Abrégé

Some embodiments described herein relate to a method of operating a compression ignition engine. The method of operating the compression ignition engine includes opening an intake valve to draw a volume of air into a combustion chamber, closing an intake valve, and moving a piston from a bottom-dead-center (BDC) position to a top-dead-center (TDC) position in the combustion chamber at a compression ratio of at least about 15:1. The method further includes injecting a volume of fuel into the combustion chamber at an engine crank angle between about 330 degrees and about 365 degrees during a first time period. The fuel has a cetane number less than about 40. The method further includes combusting substantially all of the volume of fuel. In some embodiments, a delay between injecting the volume of fuel into the combustion chamber and initiation of combustion is less than about 2 ms.

Classes IPC  ?

• F02D 41/30 - Commande de l'injection de combustible
• F02B 1/14 - Mode de fonctionnement
• F02B 43/10 - Moteurs ou ensembles fonctionnels caractérisés par l'utilisation d'autres gaz spécifiques, p. ex. l'acétylène, le gaz oxhydrique
• F02B 43/12 - Mode de fonctionnement
• F02D 41/00 - Commande électrique de l'alimentation en mélange combustible ou en ses constituants
• F02D 41/38 - Commande de l'injection de combustible du type à haute pression
• F02D 41/40 - Commande de l'injection de combustible du type à haute pression avec des moyens pour commander la synchronisation ou la durée de l'injection
• F02M 27/02 - Appareils pour traiter l'air comburant, le combustible ou le mélange air-combustible par catalyseurs, moyens électriques, magnétisme, rayonnement, ondes sonores ou moyens analogues par catalyseurs

Abrégé

Embodiments described herein relate to systems and methods of operating internal combustion (IC) engines by combusting various fuel chemistries therein. Specifically, engines described herein can operate a wide range of fuel chemistries with varying molecular formulas. The chemical compositions of the fuels described herein make them more difficult to ignite than long chain hydrocarbons (i.e., fuels that include 6 or more carbon atoms in a molecule). In some embodiments, engines described herein can combust fuels that have the chemical properties of alcohols. In some embodiments, engines described herein can combust fuels that include hydroxide groups. Examples of such fuels include methanol and/or ethanol. In some embodiments, engines described herein can combust natural gas. These fuel chemistries are difficult to ignite, particularly at low temperatures and during initial engine startup. Systems and methods described herein address these ignition difficulties, particularly in diesel engine architectures.

Classes IPC  ?

• F02B 9/04 - Mode de fonctionnement
• F02B 3/08 - Mode de fonctionnement
• F02D 13/02 - Réglage de la puissance du moteur par variation des caractéristiques de fonctionnement de la soupape d'admission ou de la soupape d'échappement, p. ex. réglage de la durée d'admission ou d'échappement pendant la marche du moteur
• F02D 19/08 - Commande des moteurs caractérisés par l'emploi de combustible non liquide, de combustibles multiples ou de substances non combustibles ajoutées au mélange carburant particulière aux moteurs fonctionnant avec des combustibles multiples, p. ex. alternativement du fuel léger et du fuel lourd, et autres que les moteurs indifférents au combustible utilisé utilisant simultanément des combustibles multiples
• F02D 41/00 - Commande électrique de l'alimentation en mélange combustible ou en ses constituants
• F02D 41/06 - Dispositions de circuits pour produire des signaux de commande introduisant des corrections pour des conditions particulières de fonctionnement pour le démarrage ou le réchauffage du moteur
• F02D 41/30 - Commande de l'injection de combustible
• F02D 41/40 - Commande de l'injection de combustible du type à haute pression avec des moyens pour commander la synchronisation ou la durée de l'injection
• F02M 26/13 - Aménagement ou disposition des passages RGE, p. ex. par rapport à des pièces spécifiques du moteur ou pour l’incorporation d’accessoires
• F02P 5/145 - Avance ou retard à l'allumage par étincelle électriqueLeur commande automatiquement, en fonction des conditions de travail du moteur, du véhicule ou des conditions atmosphériques utilisant des moyens électriques
• F02P 19/04 - Allumage par incandescence, p. ex. au démarrage des moteurs à combustion interneCombinaison d'allumage par incandescence et par étincelle non électrique, p. ex. chauffage de points incandescents par brûleurs
• F02P 21/00 - Utilisation directe de flammes ou de brûleurs pour l'allumage
• F02P 23/00 - Autres systèmes d'allumage

