Abstract: An exhaust processor is provided for filtering particulate matter from a combustion product. The exhaust processor includes a partition situated inside a housing to form a filtering region and a bypass region in an upstream portion of the housing. A substrate is mounted in the filtering region for solid particle filtration. A muffler is situated in a downstream portion of the housing spaced apart from the partition so that the entire spacial volume of the muffler can be utilized by combustion product passing through either the filtering region or the bypass region.

Abstract: A muffler assembly includes a pair of outer shells mating to define a muffler chamber and a pair of internal tuning plates mating to define inlet and outlet tubes in the muffler chamber. Drop-in baffles are used to divide the muffler chamber into an expansion chamber, a pair of exhaust turnaround chambers, and a pair of resonance chambers. The two outer shells and first tuning plates are mechanically locked together at the perimeter of the muffler assembly and the second tuning plate is piggybacked onto the first tuning plate to reduce the number of material layers included in the mechanical lock. Each of the outer shells includes one or more ribs and channels for stiffening the outer shell to reduce vibration noise and to conduct condensate developing in the muffler chamber either to a hotter region where it will vaporize or to a drain.

Abstract: A tubular sock made of fibrous material is placed over a louver patch formed in an exhaust flow tube mounted in a muffler to attenuate engine exhaust noise. A slip tube is provided for preventing the tubular sock from becoming entangled on the louver patch as it is being placed on the exhaust flow tube.

Abstract: A heater assembly is supported by an electrical receptacle mounted in a wall. A cover supports an enclosed heater and a fan forces air into the cover to be discharged into a space. A mount directly supports the cover when mated with the receptacle. To maintain the assembly in position, a contact or leg is situated below the mount and receptacle.

Abstract: An exhaust manifold includes an inner shell providing a first flange having an interior and exterior surface and an outer shell cooperating with the inner shell to define an interior region therebetween. The outer shell provides a second flange having an exterior surface which is situated in spaced-apart relation to the interior surface of the first flange to form a flange-receiving space therebetween. The flange-receiving space provides an access opening into the interior region intermediate the inner and outer shells. At least one baffle is situated in the interior region. The at least one baffle includes a mounting flange nested between the first and second flanges and positioned in the flange-receiving space to extend through the access opening so that a distal portion of the mounting flange is exposed to exterior surroundings outside of the interior region defined by the inner and outer shells. Configuration of the at least one baffle is disclosed for use in single and dual exhaust manifolds.

Abstract: An exhaust processor assembly is provided for processing a flow of combustion product supplied by a source. The processor assembly has a housing including an inlet coupled to the source for admitting combustion product into the housing. The inlet includes first and second diverging nozzles interconnected by a transition section of uniform cross-section. A diverter is positioned in the inlet for interrupting the flow of combustion product traveling through the inlet toward the substrate. The specially configured inlet and the diverter cooperate to substantially uniformly distribute the flow of combustion product introduced into the housing across the inlet face of the substrate. Such uniform distribution provides a distributed exhaust flow designed to load the substrate substantially evenly to enhance combustion product treatment efficiency of the substrate means.

Abstract: An exhaust manifold for attachment to an engine having a plurality of exhaust ports is provided. The exhaust manifold includes an exhaust conduit that is in fluid communication with selected exhaust ports, with the exhaust conduit being formed to include separate primary and auxiliary outlet openings. The exhaust manifold also includes a tuning tube that is formed to include an inlet opening that is in acoustic communication with the auxiliary outlet opening, and an outlet opening. The exhaust manifold also has a chamber for providing a static volume that is in acoustic communication with the outlet opening of the tuning tube.

Abstract: A liquid separator assembly for separating a liquid from a liquid-entrained vapor is provided. The separator assembly includes a housing having an interior wall that is configured to define a containment chamber. A downstream pipe is provided that is coupled to the housing and is in fluid communication with the containment chamber to discharge vapor from the housing. An upstream pipe is provided that is coupled to the housing and is in fluid communication with the containment chamber to introduce the liquid-entrained vapor into the housing. The upstream pipe is formed to include an expansion mechanism in the containment chamber for expanding and cooling the liquid-entrained vapor discharged in the containment chamber to induce condensation of the liquid entrained in the vapor onto the interior wall of the housing. A liquid return conduit is provided for conducting condensed liquid collecting in the containment chamber to a point of use.

Abstract: A radiant heater assembly is provided that includes heating element for generating heat radiantly to warm a space to be heated. The heater assembly includes a sensor for sensing temperature within the radiant heater assembly. An overheat control unit is provided for automatically disabling the heater elements upon exposure of the sensor to temperature in excess of a predetermined threshold temperature. Alert indicators are provided for indicating disablement of the heater elements upon actuation of the overheat control unit. A tip-over switch is provided for activating the alert indicators independent of actuation of the overheat control unit in response to predetermined tilting movement of the radiant heater assembly relative to a normal upright position.

