| Patent Number |
Title Of Patent |
Date Issued |
| 7467620 |
Evaporative emission control system with new adsorbents |
December 23, 2008 |
| One embodiment of the invention includes an adsorbent canister in a vehicle and an adsorbent having a nearly linear isotherm provided in the adsorbent canister. |
| 7448367 |
Evaporative emission control in battery powered vehicle with gasoline engine powered generator |
November 11, 2008 |
| A plug-in hybrid vehicle is driven by one or more electric motors powered by a battery system with supplemental electric power provided by a gasoline engine powered generator. A canister, connected by a fuel vapor vent passage, is used to admit and temporarily adsorb fuel vapor from a |
| 7305975 |
Evap canister purge prediction for engine fuel and air control |
December 11, 2007 |
| In a system and a method for purging a vapor storage canister having adsorbed fuel vapor (or hydrocarbon vapor) by drawing air through the storage canister the storage canister being coupled with an engine having a system for controlling the amount of fuel provided to the engine, the |
| 7261091 |
Control of induction system hydrocarbon emissions |
August 28, 2007 |
| A method and apparatus for reducing or preventing hydrocarbon emissions from an air induction system of an automotive vehicle directs hydrocarbon from induction system into the crankcase when the vehicle is not in operation. |
| 7225796 |
Control of induction system hydrocarbon emissions |
June 5, 2007 |
| A method and apparatus for reducing or preventing hydrocarbon emissions from an air induction system of an automotive vehicle during diurnal periods opens the fuel line to ambient fuel tank pressure when fuel pressure in the fuel line decreases due to cooling of the fuel. |
| 7220386 |
On-board fuel properties measurement for engine management |
May 22, 2007 |
| A narrow test chamber has at least one heater immersed with its major faces parallel to the fuel surface, part way up the chamber. Heater resistance increases non-linearly as a critical temperature is reached. When the heater is energized, fuel begins to evaporate. Heater temperature |
| 7114492 |
Method and system of purging evaporative emission control canister using heated purge air |
October 3, 2006 |
| Method and system of purging evaporative emission control canister using heated purge air comprises a scrubber containing an activated carbon fiber material or carbon monolith selected to adsorb butane and/or pentane isomer vapors in low concentrations in air passing through the scru |
| 7059306 |
Method and system of evaporative emission control for hybrid vehicle using activated carbon fibe |
June 13, 2006 |
| An evaporative emission control system for a hybrid vehicle comprises a scrubber containing an activated carbon fiber material selected to adsorb butane and/or pentane isomer vapors in low concentrations in air passing through the scrubber and apparatus for resistive heating of the activ |
| 7021296 |
Method and system of evaporative emission control using activated carbon fibers |
April 4, 2006 |
| An evaporative emission control system for a vehicle comprises a scrubber containing an activated carbon fiber material selected to adsorb butane and/or pentane isomer vapors in low concentrations in air passing through the scrubber and to desorb the adsorbed butane and/or pentane isomer |
| 6659087 |
Detection of EVAP purge hydrocarbon concentration |
December 9, 2003 |
| In a system and a method for purging a vapor storage canister having adsorbed fuel vapor (or hydrocarbon vapor) by drawing air through the storage canister the storage canister being coupled with an engine having a system for controlling the amount of fuel provided to the engine, the |
| 5560347 |
Conductive foam vapor sensing |
October 1, 1996 |
| An apparatus for use in diagnosing an evaporative emission canister collection and purge system. An EVAP system of a vehicle is diagnosed through the use of a mechanism wherein a change in conductivity occurs in response to a change in concentration of fuel vapor in the variably cond |
