Abstract: A heat generator for a motor vehicle comprises a rotor (1), a stator (13) in which the rotor (1) induces by rotation electrical currents that generate heat in the stator (13), and a coolant duct (16) adjacent to the stator (13) through which flows a liquid for extracting the heat generated in the stator (13). A device for regulating the working temperature of a liquid-cooled internal combustion engine comprises such a heat generator and an actuator (19) for the stator (13) for regulating the heat generated by the stator (13) by changing the distance between the stator (13) and the rotor (1). The stator (13) is mounted to be pivotal relative to the rotor (1) for changing the distance between them and thus for regulating the heat generated in the stator (13) and regulating the working temperature of the internal combustion engine (3).

Abstract: A two piece molded roof structure is provided for enclosing the cab of a work vehicle. The roof structure has an upper roof member mounted to a lower roof member. The lower roof member has a plurality of contours and apertures for receiving the components of an HVAC system, and for defining air passages. When the upper and lower roof members are joined discrete air passages are formed between the roof members. The roof structure includes fresh and recirculated air intakes communicating via an uncirculated air duct and with an HVAC core chamber housing an HVAC core. Filters are mounted in the air intakes. One or more blowers communicate between the core chamber and a conditioned air duct which has vents communicating with the cab interior. Air is thus drawn in through the intakes and directed through the unconditioned air duct to the HVAC core and then the blower expels the air into the conditioned air duct and into the vehicle cab.

Abstract: Devices and methods for moisture removal from conditioned air. A speed control is provided that selectively operates the blower motor of an air conditioning system at a lower speed. The speed control may include a time delay circuit and single pole, double throw relay. The speed control is used to slow the speed of the air cycler during the initial stage of a cooling cycle. This initial stage is typically the first 5-7 minutes of the air conditioning cycle. In a further aspect, a humidistat is operably associated with the system for detection of humidity levels within the air of a home or other structure. The system is programmed to close the motorized outside air damper in the event that humidity levels exceed a predetermined level, thereby limiting further entry of humid outside air into the home.

Abstract: A substrate treating apparatus for heating a treating solution formed of a chemical and a diluent, and immersing substrates in the treating solution for treatment.

Abstract: In a ventilation system of a motor vehicle, a film valve can selectively open and close an air path opening defined by a housing with a rib or projection that encircles such opening. The rib can define a point contact between the film valve and the housing when viewed in cross-section. The rib geometry can include substantially straight edges in cross-section and/or can include arcuate edges. Different geometry can define the rib at different cross-sections. The point contact defined between the rib and the film valve substantially reduces noise generated when the film valve moves relative to the rib, especially when the film valve has been subjected to a harsh environment.

Abstract: Until this time, the problem of ice and snow buildup on windshields has been dealt with using a technology that was developed to remove water from the exterior and condensation from the interior. Ice and frost removal from the outside of a windshield using the defrost system required an extensive warm-up period combined with the manual operation of an ice scraping device. This method is impractical when the vehicle is moving. Attempts to melt ice and snow on the rear window using electric resistance wires embedded in the glass work well, but cannot be used in front facing applications because of interference with vision caused by the wires. The forced hot air approach proposed in this invention allows the glass to remain clear, and aids the windshield wipers in removing the softened and/or melted snow, a job for which the wipers were designed.

Abstract: A heating system for heating air, especially for heating the interior of a motor vehicle, with a first heater (10), a second heater (12), and a flow path between the first heater (10) and the second heater (12), there being at least one auxiliary fan (50) with which a flow in the direction from the second heater (12) to the first heater (10) can be produced and a process for influencing the air flows in the heating system are designed to counteract overpressurization. Furthermore, an air heater and a process for detecting backflowing hot air through an air heater use a temperature sensor in an inlet area of the heater for that purpose.

