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| Number | Title | Issue Date |
| 7353865 | Method for controlling a valve for an exhaust system An exhaust gas heat exchanger system of a combustion engine has a bypass duct and a heat exchanger duct with a heat exchanger. A valve is controlled by determining when heat is to be transferred from exhaust gas flowing through the exhaust system to the heat exchang... | 04/08/2008 |
| 7316778 | Staged oil filter incorporating pelletized basic conditioner An improved oil conditioning filter, for use with an internal combustion engine, includes a mechanically active filter element and a chemically active filter element having a reactive basic conditioner therein. The reactive basic conditioner is provided to counterac... | 01/08/2008 |
| 7308870 | Coolant distributing means for an internal combustion engine A cooling system for an internal combustion engine in which bubbles are not transferred to the water pump, and thereby the efficiency of the water pump is maintained. The interior of a water outlet mounted on a cylinder head is divided by a partition wall to form a ... | 12/18/2007 |
| 7293300 | Trickle waterfall for spa A waterfall for a portable spa does not take up any seat space by being set into the top rim of the spa. Water from the spa circulation system flows into a closed end of a channel located in the top rim and along the channel to the open end located at the edge of th... | 11/13/2007 |
| 7290630 | Vehicle front end structure In a front end structure of a vehicle, a heat exchanger is arranged at a position lower than a bumper reinforcement member, so a position of an engine hood is lowered. Electric auxiliary devices such as a radar, electronic control units for lights, and an air cleane... | 11/06/2007 |
| 7291264 | Staged oil filter incorporating additive-releasing particles An improved oil conditioning filter, for use with an internal combustion engine, includes a mechanically active filter element and a chemically active filter element containing a beneficial additive therein. The beneficial additive is provided to extend the useful l... | 11/06/2007 |
| 7240723 | Tube bundle heat exchanger comprising tubes with expanded sections A heat exchanger useful for high temperature applications such as EGR cooling and fuel reformer applications comprises a tube bundle made up of a plurality of tubes, each having at least one end expanded to an enlarged polygonal cross-section, and having central por... | 07/10/2007 |
| 7234512 | Heat exchanger with internal baffle and an external bypass for the baffle A shell and tube heat exchanger has at least one baffle to support the tubes within the casing of the heat exchanger, wherein the baffle intersects the inner casing wall along a substantial portion of the arc. The baffle has a bypass through which flows at least a p... | 06/26/2007 |
| 7143820 | Systems for improved heat exchanger A system in which a heat exchanger includes a core, a plurality of fins extending outwardly from the core, and an element disposed within the cavity of the core. The heat exchanger also includes a first cap coupled to the first end of the core, and a second cap coup... | 12/05/2006 |
| 7100356 | Heat recovery apparatus with aerodynamic diffusers A sound attenuating duct unit suitable for connection to an outlet of a gas turbine and an improved heat recovery apparatus for use with such a turbine are disclosed. The former unit includes a duct housing having exterior sides, an air inlet at one end and first an... | 09/05/2006 |
| 7090000 | Heat recovery ventilator A heat recovery ventilator is provided which includes a heat exchanger having discrete inlet and exhaust passageways extending therethrough for providing heat transfer between respective fluids flowing along the inlet and the exhaust passages. The inlet passageway p... | 08/15/2006 |
| 7029248 | Device for venting a pump unit A pump unit for the metered delivery of fuel to internal combustion engines. The pump unit comprises a housing which comprises a longitudinal bore. Located in the longitudinal bore is an overflow valve, via which fuel flows back through a channel into a fuel tank. T... | 04/18/2006 |
| 7028768 | Fluid heat exchange control system A method of controlling a hydronic system is provided. The hydronic system includes a plurality of fluid heat exchange units for feeding a load, and a bypass valve for bypassing the load. The method includes operating at least a first and a second fluid heat exchang... | 04/18/2006 |
