Abstract: A cold energy storage system for a vehicle includes an air-conditioning unit that includes an evaporator and a heater core. The system stores cold energy during a cooling operation and supplements the cooling operation by using the stored cold energy after stoppage of the cooling operation. A cold energy storage tank (50) connects in parallel to an engine cooling circulation circuit to the heater core. The storage tank (50) has a liquid storage layer (50A) for engine coolant and a refrigerant layer (50B) in which refrigerant from the evaporator flows. A mode switcher switches between a storing cold energy mode and a cooling supplement mode. In the storing cold energy mode, engine coolant stored in the liquid storage layer (50A) is refrigerated during the cooling operation. In the cooling supplement mode, refrigerated engine coolant from the liquid storage layer (50A) is introduced to the heater core.

Abstract: In a heat storage system for a vehicle including a heat accumulator 3, in which engine coolant is stored and allowed to flow, in an engine coolant circulation circuit connecting an engine 1 and a heater core 2 of an air conditioning unit, the engine coolant circulation circuit is a circuit connecting heat accumulator 3 side inlet and outlet, engine 1 side inlet and outlet, and heater core 2 side inlet and outlet, and has a circuit configuration including four modes of a “heat storage mode,” a “heat storage maintaining mode,” a “quick engine warm-up mode,” and a “quick interior warm-up mode” to be selectable by switching a valve set in the circuit.

Abstract: In a heat storage system for a vehicle including a heat accumulator 3, in which engine coolant is stored and allowed to flow, in an engine coolant circulation circuit connecting an engine 1 and a heater core 2 of an air conditioning unit, the engine coolant circulation circuit is a circuit connecting heat accumulator 3 side inlet and outlet, engine 1 side inlet and outlet, and heater core 2 side inlet and outlet, and has a circuit configuration including four modes of a “heat storage mode,” a “heat storage maintaining mode,” a “quick engine warm-up mode,” and a “quick interior warm-up mode” to be selectable by switching a valve set in the circuit.

Abstract: In an accumulator including a vacuum heat-insulating layer 2 at the outer periphery of a liquid reserving portion 1, the liquid reserving portion 1 and the vacuum heat-insulating layer 2 are formed by stacking a plurality of tank constituting elements 10 composed of plate members of an identical cross-sectional shape. The liquid reserving portion 1 is composed of liquid reserving portion spaces 10f made to communicate by stacking the tank constituting element 10. The vacuum heat-insulating layer 2 is composed of heat insulating layer space 10e which are made to communicate by stacking the tank constituting elements 10 and are evacuated. The openings of the stacked tank constituting elements 10 at the both ends are closed with inlet and outlet cover plates 8 and 9.

Abstract: A cold energy storage system for a vehicle includes an air-conditioning unit (AU) incorporating an evaporator (6) and a heater core (9), and stores cold energy when a cooling operation is performed and supplements the cooling operation with use of the stored cold energy after the cooling operation is stopped.

Abstract: In a heat storage system for a vehicle including a heat accumulator S, in which engine coolant is stored and allowed to flow, in an engine coolant circulation circuit connecting an engine ENG and a heater core 30 of an air conditioning unit, the heat accumulator S is provided with an oil storage layer 5, in which transmission oil serving as a heat medium different from the engine coolant is stored and allowed to flow, between a hot water storage layer 1 and a side-surface vacuum heat-insulation layer 5.

Abstract: Disclosed is a heat exchanger tube (10) which is arranged so that air flow passes in an external circumference along a width direction thereof, and in which an internal passage (13) is divided by a partition wall (14) into an upstream side passage (13a) located on the upstream side of an air flow and a downstream side passage (13b) located on the downstream side of the air flow. The partition wall (14) is provided in the location such that a width (W1) of the upstream side passage (13a) is wider and a width (W2) of the downstream side passage (13b) is narrower.

Abstract: A condenser for use in a vehicle (A1) comprises, in an integrated manner, a condensation part (4), which cools a coolant that is discharged, at a high temperature and a high pressure, to the condensation part (4) from a compressor (1) of a refrigeration cycle, by radiating heat from the coolant by way of a heat exchange between the coolant and the external atmosphere, a reservoir tank (5) that stores the coolant that has been liquefied by the condensation part (4), and a supercooling part (6), which cools the liquid coolant that is discharged to the supercooling part (6) from the reservoir tank (5) at high pressure. The supercooling part (6) is configured to cool the liquid coolant that is discharged to the supercooling part (6) from the reservoir tank (5) at a high pressure by way of a heat exchange, which does not employ a radiator fin, between the high pressure liquid coolant and a low pressure coolant that is discharged from an evaporator (3) of the refrigeration cycle.

Abstract: A heat exchanger including a tube unit in which a plurality of tubes (2) which are disposed in a stacked state, a one side header tank part (4) which is provided at one end side of the tube unit and in which a returning tank chamber (12) is formed, an other side header tank part (5) which is provided at other end side of the tube unit and in which an inlet tank chamber (14) and an outlet tank chamber (15) are formed, an inlet pipe connecting part (18) and an outlet pipe connecting part (19) which are provided on the other side header tank part (5), inclined sections (16) and (17) configured to incline to a longitudinal direction of the tubes (2) being provided at two locations on the other side header tank part (5), the inlet pipe connecting part (18) and the outlet pipe connecting part (19) being provided on the inclined sections (16) and (17), respectively.

Abstract: A pipe connecting structure for a heat exchanger includes a header tank having a connect opening; a connector block having a passage configured to connect a pipe thereto; an adapter configured to connect the header tank and connector block to each other, the adapter having a first cylindrical part to be connected to the connect opening of the header tank, a second cylindrical part to be connected to the passage of the connector block, and a flange radially extending between the first and second cylindrical parts and being interposed between joint areas of the header tank and connector block; and a brazing material applied to a joint area of the flange to be joined to the header tank and a joint area of the flange to be joined to the connector block, so as to join the header tank and connector block together by brazing.

Abstract: A pipe of a header pipe is formed by combining two separated bodies separated along a longitudinal direction. The first separated body has a tube holding wall portion including an insertion hole inserting a flat tube thereto, and a pair of straight portions protruded from the tube holding wall portion in an approximately orthogonal direction and set along both sides in a width direction of the tube, and is formed in a C-shaped cross sectional shape.

Abstract: A pipe connecting structure for a heat exchanger includes a header tank having a connect opening; a connector block having a passage configured to connect a pipe thereto; an adapter configured to connect the header tank and connector block to each other, the adapter having a first cylindrical part to be connected to the connect opening of the header tank, a second cylindrical part to be connected to the passage of the connector block, and a flange radially extending between the first and second cylindrical parts and being interposed between joint areas of the header tank and connector block; and a brazing material applied to a joint area of the flange to be joined to the header tank and a joint area of the flange to be joined to the connector block, so as to join the header tank and connector block together by brazing.

Abstract: A pipe of a header pipe is formed by combining two separated bodies separated along a longitudinal direction. The first separated body has a tube holding wall portion including an insertion hole inserting a flat tube thereto, and a pair of straight portions protruded from the tube holding wall portion in an approximately orthogonal direction and set along both sides in a width direction of the tube, and is formed in a C-shaped cross sectional shape.

Abstract: A plurality of cooling tubes (7) are connected and communicated with one another in multisteps in a vertical direction bridging a pair of header pipes (3). One of the header pipes (3) is provided with a liquid tank (9) for storing a cooling medium in a liquid phase which has been condensed and liquidized by cooling, and an auxiliary machinery part (23) is fitted to a peripheral wall face 9a of the liquid tank which serves as a large mounting face.