Abstract: An off-ridge roof vent includes a hood open along the sides and front and a rear flange for mounting the hood to a roof. A pair of side walls each includes lower flanges to mount to a flat roof and upper bent tabs that fit under the hood to provide a tight fit between the walls and hood. A front baffle wall extends upwardly from a flange and opening and extends under the hood and terminates in a channel to mount one edge of a screen and another channel is formed in a subtending wall from the hood to mount the other edge of the screen to prevent the entry of debris into the vented roof space. All of the flanges are connected and are in the same plane so that the vent may be attached to a flat roof.

Abstract: An integrated fixture for transferring heat from a higher-temperature loop to a lower-temperature loop (e.g., in radiant heating, from a heating unit loop to a radiant loop). The fixture provides a heat exchanger for transferring heat from the higher-temperature loop to the lower-temperature loop. The fixture also includes a casting, in which are formed higher-temperature supply and return ports, lower-temperature supply and return ports, a higher-temperature pump volute, and a lower-temperature pump volute. Liquid from the higher-temperature loop enters the integrated fixture through the higher-temperature supply port, passes through one side of the heat exchanger, transferring heat to liquid circulating through the other side of the heat exchanger in the lower-temperature loop, and leaves the integrated fixture through the higher-temperature return port.

Abstract: An air intake for a vehicle that facilitates air transfer from an ambient environment outside the vehicle to a vehicle space is provided. The air intake inhibits liquid transfer from the ambient environment to the vehicle space. The air intake includes a housing having an inlet for receiving air from the ambient environment, and an outlet in communication with the inlet. The outlet is disposed in an upper portion of the housing. A blocking member is disposed within the housing adjacent the inlet for preventing upward fluid flow from the inlet directly to the outlet, thereby inhibiting liquid flow through the outlet and into the vehicle space. A portion of the air intake housing is configured for attachment to a vehicle window, and the inlet is configured to be disposed along one edge of the window.

Abstract: An air vent is provided that is capable of delivering a distributed divergent air flow with a predominant direction of flow that can be changed within a wide range of mutually perpendicular directions. In one embodiment, the air vent has an outlet grid that is generally ball shaped and that is rotatably mounted at an end of an air duct for rotation about its center. Each of the multiple outlet openings of the grid points to a direction that is different from pointing directions of all other outlet openings so that a divergent air flow is obtained. By rotating the ball shaped grid about its center, the predominant direction of air flow can nevertheless be changed in a within a wide range.

Abstract: This invention provides a system and method for cogeneration of building heat and electric power and that efficiently interfaces a warm air heating system with a liquid-cooled electric power generator. The system and method utilizes an electric generator that is rated at near the time-averaged electric power consumption for the building. This generator is operated as the priority source of heat for the building, but normally only when there is a demand for heat in building. In this manner, the generator can run to generate a significant part of the building's electric power but in a manner that is typically supplemented in variable quantities by power from a public power grid. The heat output is directed via a liquid coolant circuit on the generator, as needed, to the warm air heating unit for the building. The warm air heating unit blows return air through a cabinet and out to the supply duct(s). The warm liquid coolant is directed through a primary heat exchanger in the cabinet.

Abstract: The invention concerns a sliding door device (10) comprising at least a mobile sliding door (11) and separating elements (12) for maintaining and guiding the mobile and removable sliding door (11). The latter enables automatic opening and closure of an opening (20) based on a command. Therefor, the edges of the sliding door are at least partly enclosed with a frame part (14), an air curtain (24) being produced in front of the passageway (20) by means of a fan (16). The invention is characterized in that the sliding door comprises on its free vertical sides a frame part (14) provided with a housing wherein is arranged a fan (16). The outlet (17) of said fan leads to a longitudinal opening in the form of a nozzle producing the air curtain (24) and extending over practically the entire length of the vertical side (13) of the door. Additionally an inlet (18) of the fan (16) is provided in the frame part (14).

Abstract: A viscous fluid-type heat generating apparatus comprises a conveying rotor in communication with at least one channel for conveying a tempering fluid through it. The conveying rotor is mounted on a driven shaft. A shearing arrangement provides shearing forces onto viscous liquid situated in a chamber. This chamber is immediately formed within a hollow space of the conveyor rotor.

Abstract: A system for the distribution of air to a row of seats in a passenger compartment of a means of transport, such as for example an aeroplane, train or bus, or in the room of a building, comprises a main duct and a series of outlets. The outlets are without valves for opening and closing, and the flow of the air through the outlets is controlled by control means associated to each outlet that exploit the Coanda effect.

Abstract: A hot water heating system for use in a boat or vehicle which utilises the engine of the vehicle or boat, an AC power source or a fuel powered heater to heat a living area and to heat potable water. Each of the power sources can be utilised independently or in combination depending on the location and operation of the vehicle or boat. A valve is automatically controlled by a thermostat to allow heated fluid to circulate through the living area or to bypass the area. Aquastats are provided to automatically allow potable water to be heated. A display is provided for displaying textual and numerical information in user friendly format relating to the operation of the hot water heating system.

Abstract: A damper actuator for a ventilation damper serves as both a control device for the ventilation damper and a fire and smoke rated device for the ventilation damper. The damper actuator includes a modulating motor controller, a two-point motor controller, and a thermal switch or switch like device that is operative to switch control of the motor from the modulating motor controller used during normal operation, to the two-point motor controller during a fire and smoke condition. The damper actuator provides an automatic and permanent disabling (by-passing) of the modulating motor controller functions the first time a pre-determined temperature level (switch point) is reached via the thermal switch or switch like device. Once the modulating motor controller is disabled, the actuator no longer supports the advanced motor control functions (i.e. the modulating control).

