| Patents for F02M 23 - Apparatus for adding secondary air to fuel-air mixture (1,389) |
|---|
| 06/12/1997 | DE19645905A1 Method of controlling fuel-air mixture composition for IC engine with 3-way catalyst |
| 05/22/1997 | DE19542940A1 Fuel feed system for combustion engine |
| 05/21/1997 | CN2254488Y Secondary air supply device for automotive vehicle |
| 05/21/1997 | CN2254487Y Secondary air-supply device for automotive vehicle |
| 04/17/1997 | WO1997013969A1 Elongated fuel-air bypass for internal combustion engine |
| 04/10/1997 | DE19536833A1 Fuel supply device for internal combustion engine |
| 04/08/1997 | US5617824 Air intake equipment for internal combustion engine |
| 03/04/1997 | US5606956 Elongated fuel-air bypass for internal combustion engine |
| 02/20/1997 | WO1996034194A3 Automatic valve for the inlet manifold of an internal combustion engine |
| 02/04/1997 | US5598816 Carburetor metering system alone and in combination with a wick or spark plug |
| 10/31/1996 | WO1996034194A2 Automatic valve for the inlet manifold of an internal combustion engine |
| 10/31/1996 | CA2218729A1 Automatic valve for the inlet manifold of an internal combustion engine |
| 10/22/1996 | US5566655 Method for controlling the flow of fluid through an intake pipe of an internal combustion engine |
| 07/11/1996 | WO1996021097A1 Engine management system |
| 06/12/1996 | CN2228986Y Energy economizer for car |
| 05/09/1996 | DE4438735A1 Engine efficiency improvement and exhaust emission reduction system |
| 03/26/1996 | US5501194 Fuel injection apparatus |
| 03/12/1996 | US5497746 Two-stage valve for feeding air to injectors of an internal combustion engine |
| 02/20/1996 | US5491977 Engine using compressed air |
| 01/31/1996 | EP0694689A1 Device for supplying extra air with non-return valve |
| 01/30/1996 | US5487372 Malfunctional detecting apparatus for an assist air control system for internal combustion engines |
| 12/20/1995 | CN2215597Y Spray type carburettor |
| 10/11/1995 | EP0676543A1 Two stage valve for air supply of injectors of internal combustion engines |
| 09/12/1995 | US5448974 Engine output control |
| 08/02/1995 | EP0664853A1 Lean burn mixture control system |
| 07/20/1995 | WO1995016124A3 Fuel system |
| 06/27/1995 | US5426934 Engine and emission monitoring and control system utilizing gas sensors |
| 06/15/1995 | WO1995016124A2 Fuel system |
| 06/07/1995 | CN1103537A Engine using compressed air |
| 05/17/1995 | EP0653013A1 Engine using compressed air. |
| 04/25/1995 | US5409169 Air-assist fuel injection system |
| 04/20/1995 | WO1995010700A1 Lean burn mixture control system |
| 04/11/1995 | US5404717 Method and system for controlling internal combustion engine with air pump |
| 02/28/1995 | US5392746 For an internal combustion engine |
| 01/24/1995 | US5384074 Carburetor metering system and wick |
| 01/17/1995 | US5381771 Lean burn mixture control system |
| 12/21/1994 | CN2185806Y Automatic control energy-saving device for gasoline-engine driven machine |
| 10/11/1994 | US5353776 Method and apparatus for controlling fuel flow to lean burn engines |
| 10/11/1994 | US5353772 Carburetor fuel charge heating apparatus |
| 10/06/1994 | DE4410820A1 Secondary air feed unit for an internal combustion engine and gas heating unit for the former |
| 09/21/1994 | EP0616120A1 Internal combustion engine with lambda control and control valve therefor |
| 09/15/1994 | WO1994020733A1 Engine using compressed air |
| 08/18/1994 | DE4402850A1 System for monitoring and controlling internal combustion engines and their exhaust gas emissions, using gas sensors |
| 07/20/1994 | EP0490953B1 Carburettor metering systems |
| 05/26/1994 | DE4239069A1 Supply of additional air into inlet manifold of IC engine - involves underpressure line opening into intake pipe in area of throttle valve |
| 05/25/1994 | EP0598650A1 Apparatus for delivering fuel with vented injectors |
| 05/24/1994 | US5313926 Supplemental emission control device for a gasoline engine |
| 04/28/1994 | WO1994009431A1 System for adding gaseous materials to combustion system |
