Abstract: A cogeneration system and a method for controlling the cogeneration system in which waste heat of an engine is mainly used to prevent an outdoor heat exchanger from being frosted, or is used not only to prevent the outdoor heat exchanger from being frosted, but also to enhance the heating performance of an indoor heat exchanger, in accordance with ambient temperature conditions, so that the cogeneration system can positively cope with ambient temperature conditions, and can exhibit a high energy efficiency.

Abstract: A vent screen for an electronic device is provided. The vent screen may include a framework formed from an integral substrate, and a plurality of voids formed in the framework. Typically, the voids are formed by etching away portions of the substrate, and are separated from each another by a plurality of separators formed in the framework. The separators may have a width of less than 1 mm.

Abstract: A grilling apparatus includes a stove, a cap for closing the stove and a lighting device for lighting. The cap is pivotally connected with the stove. The cap can be lifted from the stove. The lighting device is detachably installed on the stove. Thus, the lighting device can light a cooking area around the stove. The lighting device an be detached from the stove and used as a flashlight.

Abstract: A portable outdoor enclosure protects occupants from at least some elements of nature and includes a wall panel forming an outer wall of the enclosure. The wall panel has an opening formed of sufficient size to allow an air conditioning unit to be inserted through the opening in the flexible material wall panel. A sleeve of flexible material is connected to the wall panel and extends in at least one of an inwardly direction and an outwardly direction. The sleeve includes at least one outer peripheral end spaced from the side wall capable of being snugly engaged with an external surface of an air conditioning unit to be installed through the sleeve. At least one flap can be provided for covering the opening through the wall panel when the air conditioning unit is not installed.

Abstract: A baffled roll vent for covering the ridge slot of a roof for allowing ventilation from the space of a building below the ridge slot, the baffled roll vent comprising a unitary panel defined by a length and a width, said width terminating at discrete louver portions. The center hinge allows flexing of the panel to conform to the pitch of a roof. The baffled roll vent may be used with a fibrous mat placed under the louver portions to prevent entry of particulate matter from the outside environment.

Abstract: A quickly detached cooling fan mounting bracket for a computer, by which a cooling fan can be quickly removed away from a computer chassis without detaching any other peripheral devices, whereby a large enough computer inner space is exposed in order to facilitate rapid replacement of electrical components. The cooling fan mounting bracket includes a cooling fan receptive mount; a cooling fan; a connecting member, which allows the cooling fan receptive mount to be movably installed on the computer chassis; and a orienting member, which secures the cooling fan receptive mount and the cooling fan onto the computer chassis, and prevents the cooling fan from vibration during the normal operation. Compared with the conventional art, the present invention is easier to remove the cooling fan away from the chassis, thereby, facilitates rapid replacement or maintenance of the computer components.

Abstract: A closed heating system drawing external power from a small electric generator. The heating system contains a hydraulic fluid drawn through restrictors and pumped through a heat transfer means attached to a means for circulating a heated fluid through a household.

Abstract: An orientation-independent compartment pressure relief valve comprises a housing with a throughflow channel having an intake and an exhaust. A flange disposed around the inner wall of said housing defines an aperture within the throughflow channel and sealing flap is secured to the flange sealingly covering said aperture. Sealing flap is comprised of a relatively pliable layer and a relatively rigid layer and is oriented such that relatively pliable layer is in contact with flange. Pliable layer allows sealing flap to flexibly open in response to compartment pressure and rigid layer acts to close sealing flap irrespective of pressure relief valve's orientation in relation to a gravity vector.

Abstract: An air conditioner includes an air conditioning case for defining an air passage through which air flows into a vehicle compartment, a functional member located in the air conditioning case for performing air conditioning of the vehicle compartment, an outside wall member arranged outside a side wall of the air conditioning case to form a clearance with the side wall, and a coupling part through which the outside wall member is integrated with the side wall. In this air conditioner, the outside wall member is located across approximately a projected line of a central line of the functional member extending in a longitudinal direction of the functional member, projected onto the side wall. Therefore, a vibration of the air conditioning case can be reduced, and a noise generation can be effectively restricted.

Abstract: A heating device, particularly for a vehicle, includes a burner for producing combustion heat, and also a heat exchanger for transferring combustion heat produced in the burner to a medium to be heated.

Abstract: Apparatus for controlling the delivery of air in a forced air distribution system having a source of air under pressure (4), a duct system to deliver the air, and a plurality of ports (8) in the duct system with each port defining an air delivery zone (16). The apparatus includes a vent member (20) associated with each of the ports which is movable between an open position to admit air to the zone and a closed position to block air from the zone. Independent actuator units (50) are provided to move the vent member between the open and closed positions controlled by a central control system. Thermostats in each air delivery zone communicate with the central control system (80) to control operation of the actuators units and the source of air under pressure which generally comprises heating or cooling equipment such as a furnace or air conditioning unit.

Abstract: A vehicle air-conditioning unit includes a plurality of doors for opening and closing an air passage within a unit case, and a link mechanism. The link mechanism has levers fixed to rotary shafts of the doors, respectively, to rotate with the rotary shafts of the doors, a base fixed to the unit case, and a main link rotatably or slidably supported on the base, being engaged with the levers for rotating the levers when driven by a driving means. The levers and the main link are disposed between the base and the unit case.

