Abstract: A dust collection device has a tank, a suction unit, a filtering unit, a dust removal unit, a first detection unit, and a control unit. The tank has an air inlet for accommodating dust. The suction unit aspirates the dust through the air inlet. The filtering unit captures the dust through the air inlet. The dust removal unit removes the dust from the filtering unit. The first detection unit detects an operational state of the suction unit. The control unit controls the suction unit and the dust removal unit. The control unit activates the dust removal unit, when the first detection unit detects that the suction unit operates for a first predetermined time period and then stop operating.

Abstract: A process is provided for monitoring the filter restriction level of a filter element. The filter element is utilized by an air induction system deployed on a vehicle that includes a mass air flow sensor, a manifold pressure sensor, and a throttle position sensor. The process includes receiving (i) throttle position from the throttle position sensor, (ii) mass flow rate from the mass air flow sensor, and (iii) manifold pressure from the manifold pressure sensor. A reference pressure is determined from the received mass flow rate and the received throttle position, a pressure differential is established between the reference pressure and the received manifold pressure, and a filter restriction level is identified from the established pressure differential and the received mass flow rate.

Abstract: An air filter and fan device for a vehicle ventilation system is disclosed that, in direction of air flow, includes an air filter, an impeller, and a flow-off channel. A casing is provided that accommodates the impeller and the flow-off channel in an enclosing manner such that the impeller is established with double-suction, receiving air from the air filter from both a first side and a second side or the impeller.

Abstract: The invention concerns a filter housing (1), in particular of an air filter for motor vehicles, that extends axially along a longitudinal axis (2) and comprises two detachably connected housing parts (3, 4). A locking connection (5) acting in the direction of the longitudinal axis (2) is provided between the two housing parts (3, 4), wherein the locking connection (5) in at least one rotational direction (6) of the first housing part (3) about the longitudinal axis (2) relative to the second housing part (4) can be brought into a position in which the housing parts (3, 4) are detachable in the axial direction.

Abstract: A filter assembly for mounting over an opening at an end of a forced air system duct, such as a cold air return. The filter assembly is designed to replace an existing louvered grill covering. The filter assembly is dimensioned which substantially retains the shape and appearance of the conventional duct grill being replaced. The filter assembly includes a filter frame having a perforated back wall, horizontal and vertical walls extending forwardly from the periphery of the perforated back wall defining an open front end and a filter receiving space between the perforated back wall and the open end. A rectangular grill having a peripheral flange extending rearwardly therefrom. The rectangular filter frame being received interiorly of the peripheral flange. A filter element being removably seated within the filter receiving space and being sandwiched between the perforated back wall and the grill causing the entire surface of the filter element to substantially contact the perforated back wall.

Abstract: A crop pick-up head for use with a harvesting machine to collect and separate a crop from a continuous paper tray on which the crop has been placed. The pick-up head has a support frame attached to the front of the harvesting machine, a fork to lift the paper tray, a guide plate positioned above the fork for the paper tray to slide between, a forward brush that pushes the crop off of the paper tray and onto the guide plate, a pulling mechanism to pull the paper tray and a conveying mechanism that receives the crop and conveys it to a bin. The pulling mechanism can comprise a roller, brush and mechanism to direct the paper tray between the roller and brush. The conveying mechanism can comprise a tube configured to receive the crop and a source of pressurized air to convey the crop to the bin.

Abstract: A foot-actuated mower deck lift mechanism for a riding lawnmower comprising first and second foot pedals for adjusting the cutting height of the mower deck. The foot pedals are suitable for engagement by an operator's foot to raise, latch and lower the cutting deck. The first pedal is connected to a lift linkage to adjust the height of the cutting deck upon actuation of the first pedal by the operator's foot. The second pedal is configured to automatically latch the mower deck into a raised transport position when the first pedal is depressed a preset amount, and to unlatch the mower deck upon actuation by the operator's foot. An adjustable pin-actuated height index mechanism is implemented to provide a plurality of predetermined cutting heights for the mower deck.

