Abstract: A rotary door for a vehicle air conditioner includes a rotation shaft, a door surface that is spaced from an axial line of the rotation shaft radially outside and is rotated integrally with the rotation shaft, and a seal portion provided at a peripheral end portion of the door surface. The door surface has a first door face at a center portion, and a second door face positioned at left and right sides of the first door face. The second door face has a radial dimension from the axial line, that is smaller than that of the first door face so as to form a door outer peripheral space between the seal portion of the second door face and a seal rib of an air conditioning case. Furthermore, the second door face is provided with an air guide plate extending radial outside for guiding air.

Abstract: Sharp bends in a defrost duct extending from a defrost outlet to a windshield, and in a face duct extending from a face outlet to both sides of a front passenger seat, are eliminated and the duct resistance of these ducts is reduced. Moreover collision safety of passengers is improved, and an interior space of a vehicle is expanded forward. In an air-conditioning unit to be positioned to the front of a front seat of a vehicle, an evaporator is positioned below and behind a blower, and a heater core is positioned below and in front of the blower. Preferably the air-conditioning unit is of a crushable structure wherein, in the event of a vehicle collision, a wall of the main cover behind the evaporator is broken, or component parts housed within the main cover are moved, to thereby absorb the impact energy.

Abstract: An energy recovery ventilator and method for monitoring and maintaining an environmental condition inside a structure such as a house, building, or dwelling is provided. The ventilator may include a housing having mating halves of a molded polymeric material, first and second chambers disposed within the housing to convey separate first and second streams of air, a heat exchanger configured to intersect the first and second chambers, a first fan to circulate the first air stream through the first chamber, a second fan to circulate the second air stream through the second chamber, and a fan motor driving the first and second fans. The ventilator may also be configured to prevent frost build-up in or on the energy ventilator, to provide efficient cooling, and maintain one or more desired environmental conditions.

Abstract: The invention relates to an apparatus for cooling components in spacecraft, comprising a heat radiator (5) and a heat conductor (3; 3a, 3b). A versatile applicability is achieved in such a way that the heat conductor (3, 3a, 3b) penetrates an outside wall (1) of the spacecraft and is provided in the interior of the spacecraft with several coupling places (8) for components to be cooled (20) and/or for other heat conductors (10).

Abstract: An encasement assembly for installing sub-surface refrigerant tubing in a direct exchange heating/cooling system includes a weighted and protective encasement tube for lowering the bottom distal U-bend portion of the refrigerant tubing into a well/borehole. The encasement tube has a main body portion and a rounded or cone-shaped nose. The U-bend portion of the distal end of the refrigerant transport lines is encased within a cementitious grout inside the tube. The grout inside the encasement tube has a flat top portion to prevent upward flotation and at least one eyebolt for securing a trimmie tube with an expendable wire during installation. An optional nose ring is attached to the lower distal end of the tube for marker float attachment in water.

Abstract: A temperature control apparatus including a temperature control head kept in contact with an electronic device as a testing object thermally, an electric heater attached to the temperature control head, a refrigerant passage formed within the temperature control head so as to run through inside thereof, a compressor which compresses refrigerant coming out of the temperature control head, a temperature sensor which detects a temperature of refrigerant on an outlet side of the compressor, a condenser which condenses refrigerant coming out of the compressor, a returning portion which returns refrigerant condensed by the condenser to the temperature control head, and a control portion which bypasses the condensed refrigerant to the intake side of the compressor by a predetermined quantity corresponding to an output of the temperature sensor.

Abstract: A rotatable electrically actuated valve having a spindle with axially spaced grooves and lands constructed and arranged to selectively connect an auxiliary air conditioning system to a truck cab while isolating the truck air conditioning system, and for connecting the truck air conditioning system to the truck cab, while isolating the auxiliary air conditioning system.

Abstract: A cooling system for a work vehicle is disclosed that includes first and second heat exchangers disposed one above the other to create two discrete flow paths. The upper heat exchanger is an engine water cooler and the lower heat exchanger may be an intercooler, an oil cooler or a refrigerant condenser. The lower heat exchanger is disposed forward of the upper heat exchanger. Additional heat exchangers may be positioned in front of the first and second heat exchangers to provide additional cooling. The first and second heat exchanger may be cross-flow heat exchangers conducting the fluid to be cooled laterally through the core of the heat exchanger.

Abstract: An air-outlet mode selecting device includes first and second rotary doors. Each of the first and second rotary doors has rotary shafts separated from each other in an axial direction of the rotary shafts, an outer peripheral door surface that is provided at a position separated radial outward from the center line of the rotary shafts and is turned with the rotary shafts, and left and right side plates for connecting both ends in the axial direction of the outer peripheral surface and the rotary shafts. One of the first and second rotary doors opens and closes a specified opening among three openings and other rotary door opens and closes the remaining two openings among the three openings. Accordingly, door operation force and air flow resistance can be effectively reduced, and the size of the air-outlet mode selecting device can be effectively reduced.

Abstract: A vehicle air conditioner includes an air-conditioning ECU. The air-conditioning ECU performs a cooling mode operation in which air is cooled by an interior heat exchanger in a cooling refrigeration cycle. The air-conditioning ECU performs a heating mode operation, in which air is heated by the interior heat exchanger in a hot gas heater cycle. The air-conditioning ECU performs an air blowing operation in which air is blown toward an inner surface of a windshield of the vehicle without operating the compressor before performing a refrigerant collecting operation.

