Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 7197869 | Secondary air supplying structure of internal combustion engine In a secondary air supplying structure of an internal combustion engine, extending portions protruding upward are arranged in the number corresponding to the number of cylinders. Extending portions are each provided with a secondary air distribution path. To a surfa... | 04/03/2007 |
| 7175164 | Method and apparatus for an oval carbonator A method and corresponding apparatus for an oval carbonator employ an oblong housing to provide an improved gas/water interaction area within the confines of the carbonator. The increased cross sectional area provides a larger water surface area, whereby an increase... | 02/13/2007 |
| 6523342 | Method and system for the catalytic aftertreatment of the exhaust gas of an internal-combustion engine The present invention relates to a method and a corresponding system for catalytic aftertreatment of the exhaust gas of an internal-combustion engine. Two spatially separate catalyst devices are provided in the exhaust gas system. The first of these catal... | 02/25/2003 |
| 6516613 | Exhaust manifold device An exhaust manifold device is provided to allow air to enter an exhaust manifold during normal operation or an engine to prevent exhaust gases being sucked into the cylinders via exhaust valves. Air can be supplied, via valves (18 and 21) to the exhaust m... | 02/11/2003 |
| 6311483 | Apparatus for feeding secondary air to exhaust gas in engine To provide an apparatus for feeding secondary air to exhaust gas in an engine. The apparatus includes a cylinder head having an exhaust port for discharging exhaust gas from a combustion chamber and a secondary air feed passage for feeding secondary air t... | 11/06/2001 |
| 5814283 | Exhaust purifier of internal combustion engine An exhaust purifier of an internal combustion engine supplies secondary air into an exhaust pipe without cooling nor inactivating an electrically heated catalyst (EHC) that is active. The exhaust purifier includes the EHC 3 disposed in the exhaust pipe 2,... | 09/29/1998 |
| 5771682 | Thermal reactor A thermal reactor for reducing exhaust emissions generated by an engine. The thermal reactor preferably includes an outer housing and an inner core mounted within the outer housing. The inner core defines an expansion chamber which receives exhaust gas fr... | 06/30/1998 |
| 5461857 | Engine exhaust gas purification device An exhaust gas purification device comprising a three way catalyst, an oxidizing catalyst and a NOx absorbent which are arranged in this order in the exhaust passage. A rich air-fuel mixture is burned in the combustion chamber, and the exhaust gas dischar... | 10/31/1995 |
| 5419125 | Exhaust-gas recombustion system An exhaust-gas recombustion system for recombusting exhaust gases coming out of exhaust ports of an internal combustion engine equipped with a catalytic converter, comprises a plurality of branch pipes of an exhaust manifold connected to the exhaust ports... | 05/30/1995 |
| 4916898 | Method for treatment of exhaust gases This specification teaches a method for treatment of exhaust gases which if left untreated can generate, upon full oxidation, temperatures in a range of from about 1600° F. to about 2700° F. over an oxidizing catalyst. The method has the following steps... | 04/17/1990 |
| 4425940 | Pressure control system A pressure control system for use in vehicle emissions control includes an air control valve (12) having a housing (14) defining an inlet (16) communicated to the vehicle air pump and a pair of outlets (18, 20). A primary valve assembly (22) controls comm... | 01/17/1984 |
| 4358927 | Pressure operated proportional air management valve An air management valve in the exhaust emission control system for the engine of an automotive vehicle is operative to selectively control secondary air flow to the exhaust manifold next adjacent to the exhaust ports of the engine, to the center of a dual... | 11/16/1982 |
| 4345432 | Exhaust gas purifying system for internal combustion engine An exhaust gas purifying system for an automobile engine including at least first and second engine cylinder has a shutter valve for interrupting the supply of a combustible air-fuel mixture to the first engine cylinder during a particular engine operatin... | 08/24/1982 |
| 4342194 | Electric air control switching valve An electric air control switching valve for use in controlling the delivery of secondary air from an engine driven air pump selectively, as a function of both engine operation and the operation of its associated emission control system, to either the exha... | 08/03/1982 |
| 4321792 | Device for purifying the exhaust gases of an internal combustion engine This device results in a very precise metering of the amount of air introduced by a first injector between two catalysts of an exhaust line. To achieve this, first regulating means are regulated so as to deliver a carburetted mixture which is richer than ... | 03/30/1982 |
| 4299089 | Secondary air control system in an internal combustion engine This application discloses a secondary air control system in an internal combustion engine. The system comprises: an exhaust gas purifying device mounted on an exhaust pipe; a secondary air control valve which comprises a diaphragm actuated by vacuum pres... | 11/10/1981 |
| 4245466 | Delta electromagnetic control valve An electromagnetic valve has a housing with interior side walls defining a deltoid valve chamber with an inlet port opening thereto. Each of the three side walls defining the sides of the valve chamber has a discharge port extending therefrom. Each side w... | 01/20/1981 |
| 4242866 | By-pass valve An improved by-pass valve (1) for use in an automobile exhaust system (ES) comprises an air inlet (7) connected to an air pump (AP), first and second air outlets (15,23) respectively connected to first and second portions (P1,P2) of a catalytic converter ... | 01/06/1981 |
| 4235207 | Internal combustion engine Apparatus for controlling introduction of gas into a passage of an internal combustion engine employs a first control valve in a gas introduction passageway, a second control valve in an air conduit connecting the intake passage to atmosphere, and a regul... | 11/25/1980 |
| 4231220 | Secondary air control system for an internal combustion engine Disclosed is a double feedback loop type of secondary air control system for an internal combustion engine, in which a valve provided in a secondary air feed passage for regulating a quantity of the secondary air fed into an exhaust passage of the engine ... | 11/04/1980 |