Abstract: A fuel delivery system (10) comprises a variable displacement pump (20) for pressurizing fuel. The variable displacement pump has a distinct first pump displacement setting for a first desired mass flow of fuel and a distinct second pump displacement setting for a second desired mass flow of fuel. The variable displacement pump operates in only one of the first and second pump displacement settings. A fuel control (22) with a metering valve downstream of the variable displacement pump selectively regulates fuel delivery.

Abstract: An oxygen storage capacity (OSC) monitoring system for a vehicle having a catalytic converter includes a control module that determines a measured OSC based on an inlet sensor signal (ISS) that is responsive to an oxygen content of exhaust flowing into the catalytic converter. The control module determines a normalization ratio based the measured OSC and determines a PASS/FAIL status of the catalytic converter based on the normalization ratio.

Abstract: A method for simultaneously measuring one or more properties (e.g. temperature, concentration of NOx and ammonia, etc) in an exhaust gas mixture. Signals from one or more sensors that are cross-sensitive to one or more gases can be combined. A decoupling observer algorithm can be applied, such that these cross-sensitivities are decoupled. The sensors simultaneously obtain an estimate of one or more gases in the diesel exhaust. A decoupling observer algorithm can be structured and arranged to be operable among a plurality of positions corresponding to several internal configurations.

Abstract: A method for controlling regeneration of a lean NOx trap includes estimating an accumulated NOx in the lean NOx trap; determining whether the estimated NOx exceeds a first threshold value or a second threshold value; estimating the temperature of the lean NOx trap; determining whether the estimated temperature exceeds a threshold temperature; determining a desired air-fuel ratio for initiating a regeneration event, the desired air-fuel ratio being determined based upon the estimated NOx and the estimated temperature of the lean NOx trap; hastening the occurrence of a regeneration event when the estimated NOx exceeds the first threshold value through active control of engine operating regimes; and initiating a regeneration event when the estimated NOx exceeds the second threshold value or when the estimated temperature exceeds the threshold temperature by forcing homogenous operation of the engine at the desired air-fuel ratio.

Abstract: A NOx trapping catalytic converter diagnostic apparatus basically has a particulate matter accumulation estimating component, a particulate matter accumulation detecting component and a deterioration determining component. The particulate matter accumulation estimating component is configured to estimate an estimated amount of particulate matter accumulated a particulate matter filter that is positioned downstream of a NOx trapping catalytic converter. The particulate matter accumulation detecting component is configured to detect a detected amount of particulate matter accumulated in the particulate matter filter. The deterioration determining component is configured to determine if deterioration of the NOx trapping catalytic converter has occurred based on the estimated amount of accumulated particulate matter and the detected amount of accumulated particulate matter without using a NOx sensor to determine if the NOx trapping catalytic converter has deteriorated.

Abstract: The present invention provides a catalyst for combustion treatment of suspended particulate matter in diesel exhaust gases, and a combustion catalyst for treating diesel exhaust gases in which a precious metal or an oxide thereof as the catalytic component is loaded on a carrier composed of oxide ceramic particles comprising ceria-zirconia or ceria-praseodymium oxide. In the present invention, depending on the carried precious metal, the carrier is preferably composed of oxide ceramic particles further comprising yttria or lanthanum oxide. The present invention provides a sufficient activity to combust suspended particulate matter in exhaust gases, and can cause combustion at a low temperature of about 300° C. It operates stably for a long period, and can burn suspended particulate matter, especially carbon microparticles.

Abstract: Sensing accuracy of a temperature sensor is enhanced so as to accurately conduct regeneration control of a particulate filter. Disclosed is an exhaust emission control device wherein a pair of dispersion plates 10 and 11 with a number of communicating holes 10a and 11a are arranged in a filter casing 7 incorporated in an exhaust pipe such that the plates are opposed to each other in a direction of flows of exhaust gas 3, catalytic regenerative particulate filter 6 being received in a reception chamber 12 defined by and between the dispersion plates 10 and 11. A temperature sensor 14 is arranged in the filter casing 7 so as to detect exhaust temperature in the reception chamber 12, a sensing element 15 of the temperature sensor 14 being adapted to be in one of flows of the exhaust gas 3.

