Abstract: A system for removing heat from a plurality of electronic assemblies including a cabinet having brackets for supporting electronic assemblies in a vertical array between a first vertical airflow path and a second vertical air flow path of the cabinet, and a plinth underlying the cabinet and having an input port receiving air from the first vertical airflow path of the cabinet, an output port transmitting air to the second vertical air flow path, a heat exchanger positioned in an air flow path extending between the input and the output ports, and a fan assembly for driving air through the heat exchanger and towards the input port. The system further includes at least one air flow distribution device establishing a predetermined flow rate distribution through electronic assemblies supports by the brackets.

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: A small and compact boiler for providing hot water for indoor heating and domestic hot water and method of operation are provided. The boiler includes a three way valve configured to circulate boiler water through a heating circuit when indoor heat is required, and bypass the heating circuit and circulate the boiler water through the heat exchanger to enable production of domestic hot water.

Abstract: An extended engine off passenger climate control system utilizes an advanced temperature control module in combination with modifications to the conventional heating/ventilation/air conditioning (HVAC) system to provide occupants in the passenger cabin of a hybrid electric motor vehicle with adequate heat or air conditioning for up to two minutes after the gasoline engine is turned off. A two stage orifice between the condenser and the evaporator of the air conditioning system slows the equilibration of the pressures on the high pressure side and low pressure side of the air conditioning system when the air conditioner compressor is turned off, allowing the passenger cabin to continue receiving cooling air even when the gasoline engine, and thus the compressor, is off. An auxiliary engine coolant pump circulates heated engine coolant through the heater core when the gasoline engine is turned off, thus providing heat when conditions require passenger cabin heating.

Abstract: A system (1) for ventilating a box designed to receive electrical or electronic equipment, the box having a top wall including a ventilator opening (4), the system comprising a ventilator unit (5) for mounting on said wall (3) of the box in register with the ventilator opening (4), said ventilator unit (5) comprising a screen (7) in the form of a cylindrical wall for extending around said ventilator opening (4), said screen (7) being provided with perforations (8) to allow air to pass towards the ventilator opening (4), said screen (7) being extended, at its end remote from the ventilator opening (4) by a solid bottom wall (9) that extends substantially perpendicularly to the screen (7) and forms a vessel for recovering liquid.

Abstract: An air exhaust system comprises a chamber. The chamber has side walls, a ceiling, an attic and a roof. The ceiling and roof have air flow apertures. Provided next is a duct with upper and lower ends. A turbine fan is provided. The fan is operatively coupled to the upper end of the duct and rotatable about a vertical axis. The fan is further adapted to be self rotated as the air moves from a location in the chamber to a cooler location above the fan. Last provided is a damper. The damper is located above the lower end of the duct. The damper is moveable between closed and open orientations. The closed orientation precludes the flow of air through the duct. The open orientation allows for the flow of air through the duct.

Abstract: Membrane roofs are susceptible to damage in high winds. Wind can lift a membrane roof from a building and cause it to tear or become damaged. The present roof vent prevents liftoff and damage by reducing the air pressure under the membrane during high winds. The present roof vent has two opposed convex domes separated by a gap. Wind blowing across the roof flows between the domes where it accelerates and creates a region of low pressure according to the Venturi effect. The lower dome has an opening at the gap so that the low pressure is applied to the space under the membrane roof. Therefore, when wind blows across the roof, the vent draws air from under the membrane and the membrane is pressed against the roof, preventing liftoff.

Abstract: An air flow monitoring and control system with reduced false alarms includes an alarm sensor for monitoring air flow in a fume hood or the like, set to provide a warning if air flow drops below a predetermined amount. A local controller monitors the alarm, and disables it when the hood is set to reduced air flow, whether by a local timer or by command of a central control system. Optionally, the controller itself can operate a variable speed drive to reduce air flow on a timed basis, and the controller can communicate with facility management through a dialer or the Internet, or can interface with a central control for the facility through a facility bus.

Abstract: A roof ventilation system including a prefabricated ridge vent assembly with sidewalls secured at spacers. The spacers support a top cap spaced above the sidewalls which defines a net free ventilation area. The ventilation area is screened. The ridge vent assembly is maintained by mounting blocks which are secured to the ridge vent by connectors such as 2?×4? lumber sections. The system may also utilize eave vent assemblies having a screened ventilation area. The eave vent assembly has a lip to support a trim piece such as a fascia board.