Abrégé

Some embodiments described herein relate to a method of operating a compression ignition (CI) engine. The CI engine can include a combustion chamber. The method of operating the CI engine includes receiving a volume of intake charge in the combustion chamber, compressing the intake charge, injecting a volume of fuel into the combustion chamber, the fuel having a cetane number less than about 40, and combusting substantially all of the volume of fuel. A delay between injecting the volume of fuel into the combustion chamber and initiation of combustion is less than about 2 ms. The CI engine includes at least a two-stroke engine, an opposed-piston engine, a two-stroke opposed piston engine, a five-stroke engine, a six-stroke engine, a free-piston engine, a free piston engine linear, a rotary engine, and/or a Wankel rotary engine.

Classes IPC  ?

• F02B 3/12 - Mode de fonctionnement
• F02B 51/04 - Autres modes de fonctionnement des moteurs comportant un traitement préliminaire de l'air comburant, du combustible ou du mélange d'air et de combustible ou comportant addition de substances à cet air, à ce combustible ou à ce mélange comportant de l'électricité ou du magnétisme

Produits et services

Leasing of vehicles

Abrégé

Embodiments described herein relate to systems and methods of operating internal combustion (IC) engines by combusting various fuel chemistries therein. Specifically, engines described herein can operate a wide range of fuel chemistries with varying molecular formulas. The chemical compositions of the fuels described herein make them more difficult to ignite than long chain hydrocarbons (i.e., fuels that include 6 or more carbon atoms in a molecule). In some embodiments, engines described herein can combust fuels that have the chemical properties of alcohols. In some embodiments, engines described herein can combust fuels that include hydroxide groups. Examples of such fuels include methanol and/or ethanol. In some embodiments, engines described herein can combust natural gas. These fuel chemistries are difficult to ignite, particularly at low temperatures and during initial engine startup. Systems and methods described herein address these ignition difficulties, particularly in diesel engine architectures.

Classes IPC  ?

• F02B 3/08 - Mode de fonctionnement
• F02D 19/08 - Commande des moteurs caractérisés par l'emploi de combustible non liquide, de combustibles multiples ou de substances non combustibles ajoutées au mélange carburant particulière aux moteurs fonctionnant avec des combustibles multiples, p. ex. alternativement du fuel léger et du fuel lourd, et autres que les moteurs indifférents au combustible utilisé utilisant simultanément des combustibles multiples
• F02D 41/30 - Commande de l'injection de combustible

Abrégé

Embodiments described herein relate to systems and methods of cylinder deactivation in compression-ignition engines. An engine described herein can include N cylinders, with N being an integer of at least 2, with each cylinder including an inner surface, a piston disposed and configured to move in each cylinder of the N cylinders, an intake port, an exhaust port, and a fuel injector. The piston and the inner surface define a combustion chamber. A method of operating the compression ignition engine includes injecting a fuel into each of the combustion chambers, combusting substantially all of the fuel in the compression ignition engine, monitoring engine load of the compression ignition engine, and deactivating a cylinder of the N cylinders upon a decrease in load to less than (N−1)/N×FL, wherein FL is a full load at a given engine speed.

Classes IPC  ?

• F02D 41/00 - Commande électrique de l'alimentation en mélange combustible ou en ses constituants
• F02D 13/06 - Mise hors circuit des cylindres
• F02D 41/14 - Dispositions de circuits pour produire des signaux de commande introduisant des corrections à boucle fermée

Produits et services

Engines for non-land vehicles; engines for machines; electricity generators. Engines for land vehicles; engines for locomotives; engines for trucks; engines for agricultural tractors; trucks; agricultural tractors; locomotives. Land vehicle engine conversion services, namely, customizing equipment to allow engines to use non-fossil fuels; small engine conversion services, namely, customizing equipment to allow engines to use non-fossil fuels.