Abstract: An improved exhaust system and catalytic converter element for a diesel engine wherein the improvement comprises: holding means for restricting the movement of catalytic converter elements in an overhead exhaust manifold; an improved catalytic converter element having at least one retaining rod extending through the catalyst substrate and/or having at least one retaining lip projecting into the substrate; a stabilizer projecting from the cover for the element insertion slot for receiving an end portion of the catalytic converter element to restrict the movement of the converter element in the exhaust manifold; perforated flow distribution elements provided upstream of the catalytic converter elements; and/or vertical coupling manifolds which each receive exhaust from a pair of engine cylinders and then deliver the combined exhaust stream to a separate one of the inlet openings in the bottom of the overhead exhaust manifold.

Abstract: A system for purifying the exhaust gases emitted by an internal combustion engine (2), comprising a series-connected catalytic silencer (3) and antiparticulate filter (4) which are traversed in succession by an exhaust gas flow leaving the engine (2), said antiparticulate filter (4) being located upstream of the catalytic silencer (3) such as to be traversed by the hot exhaust gases from the engine (2) before they cool substantially.

Abstract: An intake and exhaust tuning system is disclosed. The exhaust system includes a collector slidably mounted within the exhaust fluid path and adjustable by an actuator to change the fluid path length between the collector and the exhaust ports of an engine. The intake tuning system includes a sliding member engaging parallel straight sections of tubes forming the intake system. The position of the sliding member is adjusted to change the length of the intake fluid path. Sealing members suitable for use in the intake and exhaust tuning systems are also disclosed.

Abstract: An exhaust gas charger for a vehicle engine which includes an exhaust pipe with narrow openings at both ends thereof and a wide center cavity, an inner pillar at the axis of the pipe, a circular body, a wind skirt, a plurality of tension springs and a plurality of pulling rods, characterized in that the exhaust pipe is formed from the inner pillar having one end being mounted with a top tube and the other end is mounted with a rear tube such that the top tube and the rear tube are engaged with each other and a spring suspension hook is positioned at the engaging area of the two tubes and the circular body is positioned at the interior of the top tube and has a larger size than the opening of the top tube.

Abstract: The present invention broadly comprises a stator blade assembly for a torque converter stator including an inner ring having first openings; an outer ring having second openings; and extruded blades with first and second ends. The first end is disposed in a respective first opening and arranged to radially fix each blade with respect to the inner ring and the second end is disposed in a respective second opening and arranged to radially fix each blade with respect to the outer ring. In some aspects, the inner ring includes an inner circumferential surface and a portion of the first end extends radially inward past the inner surface and is in contact with the inner surface. In some aspects, the outer ring includes an outer circumferential surface and a portion of the second end extends radially outward past the outer surface and is in contact with the outer surface.

Abstract: A hydraulic circuit is provided, which can prevent the bucket from being separated from the bucket rest by preventing a change of stroke of a boom cylinder or an arm cylinder during long traveling of wheel type heavy equipment, and can secure safety since it is not required for an operator to adjust the position of a working device like boom and arm. The hydraulic circuit includes first and second hydraulic pumps, a boom cylinder, an arm cylinder, a boom confluence logic valve, a first port formed to connect with a large chamber of the boom cylinder in a housing in which a spool for the boom cylinder is shiftably installed, a second port formed to connect with a hydraulic tank in the housing, and a first orifice formed between the housing and a land part of the spool for the boom cylinder located between the first port and the second port.

Abstract: The invention relates to a drive system (1) having a first driving shaft (2) and having a second driving shaft (3). The second driving shaft (3) is connected to a cylinder barrel of a hydrostatic piston machine (4) in a torsionally rigid manner. The displacement volume of the hydrostatic piston machine (4) can be shifted by means of a shifting means (5), and the first driving shaft (2) can be mechanically coupled to the second driving shaft (3) through a clutch (6). The shifting means (5) and the clutch (6) can be actuated hydraulically and, for the purpose of actuation, are connected to a common control-pressure connection (11) or a common working-line connection (134).