Abstract: There are situations in which an operator remains in an operator station of a work machine when an engine of the work machine is inactive. The present invention includes a control system for, and a method of, heating the operator station when the engine is inactive. A heating system of the work machine includes an electrically-powered coolant pump, a power source, and at least one piece of warmed machinery. An operator heat controller is moveable between a first and a second position, and is operable to connect the electrically-powered coolant pump to the power source when the engine is inactive and the operator heat controller is in the first position. Thus, by deactivating the engine and then moving the operator heat controller to the first position, the operator may supply electrical energy to the electrically-powered coolant pump, which is operably coupled to heat the operator station.

Abstract: In a hybrid hot air heater according to the present invention, a chassis having first and second outlets 13 on its front face and first and second inlets 12 on its rear face incorporates therein a gas heater unit 2 comprised of a gas burner 20 and a first air-blowing fan 21 and an electric heater unit 3 comprised of an electric heater 33 and a second air-blowing fan 30 in such a manner that the air blowing systems for the respective two heaters may be independent of each other.

Abstract: A system and method for controlling delivery of conditioned water to a plurality of heat exchangers includes a system controller which gathers information as to the current and future demands for conditioned water by a plurality of zone controllers associated with the plurality of heat exchangers. The system controller is operative to provide conditioned water to the heat exchangers even though current demands for conditioned water may not be sufficient to require the provision of conditioned water to the heat exchangers. The system controller analyzes current demands for conditioned water in combination with future demands for conditioned water to determine if the combined demands exceed a minimum level or number of demands necessary to authorize provision of conditioned water to the heat exchanger.

Abstract: A system and method for controlling delivery of either heated or cooled water to a plurality of heat exchangers includes a system controller which gathers information as to the current and future heating or cooling demands of a plurality of zone controllers associated with the plurality of heat exchangers. The system controller is operative to provide heated or cooled water to the heat exchangers even though current heating or cooling demands may not be sufficient to require the provision of heated or cooled water to the heat exchangers. The system controller analyzes current demands for heating or cooling in combination with future demands for heating or cooling to determine if there is any combination of current and future heating or cooling demands that exceed a minimum level or number of demands necessary to authorize heating or cooling.

Abstract: A vehicle occupant compartment heating system includes a housing having an air inlet side and an air discharge side. A heat exchanger heated by engine cooling water, is mounted in the housing at the air inlet side. Electric heating coils powered by the vehicle current generator are mounted in the housing adjacent the heat exchanger and disposed between the heat exchanger and air discharge side. A blower with a fan is mounted in the housing for drawing air through the housing from the air inlet side to the air discharge side. A controller controls the operation of the electric heating coils to operate the heating coils to provide heat at least until the heat exchanger is heated by the engine coolant.

Abstract: In heat supply equipment provided with a plurality of maintenance object units, secure and prompt servicing and maintenance is implemented and a burden on a person in charge of managing the heat supply equipment is decreased.

Abstract: A compact vehicle heating system and method is provided which includes mechanisms to selectively shut down heating systems. For example, when domestic hot water is required, space heating and engine preheating systems can be shut down in order to provide priority heating to the domestic hot water. When the demand for domestic hot water is lower, the space heating and engine preheat systems can be reactivated.

Abstract: Apparatus for effecting reactions comprising a plurality of reaction vessels for holding reagents, an electrically conducting polymer which emits heat when an electric current is passed through it, and control device for controlling supply of current to the polymer, the polymer being connectable to an electrical supply via the control device. The control device may be arranged such that different currents and therefore different temperatures can be achieved in each reaction vessel. Certain novel reaction vessels are described and claimed. The apparatus are reaction vessels may be used in carrying out reactions which require multiple temperature stages such as amplification reactions such as the polymerase chain reaction.

Abstract: A combustion type heater of this invention includes fuel distribution means 11 for distributing a fuel to the whole surface of a wick 10, disposed upstream of the wick in a fuel passage. The fuel distribution means comprises fuel distribution grooves 15 and a fuel dispersion plate 16 having a large number of holes bored therein. The fuel distribution means can quickly supply the fuel to the whole surface of the wick. To shorten the heating time of the wick, the heater of the present invention uses a wick heating glow plug 14b outside an ignition glow plug 14a, or a planar heater 18, for heating the wick.

