, a first heat source pathway, a second heat source pathway, and a switching portion. The first heat source and the second heat source heat a heat medium. The first heat generator generates heat according to operation. The second heat generator generates heat according to operation. The first heat generator and the second heat generator are provided in the heat generator pathway. The first heat generator is provided in the first heat generator pathway. The second heat generator is provided in the second heat generator pathway. The switching portion switches between a condition where the heat generator pathway is in flowing communication with the first heat generator pathway and a condition where the heat generator pathway is in flowing communication with the second heat generator pathway.

Abstract: There is provided an exhaust heat recovery structure that may suppress boiling of coolant in a heat exchanger. The exhaust heat recovery structure includes a first pipe, a second pipe, a valve and a thermostat. Exhaust gas from an engine flows in the first pipe. The second pipe branches from the first pipe and a heat exchanger that exchanges heat between the coolant and exhaust gas is provided at the second pipe. The valve is provided at the first pipe or the second pipe. The valve adjusts a flow amount of exhaust gas flowing into the second pipe by opening and closing. The thermostat is equipped with a heat-sensing portion that is disposed inside the heat exchanger. When the temperature of the heat-sensing portion is high, the thermostat opens or closes the valve to reduce the flow amount of exhaust gas flowing into the second pipe.

Abstract: An exhaust heat recovery device structure includes: an exhaust pipe; a catalytic converter that is connected to the exhaust pipe; an exhaust heat recovery device that is disposed further toward a vehicle rear side than the catalytic converter, and is disposed at an inner side of a floor tunnel that is formed at a vehicle floor portion, and a water pipe of cooling water is connected to a vehicle transverse direction one side of the exhaust heat recovery device, and the exhaust heat recovery device carries out heat exchange between the cooling water and the gas; and a connecting pipe that, at the inner side of the floor tunnel, connects the catalytic converter and the exhaust heat recovery device, and that is bent or curved toward the vehicle transverse direction one side with respect to a vehicle front side.

Abstract: The present invention includes (i) a liquid storing tank in which an impregnating liquid is stored, (ii) a hollow tube provided in the liquid storing tank, (iii) a vacuum pump which produces a vacuum in one end of the hollow tube, and (iv) a transport mechanism which transports a porous material in the impregnating liquid drawn into the hollow tube. A degree of vacuum in the vacuum is maintained in a given range.

Abstract: An exhaust pipe structure includes an exhaust pipe, a branching portion including an inflow port, a first flow path, a second flow path, a first discharge port, and a second discharge port, a first muffler, a first pipe, a second muffler, and a second pipe. The second flow path is lower in position in an up-down direction of a vehicle than the first flow path at a downstream side part of the second flow path including at least a portion of the second discharge port. The second pipe is lower in position in the up-down direction of the vehicle at an upstream side part connected to the second discharge port than an upstream side part of the first pipe connected to the first discharge port.

Abstract: There provided a vehicle lower structure including: an exhaust pipe which is disposed below a floor panel of a vehicle and in which an exhaust gas from an engine flows; an undercover that covers the exhaust pipe from below; and an inflow port that allows running air to flow into between the exhaust pipe and the undercover.

Abstract: An exhaust pipe structure has: an exhaust pipe through which exhaust from an engine flows; a communicating portion that is formed in a lower surface side of the exhaust pipe further toward a downstream side, in a direction of flow of the exhaust, than a catalyst device provided at the exhaust pipe, and that communicates an interior and an exterior of the exhaust pipe; and a porous body that is disposed at the communicating portion and that leads moisture, which is at the interior of the exhaust pipe, to the exterior of the exhaust pipe by capillary action.

Abstract: An exhaust heat recovery device of the present invention has: a first pipe through which exhaust from an engine flows; a second pipe that branches-off from the first pipe, and at which is disposed a heat recovery apparatus that carries out heat exchange with the exhaust and recovers exhaust heat; a valve member that adjusts an amount of flow of the exhaust that flows-in from the first pipe to the second pipe; and plural driving members that drive the valve member.

Abstract: In a distribution flow path that allows engine coolant to circulate between an exhaust heat recovery unit and an engine, an upstream flow path on the upstream side of the engine and a downstream flow path on the downstream side of the engine are communicated with each other by means of a bypass flow path to thereby form a short flow path with a shorter flow path length than in a case where the engine coolant that has exited the exhaust heat recovery unit passes through the engine. A valve that can adjust the amount of the engine coolant flowing to the bypass flow path and a short flow path pump are disposed.

Abstract: An exhaust heat recovery device includes: a first pipe through which exhaust gas from an engine flows; a second pipe that communicates with the first pipe and bypasses the first pipe; a heat recovery unit that is disposed at an interior of the second pipe, and that exchanges heat between the exhaust gas and cooling water that circulates at an interior of the heat recovery unit, and that recovers heat of the exhaust gas; and a heat transfer suppressing mechanism that is provided at a portion connecting the first pipe with the second pipe, and that suppresses transfer of heat from the first pipe to the second pipe.

Abstract: A method of observing a three-dimensional image of an examinee's eye to be examined, includes: obtaining a first three-dimensional image which is a three-dimensional image of an anterior segment of the examinee's eye by optical coherence tomography for obtaining a tomographic image by converging a measurement light on the anterior segment of the examinee's eye; obtaining a second three-dimensional image which is a three-dimensional image of a fundus of the examinee's eye by optical coherence tomography for obtaining a tomographic image by converging the measurement light on the fundus of the examinee's eye by a timing different from a timing of obtaining the first three-dimensional image; constructing a three-dimensional eyeball image of the examinee's eye through image processing based on the obtained first and second three-dimensional images; and displaying the constructed three-dimensional eyeball image on a monitor.