Abstract: A plastic chimney cap is molded in one-piece from either a thermoset or a thermoplastic resin. The chimney cap has a wall extending continuously around a closed-circuit. The wall interior surface defines an interior space. A plurality of vent holes through the wall communicates with the interior space to vent combustion gases. A roof is attached to the upper edge of the wall. A flange is disposed outside the lower edge of the wall and has a perimeter extending completely around the wall. A shoulder connects the flange with the wall. Thickened reinforced regions with threaded holes and mounting screws are spaced apart around the flange perimeter for fastening the chimney cap to the flue. The interior surfaces can be coated with a metallized coating for heat resistance.

Abstract: A heat accumulator for vehicle use, attached to a vehicle, has a double tank structure composed of an outer tank and an inner tank, a space formed between the outer tank and the inner tank being maintained as a vacuum, the outer tank and the inner tank each have an opening on a bottom face, the opening of the outer tank and that of the inner tank are joined to each other at the entire peripheries of the openings, preventing means for preventing fatigue failure from starting at the joining portion being provided at a portion extending from the opening to at least a side of the outer tank.

Abstract: A vent provides a route for gas flow through a building envelope. The vent comprises a substantially hollow cover member having a cover member surface which defines a vent passageway. The vent may comprise a substantially hollow adapter member. The adapter member is coupleable to the cover member at its exterior end and to a conduit at its interior end to provide fluid communication between the vent passageway and the conduit. The vent may comprise a screen which extends across the vent passageway. The screen has a deformable bend and a plurality of surfaces which secure the screen to the cover member without using separate fasteners. The vent may comprise a damper member with an exterior surface having a profile that conforms to the contour of a portion of the cover member surface.

Abstract: A fire damper in an air duct (2) is formed by a flap (12) which in its closed position bears on a flange (6) which extends inward from the duct wall, to form a seal. The flap (12) is biased to the closed position and held open by a cable (24) which is gripped by a releasable mechanism, such as a ball clutch. The release is triggered by a fusible cartridge (34) which extends into the duct (2).

Abstract: Ridge vents and methods of their use are provided. The preferred ridge vent includes an elongated flexible member having a central panel portion, a pair of lateral edges and a pair of transverse ends. A pair of vent openings are disposed proximate to said lateral edges. The central panel portion includes a plurality of support ribs for supporting the central panel portion above the roof. A pair of baffles is disposed laterally from the vent openings and the lateral edges. Each of the baffles is oriented in a first direction relative to the central panel portion for at least a period of time prior to installation and is oriented in a second direction relative to the central panel portion after the installation.

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: A cover plate device for a heat exchanger device, especially for a vehicle heater, includes a receiving zone (14) intended to be arranged on the heat exchanger device and to receive a fluid stream leaving the heat exchanger device in a first direction of flow (S1), a mixing zone (22) for mixing the partial fluid streams (F1, F2, F3) leaving the heat exchanger device in different areas and entering the receiving zone (14), and at least two delivery zones (24, 26) for delivering the fluid stream leaving the mixing zone (22) from the cover plate device (10).

Abstract: The vehicle heating appliance comprises a fuel supply (12) for supplying a liquid fuel to a combustion device (24) and a remotely controllable valve (46) disposed in the fuel supply (12). In order to provide a vehicle with a heating appliance, with which safety-critical situations are substantially avoided, an overpressure safety device (50) is provided in the fuel supply (12).

Abstract: A heating system for a building comprises a boiler and radiators to which hot water is supplied from the boiler, in which at least some of the return water flow from the radiators, typically at 6° C., circulates through a first heat exchanger to cool the exhausting products of combustion, means is provided to direct a small part of the return water flow through at least one heat exchanger which gives up heat to the building and/or to the boiler heating the water for heating he building, to cool the diverted water to well below the dew point, and means is provided to supply the cooled water to a second heat exchanger through which the already cooled exhaust products of combustion have to pass after leaving the first heat exchanger, to achieve full condensation of the water vapour content of the products of combustion form the boiler.

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: Air duct outlets for use on inclined surfaces within vehicles are provided. An air duct outlet includes a body having a fascia with an opening formed therein. A louver assembly is disposed within the fascia opening and is movable between a first position substantially flush with the fascia and a second position substantially nonflush with the fascia. The louver assembly includes a housing having an inlet and an outlet. A set of louvers are secured within the housing in spaced-apart adjacent relationship and are configured to adjust the direction of air flowing through the housing. An actuator extends from the fascia adjacent the opening and is operably connected with the louver assembly. Movement of the actuator within a first range causes pivotal movement of the louvers, and movement of the actuator within a second range causes pivotal movement of the louver assembly between the first and second positions.