| 7017656 | Heat exchanger with manifold tubes for stiffening and load bearing An exemplary heat exchanger includes increased stiffness to prevent buckling of a core. In some examples, an exemplary heat exchanger includes a core and a shaft at least partially positioned therein to increase stiffness of the core and located to limit movement of... | 03/28/2006 |
| 6994784 | Liquid filter/heat exchanger unit A liquid filter/heat exchanger unit including a liquid filter and a heat exchanger, the liquid filter having a filter element in a filter housing. To bypass the heat exchanger, there is a bypass connecting the heat exchanger inlet directly to the unfiltered side of ... | 02/07/2006 |
| 6942027 | Exhaust-gas heat recovery appliance An exhaust-gas heat recovery appliance having a heat-exchanger line and a bypass line and a heat exchanger being arranged in the region of the heat-exchanger line. At least one valve device, for the purpose of influencing the mass flow of exhaust gas, is provided in... | 09/13/2005 |
| 6919050 | Method and arrangement for supplying a waste heat exchanger with exhaust gas from a gas turbine A method and arrangement for supplying a waste heat exchanger with exhaust gas from a gas turbine are provided. The exhaust gas is guided through a diverter having a pivotable butterfly valve. When the valve is opened for initial entry of gas into the exchanger, the... | 07/19/2005 |
| 6907958 | Cooling an axle using series flow A work vehicle includes a frame and an axle assembly coupled to the frame. The axle assembly includes a first axle shaft and a first axle housing, with the first axle shaft disposed substantially within the first axle housing; a first wheel coupled to the first axle... | 06/21/2005 |
| 6905792 | Cooling system and cooling process of fuel cell The present invention provides a cooling system of fuel cell, which solves the gas biting noise problem by trapping bubble in a coolant, gives protection to a stack (MEA) and the membrane of a humidifier by regulating the coolant pressure of fuel cell and improves t... | 06/14/2005 |
| 6793012 | Heat exchanger An improved heat exchanger for an automotive vehicle, comprising at least one end tank; and at least two heat exchangers including a plurality of spaced apart extruded metal tubes with fins between the spaced tubes. The heat exchangers are disposed so that their res... | 09/21/2004 |
| 6422310 | Constant temperature coolant circulating apparatus A check valve 27 for preventing backflow of a coolant 5 in outside pipes 14a and 14b into a tank 10 when operation is stopped, a cubical expansion relief valve 28 for suppressing increase of pressure of the coolant in the outside pipes 14a and 14b, and a ... | 07/23/2002 |
| 6253837 | By-pass values for heat exchanger A by-pass valve and a heat exchanger employing same is disclosed where the by-pass valve makes a short circuit from the heat exchanger inlet to the heat exchanger outlet to disable the heat exchanger under certain temperature conditions. The by-pass valve... | 07/03/2001 |
| 5992515 | Transmission fluid cooler-bypass unit for a transmission fluid cooling system A transmission fluid cooling system includes a cooler-bypass unit having a banjo bolt relief valve. The banjo bolt relief valve includes a head portion and a body portion. A relief valve is incorporated into the body portion. A valve seat is formed betwee... | 11/30/1999 |
| 5954126 | Disk cooler Known designs of disk coolers for motor vehicles have flow guides intended to achieve optimum through flow in the hollow chambers formed in the disk coolers. It has been found that the through flow is nevertheless not optimal. Accordingly, it is proposed,... | 09/21/1999 |
| 5901786 | Axial fan sandwich cooling module incorporating airflow by-pass features A cooling module for an automotive vehicle is disclosed. The module includes a pair of bypass doors for directing a flow of air around either of the condenser or radiator in the module depending upon the demands for engine cooling, air conditioning, and a... | 05/11/1999 |
| 5588485 | Plate-type heat exchanger, for use especially as an oil cooler A plate-type heat exchanger, for effecting heat transfer between a first fluid and a second fluid, comprises a casing having an inlet pipe and an outlet pipe for the second fluid, and a stack of plates disposed in alternating pairs within the casing aroun... | 12/31/1996 |
| 5544699 | Oil cooler with a self-fastening, self-orienting pressure relief valve A simple, reliable bypass valve construction (50) is provided for use in conjunction with a donut oil cooler (16) having an aluminum multi-piece housing (28). The bypass valve construction (50) is easily accessible and readily replaceable so as to lend it... | 08/13/1996 |