Abstract: An electrically actuated brake booster capable of obtaining a desired boost ratio for a given input pressure when an electric actuator is activated as a boost source, so as to ensure a desired operability of a brake pedal. The electrically actuated brake booster comprises: an input piston 22 to which an input thrust is applied through an input rod 9 that moves in coordination with operation of a brake pedal 8; and a booster piston 21 to which a booster thrust is applied by an electric actuator 40 that uses an electric motor 41 as a drive source, such that the input piston 22 and the booster piston 21 are disposed to be movable relative to each other but are normally maintained in a neutral position of relative displacement by means of springs 34. While an amount of relative displacement between the pistons 21 and 22 is determined by the potentiometer 45, the electric motor 41 is controlled to adjust the amount of relative displacement to a predetermined value.

Abstract: In a vehicular brake system, an input piston and a pressure piston are coaxially and axially movably supported in a cylinder, and a brake pedal is coupled to the input piston. Pressure chambers formed on the axially opposite sides of the input piston communicate with each other via a communication passage. A control oil pressure can be supplied to a first supply port of the communication passage, and a reaction-force oil pressure can be supplied to a second supply port of a reaction-force chamber of the input piston, while braking oil pressures can be delivered from delivery ports of the respective pressure chambers.

Abstract: A turbocharger system having a compressor housing containing a rotating compressor wheel with a plurality of main blades that define an impeller passageway from an inducer to an exducer. Each main blade has a leading edge characterized by an extension forming a non-planar, conical inducer leading edge, and a trailing edge characterized by a reverse-clip-extension forming a non-cylindrical, conical exducer trailing edge.

Abstract: A turbocharger system for an engine includes first and second turbochargers, having air intake impellers which rotate in opposite directions. This enables the first and second turbochargers to be mounted on opposite sides of an engine in a symmetrical fashion, resulting in an aesthetically pleasing arrangement as well as air intake and exhaust piping being of the generally same length and configuration to optimize engine performance.

Abstract: An internal combustion engine (100) includes a crankcase (128) having a plurality of cylinders (126). An exhaust system (130) is in fluid communication with the plurality of cylinders (126) and includes a turbine (104) in operable association with a compressor (106). An intake system (124) is in fluid communication with the plurality of cylinders (126) and the compressor (106). A first EGR cooler (136) is in fluid communication with the exhaust system (130) through an inlet passage (142) that is connected to the exhaust system (130) between the plurality of cylinders (126) and the turbine (104). A second EGR cooler (140) is in fluid communication with the intake system (124) through an outlet passage (148) that is connected between the plurality of cylinders (126) and the compressor (106). A transfer passage (144) is disposed between the first EGR cooler (136) and the second EGR cooler (140).

Abstract: A wave energy converter includes a flexible pipe and an inlet. The flexible pipe floats on the water surface, following the wave form. Slugs of water and air enter, one after the other, through the inlet. Because the flexible pipe follows the shape of the wave, water is transported through a manifold to a pressure chamber connected to a generator. The inlet consists of a hollow, inflexible pipe attached to the throat of the flexible pipe. The inflexible pipe is fixedly attached to a buoyancy tank or plurality thereof. The buoyancy tanks are arranged in a vertical plane or in tandem, with the inflexible pipe passing along the plane vertical to the fore and aft axis of the buoyancy tank and the frontward portion projecting sufficiently ahead of the buoyancy tank with the flexible pipe terminating at a singular outlet. The entire apparatus is facing the oncoming waves.

Abstract: A method for protecting a gas turbine installation from overheating and for detecting flame extinction in the combustion chamber is described, in which air is compressed in a compressor unit and, after being admixed with fuel, is ignited in the form of a fuel/air mixture in a combustion chamber and is burnt, thus giving rise to a hot gas flow which sets a turbine stage in rotation downstream of the combustion chamber so as to perform expansion work. The pressure upstream of the turbine stage, that is to say the pressure pk of the compressed air in the plenum and/or the pressure within the combustion chamber pcom, is measured, in that a time change of the measured pressure, what is known as the pressure gradient ({dot over (p)}), is determined, in that at least one threshold value is selected, and in that the pressure gradient or a variable derived from the pressure gradient is compared with the at least one threshold value and, if the threshold value is overshot or undershot, a signal is generated.