Abstract: An air supply orifice arrangement (1) particularly suitable for a motor vehicle includes at least one air supply orifice (4) which is arranged on a support (3), wherein the air supply orifice (4) is capable of being displaced with respect to the support (3) in the event of a crash.

Abstract: A layover heating system (89) for a locomotive is provided. The layover heating system (89) is adapted to be used in conjunction with a conventional locomotive cooling systems. The layover heating system (89) includes a water tank and pump (90). A layover heater (92) heats fluid in the layover heating system (89). An orifice (98) is provided to control the flow Of fluid in the layover system (89) to generally balance the pressure on either side of the locomotive radiator. In this manner, fluid flow through the radiator is minimized, minimizing heat loss at the radiator. A variable orifice may be used that is adjustable in response to a signal generated from pressure sensors on each side of the radiator and processed by a central processing unit.

Abstract: An apparatus for directing air away from a register grill includes a shroud covering that is applied over the grill and a flexible conduit that is attached over an opening provided in the shroud. The flexible conduit is used to discharge air away from the grill where desired. A plurality of flexible conduits may be used with each grill. If desired, a detachable cover is used to obstruct air flow out of a discharge end of each flexible conduit. According to a modification, a section of rigid conduit is used in place of the flexible conduit. An intermediate section that is adapted to flex is attached to the shroud and disposed intermediate the grill and the rigid conduit to allow directional placement of the rigid conduit, where desired. The shroud is attached to the grill by screw fasteners, adhesive, magnetic means, or otherwise, as desired or it may be formed as an integral part of a replacement type of grill.

Abstract: The space heating system with fuel cells (11) has a connection to a public electrical network (50). In this system a fuel (B) can be supplied to the fuel cells in gaseous form through a main gas valve (200) for the production of thermal and electrical energy. The main gas valve has a control which, on an interruption of the current supplied, results in an automatic operating shutdown. The possibilities exist for the system to feed the electrical energy at least partly into the network and to deliver the thermal energy to a heating circuit which is operable with electrical energy from the network. An electrical inverter (4), with which direct current of the fuel cells can be converted into alternating current, can be operated in two operating states, on the one hand, for a feed into the public network, and, on the other hand, for a feed into the island network of the system.

Abstract: A domestic combined heat and power system comprising a Stirling engine (1) and water heater in the form of a supplementary burner (17). The exhaust gas from the Stirling engine is used to preheat combustible gas entering the Stirling engine and subsequently used to heat the water. The water heater (15) has a helical water duct (41) towards the periphery of a housing (39). Separate parts of this duct are heated, in series, by the exhaust gas from the Stirling engine and the supplementary burner (17) firing radially outwardly through the helical duct.

Abstract: An HVAC duct sealing system has an air duct wall, a sealing surface, such as an HVAC case, against which the air duct wall is biased, and a seal member interposed between the duct wall and the sealing surface. The seal member is interposed between the air duct wall and the sealing surface and is molded directly onto the air duct wall using a two-shot or double shot method of forming. The seal can be rubber or any flexible, pliable material capable of creating a seal with a surface. The seal has a seal base that is attached to and surrounds an end part and two sides of the air duct wall. The seal has a flexible tip portion extending from the seal base that is biased against and bends against the sealing surface in accordance with an amount of pressing force to create a seal. The flexible tip bends between 0 and 100 degrees from its pre-installation position.

Abstract: For the purposes of increasing pilot visibility and comfort in small planes during winter conditions, this invention provides an auxiliary heating system. Prior to actual flight, that is to say that during start up, warm up, taxi and takeoff, a small aircraft does not intake sufficient outside air to warm the cabin and defrost the windshield. The normal heating system on a small plane depends upon ram air when the plane is flying at normal speeds. This invention consists of a simple replacement part, mainly an electric blower which sucks in air from outside the aircraft and forces it through the muffler shroud and thereafter into the cabin and defroster ducts. The system is operated by a switch located on the control panel. Once the aircraft is in flight, the system may be shut off as there is sufficient ram air to heat the small aircraft.

Abstract: A powder coating system is provided comprising a powder spray booth (2) with a powder recovery system having an overspray intake (18) communicating with the interior of the booth. A diverter plate (26) may be held within the booth (2) to define with the booth floor (10), a duct leading to an overspray intake (18) of the powder recovery system. The diverter plate may include apertures for allowing oversprayed powder to be collected through the plate. The diverter plate may be provided as two or more diverter plates held at different elevation levels within the booth to define a duct which is larger in parts of the duct which are closer to the overspray intake than parts of the duct which are farther from the overspray intake. Alternatively or additionally, the coating system may include an air assist which provides jets of air across a portion of the interior surface of the booth. The surface may be one or more sloped portions (22) of the floor.

Abstract: A cover structure with a vent is provided which includes a cooling fan, and a cover having a vent portion provided with a plurality of air-through holes through which air forced by the cooling fan escapes. The vent portion is formed spaced away from the cooling fan by a distance of about 6-10 mm. The distance of about 6-10 mm between the cooling fan and the cover reduces the fluid flow noise.

Abstract: A plenum and diffuser for use with an HVAC system for distributing air through an opening in a ceiling, the plenum having a large diameter bottom opening by which air is passed through an opening in the ceiling, and having an air inlet opening. A hanger bar extends through the plenum housing over the large diameter opening. A junction box is secured to the hanger bar for supporting a light fixture or ceiling fan. A diffuser is in the form of a planar, circular structure of thin, rigid material having a circumferential outer edge and a central opening dimensioned to accommodate a junction box. The diffuser has a plurality of radially extending fins and a radially extending air slot opening in conjunction with each fin.