Abstract: In a vehicle air conditioner where a foot mode and a foot/defroster mode can be set, when a target temperature of air blown into a passenger compartment is higher than a predetermined temperature, the foot mode is selected. However, even if the target temperature of air is higher than the predetermined temperature, the foot/defroster mode is selected in place of the foot mode when an outside air temperature is lower than a predetermined temperature and when a vehicle speed is higher than a predetermined speed. In the vehicle air conditioner, because the foot/defroster mode can be suitably automatically selected based on a fog-generation condition of a windshield, both fog-preventing performance of the windshield and heating performance of the passenger compartment are improved during heating operation.

Abstract: A heat pump or air conditioning system includes a process for calculating on a real time basis the capacity contribution of each of a number of heating or cooling stages. The calculated contribution is utilized to determine the number of stages that need to be activated at any point in time in the heat pump or air conditioning system.

Abstract: A heating system controller is suitable for controlling a heating system based on a plurality of sensed control signals representing control parameters. The heating system controller has a first input suitable for being coupled to provide a control signal. The heating system controller also includes a sensor, coupled to the first input, for sensing control signals at the first input, the control signals having a first pattern, a second pattern, or a third pattern detected over at least two successive time periods. The heating system controller includes a control mechanism, coupled to the sensor for controlling the heating system based on the first, second and third patterns. The control mechanism causes the controller to change modes when the third pattern is sensed.

Abstract: The present invention relates to transforming a pre-existing heating installation comprising a main heat generator such as a boiler which is associated with a modulating mixer valve controlled by a P or PD type regulator which is responsive to outside temperature and to the departure temperature of the heating water.

Abstract: A process for controlling heat output of a heating device, such as an auxiliary heating device for a vehicle, and a switching arrangement for performing such process. The governing value in controlling the heat output is the temperature gradient with respect to time during heating of a heat exchange medium between two temperature threshold values. The threshold values are empirically determined and prespecified. The operating condition of the heating device is regulated in dependence upon the slope of the temperature gradient which is determined, preferably, based upon the time for heat-up of the heat exchange medium. The heat-up time is measured with the aid of a timer, and the heating time thus measured is compared with predetermined, prespecified values therefor.

Abstract: A transport mechanism for heat in housing includes the use of liquid media such as warm water and gaseous media such as heated air. For either of these heat transport media, a circulation pump or a blower is necessary with the exception of special cases. This invention relates to a heat transport method where the heat media is evaporated by a steam generator which is fed up to an objective heat emitting device through steam tubes. At this heat emitting device, the steam is condensed for utilization of the latent heat being obtained by this condensation to space heating, water heating and so on. Further, the condensed heat media liquid is once stored in a condensed liquid vessel which is under atmospheric pressure, and the heat media liquid inside the condensed liquid vessel is circulated into the steam generator via steam tubes by stopping the heating of the steam generator and utilizing the pressure reduction being caused inside the steam generator.

Abstract: The present invention comprises a heat source wherein a vaned rotor (2) is rotatably supported within a cavity (18) formed in a casing (16). Inlet (42) and outlet (54) ports in the casing (16) respectively conduct heat transfer fluid to and from the cavity (18). Heat is generated by blocking the inlet (42) and outlet (54) ports while rotating the vaned rotor (2) to impart mechanical energy of motion to heat transfer fluid contained within the cavity (18). Frictional forces subsequently developed between layers of rotating fluid particles serve to convert essentially all of the mechanical energy of motion of the fluid particles into heat. After the heat transfer fluid reaches a predetermined temperature, the rotation of the vaned rotor (2) is stopped and the inlet (42) and outlet (54) ports are unblocked, thereby enabling the conduction of hot heat transfer fluid to a remote heat transfer surface (116). An electrical control circuit (C) governs the sequencing of the heat generating and transfer cycles.