Abstract: An object of the present invention is to prevent vibration of a sliding door within a guide groove through a fundamental review of the structures adopted in sliding door devices in the related art having a sliding door made to move along a direction intersecting an air flow path to control the flow rate or direction of air within the air flow path. The present invention is characterized in that a tension-applying means is disposed at a sliding unit of a sliding door, which is inserted at a guide groove formed on the inside of an air-conditioner case to apply tension between the sliding unit and the guide groove.

Abstract: Both an air mixing door (9) for the cold air for adjusting a passage area of the cold air passage (6); and an air mixing door (10) for the hot air for adjusting a passage area of the hot air passage (7) are composed of a sliding door for adjusting the passage area when the air mixing door (9) for the cold air and the air mixing door (10) for the hot air are slid in a direction perpendicular to the flow of air in both the passages (6, 7), and while one of the air mixing door (9) for the cold air and the air mixing door (10) for the hot air is maintaining one of the passages (6, 7) in a fully opened state, an operating position of the other door is adjusted so that a passage area of the other passage is adjusted and a temperature of the air blowing out into a vehicle compartment is adjusted.

Abstract: A vehicle cooling system comprises a vehicle unit, a heat exchanger, a cooling fan, a coolant pump, a three-way valve, and a control unit. The heat exchanger is arranged in the coolant route to selectively receive a coolant from the coolant outlet of the vehicle unit. The cooling fan is arranged to blow cooling air to the heat exchanger. The coolant pump is arranged to circulate the coolant through the coolant route. The three-way valve is arranged to switch the coolant route between a heat exchanger route that passes through the heat exchanger and a bypass route that bypasses the heat exchanger. The control unit is configured to control operation of at least one of the cooling fan, the three-way valve and the coolant pump based on a temperature of the coolant at the heat exchanger and a temperature of the coolant at the coolant outlet of the vehicle unit.

Abstract: A coolant sensor doubles as a bleed valve for purging trapped air from a cooling system. The sensor slides into a port placing a sensor element in contact with the coolant. The sensor includes a pair of encircling o-rings for sealing the system from atmosphere in one position and permitting bleeding in a second position. The bleed channel is in the sensor port between the o-rings. The sensor is moved so the innermost o-ring clears the narrow opening into the cooling system. The outermost o-ring maintains a seal to keep the coolant from leaking out of the sensor port. The sensor is held in either position by a horseshoe clip or by a bayonet arrangement, the horseshoe clip arrangement including multiple apertures for each position, the bayonet having a position to provide for safe bleeding of air from the cooling system without completely removing the sensor from its retention port.

Abstract: A temperature regulator having a heat exchange unit and a power supply and control unit and providing a heat-exchange apparatus, which can be installed in a minimal space and yet is very easy to handle. The temperature regulator includes a heat exchange unit which has a tank, a pump and a heat exchanger, and circulates a liquid to exchange heat with circulating liquid, and a power supply and control unit which has a power supply and control device, and controls temperature of the circulating liquid. The heat exchange unit and the power supply and control unit are arranged in an interior of a main frame.

Abstract: A control system for controlling delivery of either heated or cooled water over a common water line to a plurality of heat exchangers. The control system includes a hydronic system controller which polls the heating or cooling demands of zone controllers controlling the respective delivery of water to the individual heat exchangers. The hydronic system controller is operative to implement a changeover between delivery of heated water to delivery cooled water or vice versa. The implemented changeover preferably includes checking the temperature of the water being returned to the source or sources for heating or cooling the water as well as defining a changeover time period which must occur in the event that the temperature of the water in the return line is not within a predefined range.

Abstract: A vehicle air conditioner casing has defrost, face, and front seat floor vents variably communicating with a mixing chamber. Air passageways in the casing include an evaporator and heater core. A rear seat console vent communicates with a warm air passageway including the heater core and a cool air passageway through a console side cool air bypass passageway on the casing bottom surface, under the heater core. A front seat temperature adjusting door adjusts variably opens cool air passageway outlets and the warm air passageway with respect to the mixing chamber. A rear seat main temperature adjusting door variably opens warm air passageway inlets and the console side cool air bypass passageway. A rear seat auxiliary temperature variably adjusts the openings of warm air passageway outlets and the console cool air bypass passageway with respect to the rear seat console vent.

Abstract: The first cold air flow door 26 and the first hot air flow door 24 for adjusting the blowout air temperature are arranged in the first air passage, and the second cold air flow door 27 and the second hot air flow door 25 for adjusting the blowout air temperature are arranged in the second air passage. When a larger target air flow volume between the target air flow volume on the first air passage side and the target air flow volume on the second air passage side is selected so as to determine an air flow volume of the blower, in an air passage to which the smaller target air flow volume is applied, while the ratio of the cold air flow volume to the hot air flow volume is being maintained constant, the passage opening area is throttled by the cold air flow door and the hot air flow door.

Abstract: An HVAC system for work vehicle having an operator compartment for an operator is disclosed. The HVAC system includes a pressurizer blower and an air-conditioning system coupled to an electronic circuit. The electronic circuit is configured to reduce the output of the pressurizer blower when the operator selects a high output from the air-conditioning system. The HVAC system is also configured to provide defog operation in both a manual mode and an automatic mode of operation. The HVAC system is configured to reset the defog operation when the vehicle ignition is turned off or turned back on. The HVAC system is also configured not to reset the defog operation when the operator switches rapidly between the automatic mode and the manual mode of operation.

Abstract: An air conditioning system for cooling or heating an air, and for feeding the heated or cooled air to predetermined portions is characterized by comprising: a first circulating circuit for circulating a first heating medium; a second circulating circuit for circulating a second heating medium; a control unit for controlling the heat for executing heat exchange between the first heating medium and the second heating medium to flow through either the heat exchanger or the first heat storing device. Moreover, an air temperature is controlled by heat of the second heating medium.