| 4207738 | Exhaust gas purifying system for multi-cylinder internal combustion engine A sufficient amount of secondary air is supplied to the exhaust gases without requiring numerous supply tubes. The supply tubes are connected to the longest branch of the exhaust manifold or the exhaust port passage to which the longest branch is connecte... | 06/17/1980 |
| 4202173 | Secondary air supplying device of an internal combustion engine Disclosed is a secondary air supplying device of an internal combustion engine having an exhaust passage provided with a catalyzer for purifying exhaust gas. The device includes a first air injection port provided in the exhaust passage at the upstream si... | 05/13/1980 |
| 4192141 | Exhaust gas purifying system for engines A system for purifying exhaust gases of engines by first passing the exhaust gases through a 3-way catalyst in a reducing condition, and secondly through an auxiliary catalyst which accelerates at least the oxidizing reaction in an oxidizing condition, wh... | 03/11/1980 |
| 4191014 | Power mode air switching diverter valve In a system for delivering secondary air from an air pump selectively, as a function of engine operation, to either the exhaust manifold at a location closely adjacent to the exhaust ports of the engine, or either to a converter in the exhaust system down... | 03/04/1980 |
| 4183212 | Secondary air control in vehicle exhaust purification system Control of secondary air flow to a reactor during normal operating condition of an engine is provided by relieving a predetermined portion of the secondary air discharged from an air pump to a point intermediate the reactor and a muffler installed downstr... | 01/15/1980 |
| 4178755 | Forced air control valve for exhaust system of internal combustion engine A forced air control valve for an air injection system in an internal combustion engine is shifted during cold engine operation to divert air flow to the exhaust manifold upstream of a catalytic converter bed to supply air to the exhaust gases for further... | 12/18/1979 |
| 4177642 | Diverter valve for exhaust system of internal combustion engine A forced air control valve for an air injection system in an internal combustion engine has a diaphragm operated main valve member responsive to the vacuum from intake manifold to divert air from the exhaust system to atmosphere. A separate shifting or di... | 12/11/1979 |
| 4163543 | Air control valve An air control valve for a vehicle emissions control system has an inlet connected to the output of the vehicle air pump, a first outlet connected to exhaust injection passages in cylinder head, and a second outlet connected downstream into the exhaust ma... | 08/07/1979 |
| 4156346 | Apparatus for controlling secondary air Disclosed is an apparatus for controlling secondary air for purifying exhaust gas discharged from an internal combustion engine. The apparatus comprises a pair of catalytic converters disposed in series within an exhaust system, a secondary air switching ... | 05/29/1979 |
| 4133175 | Internal combustion engine equipped with improved secondary air supply system An internal combustion engine employing a siamesed exhaust port arrangement is equipped with a secondary air supply system which is arranged to induct atmospheric air into the exhaust system of the engine in response to the pressure pulsation in the exhau... | 01/09/1979 |
| 4125997 | Air distribution system for reduction catalyst and oxidation catalyst An internal combustion engine with an exhaust line in which are arranged a reduction catalyst and downstream thereof an oxidation catalyst, whereby during the starting phase of the internal combustion engine, additional air is supplied to the reduction ca... | 11/21/1978 |
| 4081960 | Air flow control valve A control valve for the exhaust emission control system of the engine for an automotive vehicle controls secondary air flow between a region ahead of a reducing converter and a region intermediate the reducing converter and an oxidizing converter of the s... | 04/04/1978 |
| 4070830 | Integral air switching diverter valve In a system for delivering secondary air from an air pump to either the exhaust manifold, preferably, closely adjacent to the exhaust ports, or to a converter in the exhaust system of an internal combustion engine, an integral air switching diverter valve... | 01/31/1978 |
| 4012905 | Exhaust cleaning system for internal combustion engine An exhaust cleaning system for use with an automotive multiple-cylinder internal combustion engine including first and second groups of engine cylinders which are to be alternately fired, comprising a thermal reactor composed of an outer tubular structure... | 03/22/1977 |
| 3983697 | Exhaust gas cleaning system for internal combustion engines Herein disclosed in an exhaust gas cleaning system for an internal combustion engine. The cleaning system comprises a change-over valve having its inlet port communicating with an air pump, its first outlet port communicating with the exhaust system of th... | 10/05/1976 |
| 3982397 | Apparatus for afterburning the exhaust gases of an internal combustion engine to remove pollutants therefrom An apparatus for afterburning the combustible pollutants from the exhaust gases of an internal combustion engine in a reactor, in which secondary air is introduced. Upstream of the reactor, a chamber in the form of a torus is provided, through which the e... | 09/28/1976 |
| 3979905 | Thermal reactor An elongate outer hollow member encloses an elongate inner hollow member to form an annular passage therebetween which communicates with an exhaust gas inlet of the outer hollow member. The inner hollow member has a combustion chamber defined therein, a p... | 09/14/1976 |
| 3971212 | Method of and an apparatus for purifying exhaust gases of an internal combustion engine A method of purifying exhaust gases of an internal combustion engine by a manifold reactor, wherein secondary air is dividedly supplied at first and second stages especially in a cold starting or accelerating condition of the engine, to burn combustible c... | 07/27/1976 |
| 3967929 | Exhaust gas purifying system Air is pumped into the engine exhaust manifold to promote oxidation of unburned remnants in exhaust gas when the temperature in a catalytic converter is below a safe level. The air supply to the exhaust manifold is shut off and air is pumped into the cata... | 07/06/1976 |
| 3948045 | Air control valve An air control valve for directing the flow of air from an internal combustion engine driven pump and including differential pressure actuating means includes a pilot valve responsive to engine induction vacuum level to provide induction vacuum, atmospher... | 04/06/1976 |
