| Patent application number | Description | Published |
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| 20100181052 | Finned Cylindrical Heat Exchanger - A cylindrical heat exchanger for use as a gas cooler in a thermal regenerative machine such as a Stirling engine includes an imperforate middle wall of sufficient strength and thickness to withstand the pressure exerted by the working fluid. The heat exchanger includes an inner corrugated wall located within an axial gas flow passage inside the middle wall, and an outer corrugated wall which defines an axial coolant flow passage along the outer surface of the middle wall. The coolant flow passage preferably contains a corrugated intermediate wall. | 07-22-2010 |
| 20110302910 | Annular Heat Exchanger - An annular heat exchanger for cooling hot gases comprises an inner shell, an intermediate shell and an outer shell. Where the heat exchanger is integrated with a catalytic converter for treatment of hot exhaust gases in a motor vehicle, the inner shell contains a catalyst for treatment of the exhaust gases. Inner and outer gas flow passages are provided between the shells, and a coolant flow passage is provided, either on the outer surface of the outer shell, or inbetween the intermediate and outer shells. The exhaust gases change direction twice as they pass through the heat exchanger, and the annular structure of the heat exchanger provides a large surface area, and a large flow section, relative to volume, and thereby provides effective heat exchange without significantly increasing space requirements. | 12-15-2011 |
| 20120160450 | Fluid Flow Mixing Box With Fluid Flow Control Device - A heat exchanger apparatus includes a housing that defines a flow passage for a first fluid. The housing has a housing fluid inlet and a housing fluid outlet communicating with the flow passage. A first heat exchanger is located within the flow passage of the housing between the housing fluid inlet and the housing fluid outlet. The first heat exchanger has a plurality of channels for transmitting a second fluid through the first heat exchanger. The heat exchanger apparatus also includes a flow diverter in the flow passage, between the housing fluid inlet and the first heat exchanger, for diverting some of the first fluid to a by-pass region of the flow passage that by-passes the first heat exchanger. As well, a flow control device is in communication with the housing fluid inlet and controls a volume and location of the first fluid entering the flow passage. | 06-28-2012 |
| 20130061584 | Exhaust Gas Heat Recovery Device - A device for recovering heat from a hot gas stream comprises a gas diverter valve and a gas/liquid heat exchanger. The diverter valve comprises a valve body; a valve element movable between a bypass position and a heat exchange position; and a gas inlet and a gas outlet formed in the valve body. The heat exchanger comprises a heat exchanger core comprised of a stack of core plates arranged parallel to the exhaust gas flow path, and the heat exchanger is located outside the exhaust gas flow path and may be spaced therefrom so as to avoid unwanted heat transfer with the valve in bypass mode. The heat exchanger may include a bottom-most gas flow path adjacent to the bottom plate, and may include a mounting plate which is mechanically secured to the valve body, with a thermally insulating gasket provided between the mounting plate and the valve body. | 03-14-2013 |
| 20130213017 | Annular Heat Exchanger - An annular heat exchanger for cooling hot gases comprises an inner shell, an intermediate shell and an outer shell. Where the heat exchanger is integrated with a catalytic converter for treatment of hot exhaust gases in a motor vehicle, the inner shell contains a catalyst for treatment of the exhaust gases. Inner and outer gas flow passages are provided between the shells, and a coolant flow passage is provided, either on the outer surface of the outer shell, or inbetween the intermediate and outer shells. The exhaust gases change direction twice as they pass through the heat exchanger, and the annular structure of the heat exchanger provides a large surface area, and a large flow section, relative to volume, and thereby provides effective heat exchange without significantly increasing space requirements. | 08-22-2013 |
| 20140116672 | Stacked-Plate Heat Exchanger With Single Plate Design - A plate-type heat exchanger comprising a plurality of spaced-apart stacked plate pairs, the plate pairs each comprised of first and second plates. The first and second plates each having an elongated central, planar portion surrounded by peripheral edge portions, the peripheral edge portions of the first and second plates being sealably joined together to form a first set of fluid passages in the heat exchanger. The first and second plates are provided with boss potions at respective ends of the plates, one of the boss portions being an elongated boss portion having a first position and a second position for the location of a fluid opening. The first and second heat exchanger plates are identical in structure and can be used to form various heat exchangers using the single plate design. | 05-01-2014 |
| 20140238641 | Heat exchanger apparatus with manifold cooling - Disclosed is a heat exchanger having heat exchange plates and a base plate that can help to mitigate the thermal stresses encountered by a heat exchanger, particularly, around the peripheral edge portions of the heat exchanger and the base of heat exchanger. This is achieved by providing a channel of coolant fluid near the peripheral edge portions which is in between the peripheral edge portions and the manifold permitting flow of hot fluid. In addition, the base plate of the heat exchanger is protected from the hot fluid flowing through the manifold by providing deflectors that shield the base plate from the hot fluid. | 08-28-2014 |
| Patent application number | Description | Published |
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| 20100212290 | REDUCTANT DOSING SYSTEM HAVING ANTI-AERATION DEVICE - A reductant dosing system for a machine having an engine and an exhaust system is disclosed. The reductant dosing system has a tank configured to hold a reductant, a dosing arrangement, and a supply passage connecting the tank to the dosing arrangement. The reductant dosing system also has a purging arrangement configured to direct purge fluid to at least one of the dosing arrangement and the supply passage, and a valve configured to allow reductant to pass from the tank to the supply passage and to inhibit purge fluid from entering the tank. | 08-26-2010 |
| 20120000181 | EXHAUST SYSTEM HAVING AN AFTERTREATMENT MODULE - An aftertreatment module for use with an engine is disclosed. The aftertreatment module may have a first chamber with an inlet, and at least one catalyst substrate disposed in the first chamber in a flow path through the inlet and having a flow direction from an inlet face to an outlet face in general alignment with the flow path. The aftertreatment module may also have a second chamber with at least one outlet in general alignment with the flow direction through the inlet. The aftertreatment module may further have at least one noise attenuation passage fluidly connecting the first chamber with the second chamber. The at least one noise attenuation passage may be oriented generally orthogonal to the inlet and the at least one outlet and be located between the inlet and the outlet face of the at least one catalyst substrate. | 01-05-2012 |
| 20140174060 | System and Method for Accommodating Aftertreatment Bricks - One or more aftertreatment bricks are axially inserted through an opening in the first end of a tubular sleeve of an aftertreatment system. The aftertreatment brick includes a substrate matrix and a mantle disposed around the substrate matrix. The mantle further includes a lip arranged to extend through the opening of the sleeve. One or more channel pockets are secured proximate to the opening of the sleeve and oriented radially outward with respect to the sleeve axis. To retain the aftertreatment brick in the sleeve, a clamping assembly is used that includes a hook, a fastener, and a capture nut. The capture nut is installed and accommodated in the channel pockets. The hook engages the protruding lip of the aftertreatment brick and the fastener secures the hook to the capture nut received in the channel pocket. | 06-26-2014 |
| 20140175238 | System and Method for Installing Aftertreatment Bricks - An aftertreatment brick can be installed in a brick compartment of an aftertreatment module with a releasable securing assembly. The releasable securing assembly includes a first bracket, a second bracket, and a band clamp. The first bracket is installed in the brick compartment proximate a port. The aftertreatment brick is placed on the first bracket adjacent the port and the second bracket is placed about the aftertreatment brick above the first bracket. The band clamp is slid over the first and second brackets and tightened to secure the brackets about the brick. | 06-26-2014 |