| 04/05/1994 | US5299548 Carburetor with lagging bypass air valve |
| 03/23/1994 | CN2159458Y Oil saver for gasoline engine |
| 02/03/1994 | WO1994002733A1 Lean burn mixture control system |
| 01/27/1994 | DE4308570A1 Turbulence air valve for IC-engine - uses underpressure in intake tube to press closure against valve seat |
| 01/26/1994 | CN2154355Y Other air-feed device for engine |
| 01/05/1994 | CN1023420C Self-regulated wave vibrating type carburettor |
| 01/04/1994 | CA1325750C Apparatus for supplying air-fuel mixture in internal combustion engine |
| 12/14/1993 | US5269283 Emission control device for fuel injection and carbureted engines |
| 11/16/1993 | US5261368 Apparatus and method for controlling an internal combustion engine |
| 10/12/1993 | US5251601 Lean burn mixture control system |
| 10/12/1993 | US5251597 Engine air supply systems |
| 09/21/1993 | US5245976 Air induction control device |
| 09/01/1993 | EP0558320A1 Method and system for controlling internal combustion engine with air pump |
| 06/30/1993 | EP0548160A1 Additional air supply device for combustion engine |
| 06/09/1993 | CN2135656Y Airflow rotary fuel-saving device |
| 06/01/1993 | US5215063 Motor vehicle air-fuel ratio automatic control device |
| 05/27/1993 | WO1993008384A3 Air-assist fuel injection system |
| 05/26/1993 | CN2134493Y Automatic air supply board for oil-saving gas purification of gasoline engine |
| 05/25/1993 | US5213076 Apparatus and method for controlling an internal combustion engine |
| 05/22/1993 | CA2078242A1 Fuel agitating device for internal combustion engine |
| 05/13/1993 | WO1993009338A1 Air intake amount increasing device in internal combustion engine |
| 05/11/1993 | US5209209 Device at intake systems for internal combustion engines |
| 05/05/1993 | CN2131994Y Universal fuel-saving carburettor |
| 05/04/1993 | US5207207 Carburetor metering and hot air dilution system |
| 04/29/1993 | WO1993008384A2 Air-assist fuel injection system |
| 01/26/1993 | US5181491 Intake system in multi-cylinder type internal combustion engine |
| 01/13/1993 | EP0523029A2 A device at intake systems for internal combustion engines |
| 01/07/1993 | WO1993000508A1 Air induction control device |
| 12/22/1992 | US5172674 Internal combustion engine |
| 11/17/1992 | US5163412 Pollution control system for older vehicles |
| 10/01/1992 | WO1992016732A1 Method and device for preparation of fuel-air mixture in an internal combustion engine |
| 09/02/1992 | EP0501514A1 Intake system in multi-cylinder type internal combustion engine |
| 08/25/1992 | US5140969 Automatic fuel saver |
| 07/23/1992 | WO1992012340A1 Method and device for atomising a liquid fuel |
| 06/10/1992 | CN2106901U Economizer of gasoline engines |
| 05/19/1992 | US5113837 Air induction control device |
| 05/19/1992 | US5113826 Intake air control system for internal combustion engine |
| 04/29/1992 | CN2103011U Oil-saving apparatus for automobile |
| 04/16/1992 | WO1992006289A1 Venturi device and apparatus incorporating same |
| 03/25/1992 | CN2099849U Oxygen replenishing oil-saving device for car |
| 03/25/1992 | CN2099848U Atomizing oil-saving device |
| 03/15/1992 | WO1992005358A1 Additional air supply device for combustion engine |
| 03/15/1992 | CA2092710A1 Additional air supply device for combustion engine |
| 12/18/1991 | EP0461129A1 Internal combustion engine air supply system |
| 10/30/1991 | CN2087694U Compound oil-saving purification device for internal-combustion engine |
| 09/10/1991 | US5046475 Emission control device for carbureted engines |
| 08/27/1991 | US5043899 Secondary air supply system for internal combustion engines |
| 07/31/1991 | CN1053473A Self-regulated wave vibrating type carburettor |
| 05/16/1991 | DE3937239A1 Auxiliary air feed for IC engine - has underpressure control valve with return shock safety sprung valve |
| 03/09/1991 | WO1991003635A1 Carburettor metering systems |
| 03/09/1991 | CA2066579A1 Carburettor metering systems |
| 03/06/1991 | CN2072599U Carburettor secondary air oil-saving device |