Abrégé

Some embodiments described herein relate to a method of operating a compression ignition engine. The method of operating the compression ignition engine includes opening an intake valve to draw a volume of air into a combustion chamber, closing an intake valve, and moving a piston from a bottom-dead-center (BDC) position to a top-dead-center (TDC) position in the combustion chamber at a compression ratio of at least about 15:1. The method further includes injecting a volume of fuel into the combustion chamber at an engine crank angle between about 330 degrees and about 365 degrees during a first time period. The fuel has a cetane number less than about 40. The method further includes combusting substantially all of the volume of fuel. In some embodiments, a delay between injecting the volume of fuel into the combustion chamber and initiation of combustion is less than about 2 ms.

Classes IPC  ?

• F02D 41/30 - Commande de l'injection de combustible
• F02B 1/14 - Mode de fonctionnement
• F02B 43/12 - Mode de fonctionnement
• F02D 41/00 - Commande électrique de l'alimentation en mélange combustible ou en ses constituants
• F02D 41/40 - Commande de l'injection de combustible du type à haute pression avec des moyens pour commander la synchronisation ou la durée de l'injection
• F02M 27/02 - Appareils pour traiter l'air comburant, le combustible ou le mélange air-combustible par catalyseurs, moyens électriques, magnétisme, rayonnement, ondes sonores ou moyens analogues par catalyseurs
• F02B 43/10 - Moteurs ou ensembles fonctionnels caractérisés par l'utilisation d'autres gaz spécifiques, p. ex. l'acétylène, le gaz oxhydrique
• F02D 41/38 - Commande de l'injection de combustible du type à haute pression

Abrégé

Some embodiments described herein relate to a method of operating a compression ignition engine. The method of operating the compression ignition engine includes opening an intake valve to draw a volume of air into a combustion chamber, closing an intake valve, and moving a piston from a bottom-dead-center (BDC) position to a top-dead-center (TDC) position in the combustion chamber at a compression ratio of at least about 15:1. The method further includes injecting a volume of fuel into the combustion chamber at an engine crank angle between about 330 degrees and about 365 degrees during a first time period. The fuel has a cetane number less than about 40. The method further includes combusting substantially all of the volume of fuel. In some embodiments, a delay between injecting the volume of fuel into the combustion chamber and initiation of combustion is less than about 2 ms.

Classes IPC  ?

• F02D 41/30 - Commande de l'injection de combustible
• F02B 1/14 - Mode de fonctionnement
• F02B 43/12 - Mode de fonctionnement
• F02D 41/00 - Commande électrique de l'alimentation en mélange combustible ou en ses constituants
• F02D 41/40 - Commande de l'injection de combustible du type à haute pression avec des moyens pour commander la synchronisation ou la durée de l'injection
• F02M 27/02 - Appareils pour traiter l'air comburant, le combustible ou le mélange air-combustible par catalyseurs, moyens électriques, magnétisme, rayonnement, ondes sonores ou moyens analogues par catalyseurs
• F02B 43/10 - Moteurs ou ensembles fonctionnels caractérisés par l'utilisation d'autres gaz spécifiques, p. ex. l'acétylène, le gaz oxhydrique
• F02D 41/38 - Commande de l'injection de combustible du type à haute pression

Produits et services

Land vehicle engine conversion services, namely, customizing equipment to allow engines to use non-fossil fuels; small engine conversion services, namely, customizing equipment to allow engines to use non-fossil fuels

Produits et services

Engines for land vehicles; engines for locomotives; engines for trucks; engines for agricultural tractors; trucks; agricultural tractors; locomotives