| 5415221 | Auto switching swimming pool/spa heater system An auto switching swimming pool/spa heater system, to be utilized with a pool and a spa, including a pool pump, a spa pump, and a single heater unit, the heater unit adapted to receive water flow from the pool pump and spa pump into an internal pool/spa f... | 05/16/1995 |
| 5242011 | Heat exchanger with pressure responsive bypass A heat exchanger oil cooler with a bypass valve arrangement for relieving the pressure of the fluid flowing through the heat exchanger tube. The bypass valve arrangement is threadedly connected to the inner tube of a coaxial tube heat exchanger.... | 09/07/1993 |
| 5137079 | Closed circuit cooling system A cooling fluid is circulated around a closed circuit including a heat source, for example by a pump. The system includes a heat exchanger for removing heat from the fluid. Valve means are provided which are operated by changes in volume of the cooling fl... | 08/11/1992 |
| 5044169 | Control device for use in an automative air conditioning system An automotive air conditioning system includes a compressor with a variable displacement mechanism, a condenser, a decompression device and an evaporator serially arranged to form a closed refrigerant circulation path. A conduit connects an outer side of ... | 09/03/1991 |
| 5024263 | Method and apparatus for the control of air flows and pressures in air-conditioning The invention relates to a method and apparatus for controlling the fresh-air, input-air, exhaust-air, waste-air and return-air flows, as well as the air pressure in the input-air duct and the air pressure in the exhaust-air duct, in an air-conditioning s... | 06/18/1991 |
| 4995892 | Process and apparatus for controlling the thermal environment of glass fiber forming The subject matter of this invention relates to an improved method for controlling an industrial glass fiber-forming process. More particularly, it involves a method for controlling the thermal environment of several fiber glass bushing assemblies by the ... | 02/26/1991 |
| 4991643 | Heat exchanger with internal bypass valve A heat exchanger with an internal bypass valve wherein the open end of a bypass tube mounted within a heat exchanger tube forms a valve seat for the bypass valve. A valve head mounted on a valve rod is spring loaded against the valve seat in the preferred... | 02/12/1991 |
| 4753284 | Cooling system for electrical machine A hydraulic circuit branch of a cooling system in thermal contact with the stator winding of a hydraulic power generator is provided with a feed tube divided into two separate input tube sections. The downstream ends of the input tube sections are connect... | 06/28/1988 |
| 4742866 | Heat exchanger A cooler for engine lubricant oil is formed by a stack of heat exchanger modules each defining therein a first space for engine cooling water. A second space is defined between each adjacent pair of modules. The first spaces in respective modules are comm... | 05/10/1988 |
| 4593749 | Process for increasing the heat flow density of heat exchangers working with at least one high-velocity gaseous medium, and a heat exchanger apparatus for undertaking the process A method and apparatus are disclosed for increasing the heat flow density of heat exchangers having at least one gaseous fluid flowing therethrough at a high velocity. In one form of the method, which may be used in motor vehicles, the energy for the acce... | 06/10/1986 |
| 4566530 | Pressure operated shuttle valve A valve assembly in which a longitudinally shiftable shuttle or spool valve is positioned by varying the fluid pressure in a pressure chamber at one end thereof. Solenoid valves open and close in a pulsed response to a changing fluid condition, the flow o... | 01/28/1986 |
| 4386734 | Device for operation of a fluid circuit Disclosed is a fluid circuit, comprising a fluid outlet; a primary fluid flow line having a first section coupled with the fluid inlet and a second section coupled with the fluid outlet; an on-off type control valve and a heat exchanger located in the pri... | 06/07/1983 |
| 4367785 | Liquid circulation method and apparatus Method and apparatus for providing a controlled pressure liquid circulation system comprising a circulation conduit through which a liquid can be circulated and recirculated to accomplish a desired function, such as heating and/or cooling of a work statio... | 01/11/1983 |
