"Transmission of documents via telephone wires is possible in principle, but the apparatus required is so expensive that it will never become a practical proposition."
Dennis Gabor, British physicist
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7987665 | Exhaust evacuation apparatus An apparatus for evacuating exhaust from an exhaust pipe of a vehicle having an external turbine and an internal turbine connected to the external turbine such that when the external turbine rotates the internal turbine rotates. ... | 08/02/2011 |
| 7793493 | Turbocharged internal combustion/steam hybrid engine An engine (FIG. 1-1) comprising of multiple cylinders designated (2-5) combustion cylinders and (2-6) for heat recovery steam cylinders, each cylinder having a piston connected to a common crankshaft. The combustion cylinder... | 09/14/2010 |
| 7690195 | Dilution and dispersion device for the exhaust and/or cooling gases of a vehicle's engine The invention relates to a dilution and dispersion device for the exhaust and/or cooling gases of a vehicle's engine, that incorporates blades and a hub. The hub of said device incorporates means intended to reduce the loss in the gaseous flow rate generated by said... | 04/06/2010 |
| 7207172 | Method for ventilating a working machine, and such a working machine A working machine includes an engine compartment, an engine hood, an internal combustion engine arranged in the engine compartment and an exhaust system, which extends from the engine out of the engine compartment via the engine hood. The exhaust system is provided ... | 04/24/2007 |
| 7107765 | System for improving motor vehicle performance A system for improving motor vehicle performance includes an air intake heat exchanger placed in-line with the air intake of the motor vehicle. The air intake heat exchanger is coupled to a source of pressurized media for selective application of the pressurized med... | 09/19/2006 |
| 7089731 | Rotating motorcycle exhaust pipe A an improvement in a two wheel motor vehicle having an internal combustion motor and a wheel drive mechanism, wherein the motor has an exhaust system connected thereto, includes a) an exhaust system having a first exhaust pipe and a second exhaust pipe with the fir... | 08/15/2006 |
| 7086224 | Rotating motor vehicle tail pipe A motor vehicle having at least three wheels, an internal combustion motor and a wheel drive mechanism, wherein the motor has an exhaust system connected thereto, includes a) an exhaust system having a first exhaust pipe and a second exhaust pipe with the first exha... | 08/08/2006 |
| 7043912 | Apparatus for extracting exhaust heat from waste heat sources while preventing backflow and corrosion In a waste heat recovery system wherein a heat exchanger derives heat from an engine exhaust, a venturi is fluidly connected to an engine exhaust port so as to thereby increase the flow rate and reduce the pressure in a manifold which is fluidly connected between th... | 05/16/2006 |
| 6502392 | Induction cooled exhaust filtration system An exhaust filtration system for filtering exhaust gases produced by an internal combustion engine may comprise a fan having an intake side and a discharge side and an air inlet operatively associated with the intake side of the fan. A filter having an in... | 01/07/2003 |
| 6189318 | Internal combustion engines An internal combustion engine is provided with a vacuum pump (17) to remove burnt gases form the engine cylinders during an exhaust stroke. The vacuum applied by the pump (17) is sufficient to remove the gases during an exhaust stroke and also apply a for... | 02/20/2001 |
| 6062178 | Method of operating uni-flow two-cycle engine during reduced load conditions A method of operating a two-cycle internal combustion engine under low load conditions. A throttle is placed at the intake air system to reduce air intake into the engine cylinders. A pump is placed in the exhaust system, such that it creates reduced pres... | 05/16/2000 |
| 5941069 | Exhaust apparatus An exhaust apparatus for a combustion engine having a combustion chamber and an exhaust pipe for conveying exhaust gas in an exhaust stream from the combustion chamber is disclosed, wherein the exhaust apparatus includes a fan member disposed downstream o... | 08/24/1999 |
| 5904042 | Diesel exhaust conditioning system A diesel exhaust conditioning system removes harmful gaseous and particulate pollutants from the exhaust of a diesel engine, and also lowers the temperature of the emitted exhaust and of the shroud surrounding the pollution control components of the devic... | 05/18/1999 |
| 5896744 | Compulsory discharging device for exhaust of vehicle The present invention relates to a compulsory discharging device for exhaust of vehicle of the type in which a driving motor which has a propeller is mounted at the end portion of the exhaust pipe such that the exhaust within said exhaust pipe can be comp... | 04/27/1999 |
| 5867984 | Exhaust gas extraction system for an internal combustion engine A method for potentiating the performance of an internal combustion engine. The method includes the steps of providing an exhaust extraction booster at a piston chamber of an internal combustion engine for evacuating exhaust product from the piston chambe... | 02/09/1999 |
| 5542249 | Exhaust apparatus An exhaust apparatus for a combustion engine having a combustion chamber and an exhaust pipe for conveying exhaust gas in an exhaust stream from the combustion chamber wherein the exhaust apparatus includes a fan member disposed within the exhaust pipe an... | 08/06/1996 |