Produits et services

Engines for non-land vehicles; engines for machines; electricity generators

Abrégé

Embodiments disclosed herein relate generally to systems and methods of operating internal combustion (IC) engines, and more specifically to systems and methods of starting compression ignition (CI) engines when the surrounding environment is significantly colder than the normal operating temperature of the engine (i.e., “cold-starting”). In some embodiments, the CI engine can include an ignition-assist device. In some embodiments, a method of operating a CI engine during cold-start can include opening an intake valve to draw a volume of air into the combustion chamber, moving a piston from a bottom-dead-center position to a top-dead-center position in a combustion chamber at a compression ratio of between about 15 and about 25, injecting a volume of fuel, the fuel having a cetane number of less than about 30, closing the intake valve, and combusting substantially all of the volume of fuel.

Classes IPC  ?

• F02B 9/04 - Mode de fonctionnement
• F02M 26/13 - Aménagement ou disposition des passages RGE, p. ex. par rapport à des pièces spécifiques du moteur ou pour l’incorporation d’accessoires
• F02D 13/02 - Réglage de la puissance du moteur par variation des caractéristiques de fonctionnement de la soupape d'admission ou de la soupape d'échappement, p. ex. réglage de la durée d'admission ou d'échappement pendant la marche du moteur
• F02D 41/00 - Commande électrique de l'alimentation en mélange combustible ou en ses constituants
• F02D 41/06 - Dispositions de circuits pour produire des signaux de commande introduisant des corrections pour des conditions particulières de fonctionnement pour le démarrage ou le réchauffage du moteur
• F02D 41/40 - Commande de l'injection de combustible du type à haute pression avec des moyens pour commander la synchronisation ou la durée de l'injection
• F02P 5/145 - Avance ou retard à l'allumage par étincelle électriqueLeur commande automatiquement, en fonction des conditions de travail du moteur, du véhicule ou des conditions atmosphériques utilisant des moyens électriques
• F02P 19/04 - Allumage par incandescence, p. ex. au démarrage des moteurs à combustion interneCombinaison d'allumage par incandescence et par étincelle non électrique, p. ex. chauffage de points incandescents par brûleurs
• F02P 21/00 - Utilisation directe de flammes ou de brûleurs pour l'allumage
• F02P 23/00 - Autres systèmes d'allumage

Produits et services

Engines for non-land vehicles; engines for machines; electricity generators

Produits et services

Engines for land vehicles; engines for locomotives; engines for trucks; engines for agricultural tractors; land vehicles; trucks; agricultural tractors; locomotives

Produits et services

Land vehicle engine conversion services, namely, customizing equipment to allow engines to use non-fossil fuels; small engine conversion services, namely, customizing equipment to allow engines to use non-fossil fuels

Abrégé

Some embodiments described herein relate to a method of operating a compression ignition engine. The method of operating the compression ignition engine includes opening an intake valve to draw a volume of air into a combustion chamber, closing an intake valve, and moving a piston from a bottom-dead-center (BDC) position to a top-dead-center (TDC) position in the combustion chamber at a compression ratio of at least about 15:1. The method further includes injecting a volume of fuel into the combustion chamber at an engine crank angle between about 330 degrees and about 365 degrees during a first time period. The fuel has a cetane number less than about 40. The method further includes combusting substantially all of the volume of fuel. In some embodiments, a delay between injecting the volume of fuel into the combustion chamber and initiation of combustion is less than about 2 ms.

Classes IPC  ?

• F02D 41/30 - Commande de l'injection de combustible
• F02B 1/14 - Mode de fonctionnement
• F02B 43/12 - Mode de fonctionnement
• F02D 41/00 - Commande électrique de l'alimentation en mélange combustible ou en ses constituants
• F02D 41/40 - Commande de l'injection de combustible du type à haute pression avec des moyens pour commander la synchronisation ou la durée de l'injection
• F02M 27/02 - Appareils pour traiter l'air comburant, le combustible ou le mélange air-combustible par catalyseurs, moyens électriques, magnétisme, rayonnement, ondes sonores ou moyens analogues par catalyseurs
• F02B 43/10 - Moteurs ou ensembles fonctionnels caractérisés par l'utilisation d'autres gaz spécifiques, p. ex. l'acétylène, le gaz oxhydrique
• F02D 41/38 - Commande de l'injection de combustible du type à haute pression