Abstract: A tuning system receives signals from a radio frequency source and supplies an intermediate frequency signal to a signal detector under the control of a microprocessor. The microprocessor reads a channel selector and produces a control voltage which is used to tune the system to the selected channel. The intermediate frequency signal is connected to the microprocessor and a direct measure of the actual IF signal frequency is used by the processor to continuously adjust the tuner to compensate for drifting of the RF signal. In a preferred embodiment, the IF signal increments a counter in the microprocessor for a predetermined period of time to provide a direct measure of the actual IF signal frequency.

Abstract: A tuned exhaust manifold is provided for attachment to an engine having a plurality of exhaust ports. The manifold includes an inner and outer shell joined together to form an exhaust chamber and an inwardly-opening flange-receiving space at a split line defined by the union of the inner and outer shells. Captive tuning baffles are dropped in place and positioned in the exhaust chamber to isolate individual engine exhaust ports for engine performance tuning. Each baffle includes a flange trapped in the space between the inner and outer shells to retain the baffle in a predetermined position within the exhaust chamber. The baffles are arranged in a predetermined pattern within the exhaust manifold to define separate passgeways extending from exhaust inlet openings formed in the inner shell toward one or more exhaust openings of the manifold. Tuning is accomplished by configuring and placing the baffles to control the flow of exhaust from each engine exhaust port through the exhaust manifold.

Abstract: A manifold exhaust processor includes a pair of substrates mounted within the interior of an exhaust manifold housing and aligned in end-to-end relation to permit each substrate to treat the combustion product exhausted from a different group of engine cylinders and to equalize the temperatures of the outer skin and centerline portion of the substrate to reduce thermal stress. A common outlet is provided to exhaust the treated combustion product. The first substrate is mounted in a first chamber of the manifold housing in close proximity to a first inlet to cause combustion product to be introduced into the first chamber in a direction toward a side wall of the first substrate to promote tangential flow about the side wall and around the substrate.

Abstract: An exhaust processor having a particulate trap regeneration system is provided. The exhaust processor includes a housing having an inlet for introducing a combustion product containing a contaminate or other particulate matter from an engine and an outlet for exhausting filtered or otherwise treated combustion product from the housing. At least one substrate is situated in the housing from the inlet. The exhaust processor further includes a trap burner for burning particulate matter collected in the substrate. The trap burner is operable to periodically oxidize the trapped particulate matter and thereby regenerate the substrate. The exhaust processor still further includes a bypass system for regulating the flow rate of combustion product introduced into the housing during regeneration of the substrate. The exhaust processor permits combustion product to be introduced into the housing for treatment in the substrate while regeneration of that substrate is actually occurring.

Abstract: An "in-line" exhaust processor includes a housing having an inlet for introducing a combustion product from an engine and an outlet for exhausting filtered or otherwise treated combustion product from the housing. A first substrate is situated in a forward or upstream position within the housing to filter combustion product introduced into the housing through the inlet. A second substrate is situated in an adjacent rearward or downstream position within the housing to filter combustion product from at least two sources in the manner explained below. Each substrate includes a cellular structure having opposite inlet and outlet ends and a longitudinal axis. The housing includes a first clam shell portion and a complementary second clam shell portion joined to the first clam shell portion to surround and hold the substrate pair in series.

Abstract: An evaporative cooler is disclosed which incorporates a media having a plurality of generally plate-like structures. The plates include a plurality of fins having slot-like depressions dimensioned thin enough to exhibit capillarity, yet thick enough to exhibit good heat transfer characteristics when filled with chilled water. The capillary slots are arranged to effect distribution of the water over substantially the entire surface of the plates forming the media.

Abstract: A combined direct and indirect media is disclosed which is formed from a plurality of plate-like structures. The plates are generally sheet-like elements having an indirect portion and a direct portion. The indirect portion includes a first indirect section, a second indirect section, and a hinge disposed between the first and second indirect sections. The first indirect section can be folded about the hinge to place the first and second sections in an opposed relation. The direct and indirect portions are configured to form the direct and indirect evaporative cooling media when a plurality of plates are arranged in an ordered array.

Abstract: A catalytic converter includes a longitudinally disposed body portion having first and second shell halves and an interior in which first and second catalytic substrates are disposed. A divider is positioned between the first and second catalytic substrates and is selectively attachable to accommodate substrates of various relative sizes. The divider includes first and second divider halves, with each divider half having a pair of flanges which extend perimetrically and substantially completely along the interior wall of one shell half. The portion of the interior wall of each shell to which the divider flanges are attached has a greater longitudinal extent than the longitudinal extent of the pair of divider flanges to allow selective placement of the dividers in the converter body portion. The divider flanges are disposed substantially parallel to the interior wall and are coupled thereto. The divider flanges include a portion which is recessed inwardly from the interior wall.

Abstract: An "in-line" exhaust processor includes a housing having an inlet for introducing a combustion product from an engine and an outlet for exhausting filtered or otherwise treated combustion product from the housing. A first substrate is situated in a forward or upstream position within the housing to filter combustion product introduced into the housing through the inlet. A second substrate is situated in an adjacent rearward or downstream position within the housing to filter combustion product from at least two sources in the manner explained below. Each substrate includes a cellular structure having opposite inlet and outlet ends and a longitudinal axis. The housing includes a first clam shell portion and a complementary second clam shell portion joined to the first clam shell portion to surround and hold the substrate pair in series.