| 5542250 | Method and apparatus for actuating a direct source exhaust gas capture system A method and apparatus for actuating a direct source exhaust gas capture system for capturing and exhausting exhaust from a vehicle tailpipe which automatically starts when the ignition system of the vehicle is actuated prior to the engine starting, and w... | 08/06/1996 |
| 5456064 | Method and apparatus for producing an inert gas A method and apparatus for producing an inert gas is described. Firstly, capture the exhaust from a gas fired internal combustion engine located on the site of an intended application. Secondly, pass the exhaust stream through at least one catalytic conve... | 10/10/1995 |
| 5412940 | High pressure exhaust cleaning system A method for dehydrating and cleaning high pressure gases withdrawn from within the combustion chamber of an internal combustion engine including maintaining the gases at a high pressure and cooling the gases to cause condensation of water, entraining par... | 05/09/1995 |
| 5412944 | Severe service extractor valve A method for cooling the parts of an extractor valve assembly to workable levels by cooling a portion of the produced gases and mixing it with the newly produced gases to lower the average temperature of the gases produced which is seen by the valving mea... | 05/09/1995 |
| 5282361 | Device for facilitating exhaust action of an internal combustion engine The present invention relates to a device for facilitating exhaust action of an internal combustion engine being used as a power-transmitting source of a vehicle, using a depression phenomenon resulted from induction and acceleration of air resistance due... | 02/01/1994 |
| 5012641 | Emissions control system for use in conjunction with an ic engine primary emissions control system An apparatus which is adapted to be retrofit onto a tailpipe of an internal combustion engine co-operates with the primary emissions control system of the engine to improve the overall performance of such control system. The apparatus includes a housing h... | 05/07/1991 |
| 4949539 | Muffler with a purifying system for car or motorcycle This invention relates to a muffler having a purifying system for separating solid contents and eliminating poisonous gases such as carbon monoxide by means of an electrolysis apparatus which continuously provides oxygen separated from water to react with... | 08/21/1990 |
| 4912927 | Engine exhaust control system and method An exhaust control system for assisting in discharging exhaust gases to control exhaust noise and increase engine performance by reducing back-pressure and lower piston exhaust resistance, and rapidly lowering the temperature of exhaust gases in internal ... | 04/03/1990 |
| 4610141 | Compound engine with plural stage intercooled exhaust pump A compound internal combustion engine includes a piston type internal combustion engine drive coupled with a gas turbine, the piston engine exhaust gases driving the turbine whose exhaust preheats the piston engine air intake and then enters the suction i... | 09/09/1986 |
| 4475340 | Internal combustion engine having an exhaust gas turbine and fuel preheating using exhaust gas heat and method of operation thereof A power system is provided which consists of an internal combustion engine, a compressor to compress the air used in operating the engine, a pair of heat exchangers wherein the fuel for operating the engine is preheated by exhaust gases wherein the fuel i... | 10/09/1984 |
| 4439983 | Inlet turbine powered exhaust extractor for internal combustion engines A four-cycle internal combustion engine is provided with apparatus comprising a turbine in the inlet air flow path and an extracting compressor in the exhaust gas path. Where the internal combustion engine is an automobile engine and is operating under no... | 04/03/1984 |
| 4054418 | Catalytic abatement system An apparatus for the thermal-catalytic abatement of hydrocarbons, carbon monoxide, nitrogen oxides and particulates from effluent gas streams. The apparatus has a preheat section wherein the effluent is heated to 400°-1000° F by hot combustion gases. Th... | 10/18/1977 |
| 4032285 | Method and apparatus for the automatic control of the air ratio of a combustion process A method for automatically controlling the air ratio of a combustion process by adjustment of the fuel-air mixture as function of the air number, the air number of the exhaust gas being measured with a sensor which is particularly sensitive at an air numb... | 06/28/1977 |
| 4012907 | Exhaust apparatus A device for securement to or incorporating into the exhaust assembly of an internal combustion engine to improve efficiency thereof is disclosed. The device comprises a generally tubular housing open at both ends to enable passage of exhaust gases and a ... | 03/22/1977 |
| 3990242 | Motor vehicle drive system A motor vehicle drive system in which an internal combustion engine is operatively connected to a gas turbine installation. A compressor is interposed between the engine and the turbine installation so as to receive directly the exhaust gases from the pis... | 11/09/1976 |
| 3968649 | Exhaust emission control system An emission control system for an internal combustion engine cools the exhaust gases sufficiently to condense a substantial portion of the pollutants as a separable liquid or solid phase. The engine exhaust gases are initially cooled and then compressed, ... | 07/13/1976 |