Abstract: An external combustion engine including a container 10 sealed with a working medium 14 in liquid phase adapted to flow, a multiplicity of evaporators 201 to 204 for heating and evaporating part of the liquid-phase working medium 14, a multiplicity of condensers 221 to 224 for cooling and condensing the working medium 14 evaporated in the evaporators 201 to 204, and an output unit 11 for outputting by converting the displacement of the liquid-phase portion of the working medium 14 into mechanical energy. The multiplicity of the evaporators 201 to 204 share a heat source from which heat is supplied thereto.

Abstract: A power generator includes a hydrogen producing fuel in a first high pressure chamber. A fuel cell having a proton exchange membrane is disposed in a second low pressure chamber. A water absorbing material provides water vapor to the hydrogen producing fuel, and a plurality of valves control hydrogen provided to the fuel cell from the first high pressure chamber, and exposure of the water absorbing material to ambient and the high pressure chamber.

Abstract: By using a plug to charge a medium-sized battery of the most up-to-date technology, the Rabbat PLUG-IN ENGINE benefits from the most up-to-date and most economical available grid supply at any point in time, to start the engine. The Direct Current from the battery sequentially activates an Ultrasound Transducer. The ultrasound waves break down physically electrolyte water into H and OH. The electrolyte carrying H or OH according to whether it is the cathode or the anode, is absorbed into a microfiber substance. The microfiber contains a wire-grid electrode, either anode or cathode. The electrolytic process finally breaks down chemically the partially ionized electrolyte into Hydrogen and Oxygen making use of the H and OH produced by sonic waves The Oxygen produced is passed through an Ionizer. Ionized ambient air, ionized Oxygen, and Hydrogen are injected into and piezzoelectrically sparked in the combustion chamber of a special cored type of gas turbine.

Abstract: Location rings 3, 23 are generally known to present a sealing ring 2, 12 in combustor parts of a gas turbine engine. The location rings 3, 23 act to present the sealing rings 2, 12 such that fuel spray nozzles are appropriately presented towards the combustor whilst these location rings 3, 23 are more susceptible to wear than a panel 4, 24 within which the arrangement 1, 10 is secured. Previously location rings 3 have been located by dedicated bolts 6 provided in drilled and tapped apertures in the panel 4. Each bolt 6 is typically spot welded to provide a lock feature such that upon repair and overhaul it is necessary to remove a heat shield 5 and then remove the spot welds before disassembly. By integrating the heat shield 25 with location ring 23 portions it is possible to utilize the existing heat shield retainer positions as fixing points 19 with associated rail or strap elements 16, 17 such that through overlap along retainer edges 26, 27 a desired retained configuration is achieved.

Abstract: A gas turbine engine having a longitudinal centerline axis therethrough, including: a fan section at a forward end of the gas turbine engine including at least a first fan blade row connected to a first drive shaft; a booster compressor positioned downstream of and in at least partial flow communication with the fan section including a plurality of stages, each stage including a stationary compressor blade row and a rotating compressor blade row connected to a drive shaft and interdigitated with the stationary compressor blade row; a core system positioned downstream of the booster compressor, the core system further comprising a combustion system for producing pulses of gas having increased pressure and temperature from a fluid flow provided to an inlet thereof so as to produce a working fluid at an outlet; a low pressure turbine positioned downstream of and in flow communication with the core system, the low pressure turbine being utilized to power the first drive shaft; and, a system for cooling the combus

Abstract: A lance (3) for introducing a fuel into a mixing path (2) of a burner (1) which is provided with a swirler for producing a swirled combustion air flow, especially a burner of a turbine plant, includes a lance head (5), a fuel feed (8) and an oxidator feed (10). The lance head (5) projects into the mixing path (2), has at least one fuel nozzle (6) for injection of the fuel into the mixing path (2), and also has at least one oxidator outlet orifice (7) for introducing an oxidator into the mixing path (2). The fuel feed (8) extends in the lance (3) and is connected to the at least one fuel nozzle (6). The oxidator feed (10) extends in the lance head (5) and is connected to the at least one oxidator outlet orifice (7).