Produits et services

Engines for non-land vehicles (term considered too vague by the International Bureau - Rule 13 (2) (b) of the Regulations); engines for machines; non-land vehicles (term considered too vague by the International Bureau - Rule 13 (2) (b) of the Regulations); machines. Engines for land vehicles; engines for locomotives; engines for trucks; engines for agricultural tractors; land vehicles; trucks; agricultural tractors; locomotives. Land vehicle engine conversion services, namely, customizing equipment to allow engines to use non-fossil fuels; small engine conversion services, namely, customizing equipment to allow engines to use non-fossil fuels.

Produits et services

Engines for non-land vehicles; engines for machines; non-land vehicles; machines. Engines for land vehicles; engines for locomotives; engines for trucks; engines for agricultural tractors; land vehicles; trucks; agricultural tractors; locomotives. Land vehicle engine conversion services, namely, customizing equipment to allow engines to use non-fossil fuels; small engine conversion services, namely, customizing equipment to allow engines to use non-fossil fuels.

Produits et services

Engines for non-land vehicles; engines for machines; non-land vehicles; machines. Engines for land vehicles; engines for locomotives; engines for trucks; engines for agricultural tractors; land vehicles; trucks; agricultural tractors; locomotives. Land vehicle engine conversion services, namely, customizing equipment to allow engines to use non-fossil fuels; small engine conversion services, namely, customizing equipment to allow engines to use non-fossil fuels.

Abrégé

Embodiments described herein relate to systems and methods of cylinder deactivation in compression-ignition engines. An engine described herein can include N cylinders, with N being an integer of at least 2, with each cylinder including an inner surface, a piston disposed and configured to move in each cylinder of the N cylinders, an intake port, an exhaust port, and a fuel injector. The piston and the inner surface define a combustion chamber. A method of operating the compression ignition engine includes injecting a fuel into each of the combustion chambers, combusting substantially all of the fuel in the compression ignition engine, monitoring engine load of the compression ignition engine, and deactivating a cylinder of the N cylinders upon a decrease in load to less than (N−1)/N×FL, wherein FL is a full load at a given engine speed.

Classes IPC  ?

• F02D 41/14 - Dispositions de circuits pour produire des signaux de commande introduisant des corrections à boucle fermée
• F02D 13/06 - Mise hors circuit des cylindres
• F02D 41/00 - Commande électrique de l'alimentation en mélange combustible ou en ses constituants

Abrégé

Some embodiments described herein relate to a method of operating a compression ignition engine. The method of operating the compression ignition engine includes opening an intake valve to draw a volume of air into a combustion chamber, closing an intake valve, and moving a piston from a bottom-dead-center (BDC) position to a top-dead-center (TDC) position in the combustion chamber at a compression ratio of at least about 15:1. The method further includes injecting a volume of fuel into the combustion chamber at an engine crank angle between about 330 degrees and about 365 degrees during a first time period. The fuel has a cetane number less than about 40. The method further includes combusting substantially all of the volume of fuel. In some embodiments, a delay between injecting the volume of fuel into the combustion chamber and initiation of combustion is less than about 2 ms.

Classes IPC  ?

• F02D 41/30 - Commande de l'injection de combustible
• F02D 41/00 - Commande électrique de l'alimentation en mélange combustible ou en ses constituants
• F02D 41/40 - Commande de l'injection de combustible du type à haute pression avec des moyens pour commander la synchronisation ou la durée de l'injection

Produits et services

Engines for machines Engines for land vehicles; engines for locomotives; engines for trucks; engines for agricultural tractors Land vehicle engine conversion services, namely, customizing equipment to allow engines to use non-fossil fuels; small engine conversion services, namely, customizing equipment to allow engines to use non-fossil fuels