Abstract: A thermodynamic system that produces mechanical, electrical power, and/or fluid streams for heating or cooling. The cycle contains a combustion system that produces an energetic fluid by combustion of a fuel with an oxidant. A thermal diluent may be used in the cycle to improve performance, including but not limited to power, efficiency, economics, emissions, dynamic and off-peak load performance, and/or turbine inlet temperature (TIT) regulation and cooling heated components. The cycle preferably includes a heat recovery system and a condenser or other means to recover and recycle heat and the thermal diluent from the energetic fluid to improve the cycle thermodynamic efficiency and reduce energy conversion costs. The cycle may also include controls for temperatures, pressures, and flow rates throughout the cycle, and controls power output, efficiency, and energetic fluid composition.

Abstract: The present invention relates to distribution of conditioned air from automotive HVAC units, in particularly, distribution systems having both front and rear components. In particular, the present invention improves the temperature characteristics of the rear floor area of distribution in the cockpit, cab or passenger compartment, in a variety of temperature modes. By providing for a valving or closing off means on a rear distribution door, regulation and adjustment of the stratification and temperature of air reaching the rear, and especially, the rear floor area of the cockpit, cab or passenger compartment, is achieved by blocking or closing off a channel between the heater core area of the HVAC and the distribution system.

Abstract: A radiant heating system includes an air-to-fluid heat exchanger, a radiant heating loop and a pump and conduits to circulate heating fluid between the air-to-fluid heat exchanger and the radiant fluid loop. The air-to-fluid heat exchanger is installed within a hot air duct connected to a conventional forced air furnace; preferably in a section of the hot air duct located near the forced air furnace with an expanded cross-section. In operation, the apparatus uses heated air supplied by the forced air furnace to heat the heating fluid circulating through the apparatus. Some of the heat from an air flow supplied by the forced air furnace passing through the hot air duct is transferred to heating fluid in the air-to-fluid heat exchanger, installed within the hot air duct. This heating fluid is then circulated through a radiant heating loop to heat a desired area.

Abstract: A complete plastic HVAC system assembled using individual plastic components for ensuring the efficient and quiet distribution of air from a central air unit to multiple distribution points and preventing heating and cooling losses, the need for installers to stock multiple sized and shaped components, the accumulation of dust, dirt and pollens during storing, installing and use on the surfaces of the individual components. The fittings have a collar sizable to fit both 6 and 7-inch pipe, whether flexible or rigid. The use of plastic fittings, duct and pipe removes the potential of injury commonly associated with conventional metal ductwork, while providing seamless components that can be configured for any type of installation and insure an air tight connection between adjoining surfaces. The individual fittings include a register boot, torpedo boot, straight boot, rigid and flexible pipe and couplers, straight and 90-degree takeoffs, a plastic duct and duct end cap.

Abstract: A temporary heating apparatus comprises a portable heat exchanger which transfers heat from a hot fluid circulating in a primary circulation loop thereof to a heated liquid circulating in a secondary circulation loop thereof. The heat exchanger is connectable to a hot fluid source such that hot fluid from the hot fluid source circulates through the primary circulation loop. A portable remote heating unit comprises a fluid coil releasably connected by flexible conduits to the secondary circulation loop, and a secondary pump is connected to the flexible conduits and the secondary circulation loop to pump heated liquid through the secondary circulation loop, flexible conduits, and the fluid coil of the remote heating unit. The heat exchanger isolates the heating circuit from the hot fluid source, allowing the use of steam as the hot fluid source, and further allowing high pressures in the heating circuit, such as encountered in tall buildings.

Abstract: A hydronic baseboard heater for use with PEX tubing has a hold-down bracket which is snapped into the baseboard enclosure to engage the tube of the finned tube element and provide additional support when flexible PEX tubing is used.

Abstract: A cabin for a work vehicle, comprising: a ceiling portion; an air conditioner provided to the work vehicle; an air distribution duct provided to the ceiling portion for communicating conditioned air from the air conditioner to the cabin; an air guide projecting into the air distribution duct at an intermediate portion of the duct and forming an inlet opening in a lateral face of a projecting portion of the air guide; and an outlet portion extending to outside the duct and having an opening for introducing the conditioned air from the inlet opening into the cabin. The air guide is pivotable between a use condition and a non-use condition where the inlet opening is oriented differently from an orientation of the inlet opening when the air guide is in the use condition.

Abstract: A kit for forming an air filtering assembly from a portable box fan assembly having a parallelepiped housing with square open sides through which an electric motor driven fan in the housing propels air, and a filter assembly including a parallelepiped frame with opposite sides with through openings generally corresponding in size to the open sides of the housing of the box fan assembly and a sheet of air filtering material within the filter assembly frame between its sides. The kit includes (1) a plurality of clips or hooks; (2) a lengths of adhesive for adhering the clips or hooks to outer surfaces of side portions of the housing for the box fan assembly; and (3) a resiliently elastic cord adapted to extend through passageways in the clips or hooks and between the clips or hooks around the side of the filter assembly opposite the box fan assembly to retain the filter assembly along one of the sides of the housing of the box fan assembly.