Abstract: A method for operating a gas turbine engine including a compressor and a combustor is provided. The method comprises channeling between about 0% to about 8% of the total airflow discharged from a compressor towards a pilot swirler coupled within the burner, wherein the burner includes a main swirler and an annular centerbody extending between the pilot and main swirlers, injecting a portion of the total fuel flow supplied to the burner through a plurality of apertures defined in a hollow pilot centerbody coupled within the pilot swirler, channeling the remaining airflow discharged from the compressor towards the main swirler, and injecting the remaining fuel flow supplied to the burner through at least one main swirler vane coupled within the main swirler, such that the portion of fuel is pre-mixed with a portion of the total airflow.

Abstract: A method for multi-objective fault accommodation using predictive modeling is disclosed. The method includes using a simulated machine that simulates a faulted actual machine, and using a simulated controller that simulates an actual controller. A multi-objective optimization process is performed, based on specified control settings for the simulated controller and specified operational scenarios for the simulated machine controlled by the simulated controller, to generate a Pareto frontier-based solution space relating performance of the simulated machine to settings of the simulated controller, including adjustment to the operational scenarios to represent a fault condition of the simulated machine.

Abstract: The present invention provides a humid air turbine having a compressor, a humidificator for generating humid air by adding moisture to compressed air supplied from the compressor, a combustor, a turbine, a recuperator for effecting heat exchange between exhaust from the turbine and the humid air, an economizer for effecting heat exchange between exhaust from the recuperator and water, and a system for supplying the water heated by the economizer to the humidificator. The humid air turbine includes a temperature measurement device for measuring the temperature of gas discharged from the economizer, and a control device for adjusting the amount of moisture to be supplied to the humidificator in accordance with a temperature signal from the temperature measurement device. The present invention assures low NOx of combustor and flame stability before and after water addition to the humid air turbine.

Abstract: A pulse detonation device contains a pulse detonation combustor which detonates a mixture of oxidizer and fuel. The fuel is supplied through fuel ducts and the fuel flow is controlled by fuel flow control devices. Oxidizer flow is provided through a main inlet portion and a flow control device directs the oxidizer flow to either the combustor or to a bypass duct, or both. The combustor further contains an ignition source. Each of the flow control devices, fuel flow control devices and ignition source are controlled by a control system to optimize performance at different thrust/power settings for the device.

Abstract: A method of operating a power generation system is provided. The system includes a first gas turbine engine that uses at least one of a primary fuel and a secondary fuel, and at least one second gas turbine engine that operates using at least one of a primary and secondary fuel. The method includes supplying primary fuel to at least one of the first and second engines from a common fuel source coupled to the first and second engines, and selectively operating the first engine between a first operational position and a second operational position. The first engine using only secondary fuel in the first operational position and operates using only primary fuel in the second operational position. The method includes supplying the second engine with primary fuel from the common fuel source without flaring the primary fuel.

Abstract: This is an enhanced thermoelectric cooler with superconductive heat-dissipatve coolers for use in air-conditioner. This invention is comprised of a thermoelectric cooling chip sandwiched between two superconductive unidirectional heat-dissipative cooling devices. Each device consists of special superconductive pipes, heat-dissipative plates, and a fan. The cooling devices are to dissipate heat quickly from the thermoelectric cooling chip and to maintain constant hot to cold air flow.

Abstract: One embodiment of the present invention provides a system that cools integrated circuit (IC) chips within a computer system. During operation, the system converts heat generated by a heat-generating-device within the computer system into thermoelectric power. The system then supplies the thermoelectric power to an IC chip as a cooling power to reduce the operating temperature of the IC chip, thereby recycling wasted energy within the computer system.

Abstract: The cool down time for a multi-stage, pulse tube cryocooler is reduced by configuring at least a portion of the acoustic impedance of a selected stage, higher than the first stage, so that it surrounds the cold head of the selected stage. The surrounding acoustic impedance of the selected stage is mounted in thermally conductive connection to the warm region of the selected stage for cooling the acoustic impedance and is fabricated of a high thermal diffusivity, low thermal radiation emissivity material, preferably aluminum.

Abstract: In a helium 3 refrigerator-utilizing magnetic property measurement system which enables magnetization measurement to be effected till 0.3 K by utilizing the formerly proposed magnetic property measurement system (MPMS), a main pipe 23, for the object of enabling magnetization measurement to be infallibly effected even when the upper limit of magnetic field the MPMS can induce is applied, includes an upper supporting tube 41 positioned in the uppermost part and allowing a bellows 28 to be connected to the lateral part thereof, a condensing tube 42 supported first in the lower part of the upper supporting tube, an outer tube 44 fixed in the lower part of the condensing tube and adapted to form an outer wall of an insulated vacuum chamber 43 formed between the outer tube and a lower inner tube 45 forming an inner wall of the insulated vacuum chamber 43. In each of the tubes, the lower inner tube 45 is formed of titanium.

Abstract: A multi-circuit refrigerant system includes a plurality of circuits that are provided with distinct refrigerants. A control selectively matches a sensed environmental space conditioning challenge to selectively engage the plurality of circuits.

Abstract: A heat exchanger and method for defrosting a heat exchanger is disclosed and which includes a heat exchanger having a fluid receiving conduit, and at least one space which is defined, at least in part, by the fluid receiving conduit, an expandable and contractible heating element which is received within the space, and which is located in heat transmitting relation relative to the fluid receiving conduit, and a biasing member mounted on the heat exchanger and the heating element and which longitudinally, and resiliently restrains the movement of the heating element relative to the heat exchanger during the expansion and contraction of the heating element relative to the heat exchanger.

Abstract: A condenser in a refrigerant system is provided with a plurality of refrigerant circuits, with at least one of the plurality of circuits being equipped with a shut off device. A reheat coil is also incorporated into the refrigerant system to provide enhanced dehumidification functionality. By selectively shutting off at least one of the active refrigerant circuits in the condenser, the amount of heat rejected by the condenser as well as by the reheat coil can be controlled shifting the heat load between the condenser and reheat coil. In this manner, and in combination with operation of the reheat cycle, incremental dehumidification and cooling/heating can be provided and humidity and temperature can be precisely controlled.

Abstract: The invention relates to a device for cooling and dehumidifying air of a room, comprising a processing unit (7) that is embodied to process the coolant such that it is suitable for dehumidifying and/or cooling the air upon contact therewith, wherein cooling exceeding the cold due to evaporation can be achieved, a distribution unit (3), which is suitable for causing the coolant to flow past the air with direct contact, a collecting unit (5), which is suitable for feeding coolant that has flowed past the air back to the processing unit (7). The invention further relates to an associated method.

Abstract: A method, apparatus and system for transferring heat is disclosed using a first gas adsorbent material, and a second gas adsorbent material that is relatively thermally isolated from but in continuous gas communication with the first material. In a first step the first material is heated so as to desorb a gas adsorbed onto the first material whereby the gas passes to and is adsorbed onto the second material. In a second step the first material is cooled in a manner so that the gas is desorbed from the second material and passes therefrom to be re-adsorbed onto the first adsorbent material. When the gas is desorbed from the second material, the second material is cooled thereby. In this way a hot gas stream can be used to cool another gas stream.

Abstract: In an air conditioning system having a variable displacement compressor driven by an engine of a vehicle, method and device for controlling a refrigeration cycle are provided to ensure necessary cooling performance of the system without damaging the traveling performance of the vehicle. In the method, a limit value in the discharge rate of the variable displacement compressor is determined by an engine speed or a variable related to the engine speed. The variable displacement compressor is controlled on the basis of the limit value.

Abstract: A controller (117) for an air conditioner using a refrigerant as a heat source is constructed such that, when a refrigerant temperature detected by a refrigerant temperature sensor (116) has reached a specified value, air with a volume of normal setting is blown into a vehicle compartment, and when the refrigerant temperature has not reached the specified value, air blowing into the vehicle compartment by a blower fan (107) is limited.