Abrégé

A piston assembly is provided with a vaulted cooling chamber defined between the piston head and the piston skirt. The vaulted cooling chamber includes an inner gallery, an outer gallery, and a plurality of channels which connect the inner gallery to the outer gallery. In certain embodiments, the plurality of channels circumferentially extends at least 120 degrees around the longitudinal axis. In other certain embodiments, the piston assembly further includes a plurality of walls which define the plurality of channels, and there are at least four walls. In other certain embodiments, the piston head is coupled to the piston skirt by a plurality of fasteners, and each of the fasteners is located within 45 circumferential degrees of a fastener axis.

Classes IPC  ?

• F02F 3/22 - Pistons comportant des moyens de refroidissement les moyens consistant en un fluide circulant dans ou le long du piston le fluide étant un liquide
• F02F 3/00 - Pistons

Abrégé

An engine is provided with a cylinder liner that extends beyond the surface of the crankcase surrounding the cylinder. When the engine is oriented in an inverted V-block configuration, the extension of the cylinder liner provides a barrier to oil that can pool on the crankcase surface and otherwise enter the interior of the cylinder, absent such a barrier.

Classes IPC  ?

• F02F 1/00 - CylindresCulasses de cylindres
• F02B 75/02 - Moteurs caractérisés par leurs cycles, p. ex. à six temps
• F02B 75/22 - Moteurs polycylindriques avec les cylindres disposés en V, en éventail ou en étoile

Abrégé

An oil tank for an engine is provided with a separator that reduces the amount of entrained air in the oil tank. The separator includes a body with an outer wall, a divider wall, and an outlet. The divider wall is located between the outer wall and at least a first portion of the outlet. The divider wall is offset from a curved portion of the outer wall, which defines a flow channel through which the oil flows towards the outlet. The oil increases speed as travels around the divider wall. This movement keeps the oil with some and/or more entrained air closer to the outer wall. In contrast, the oil with less or no entrained air moves closer to the divider wall and may travel more directly to the outlet.

Classes IPC  ?

• F01M 11/03 - Montage ou raccordement des moyens d'épuration du lubrifiant se rapportant à la "machine" ou machine motriceÉléments constitutifs des moyens d'épuration du lubrifiant
• F16N 39/00 - Dispositions pour conditionner des lubrifiants dans les circuits de lubrification

Abrégé

An air-shut off valve for an engine is provided to reduce the number of engine cycles that occur if an engine starts in reverse. The air shut-off valve includes a shaft centered on and extending along a longitudinal axis and a valve plate centered on a central axis. The valve plate is mounted on the shaft and positioned such that the central axis and the longitudinal axis do not intersect with each other. The valve plate can be actuated automatically (i.e., through air interfacing with the valve plate) or manually (i.e., by a user) between an opened position and a closed position with respect to the air intake tube.

Classes IPC  ?

• F02M 35/10 - Tubulures d'admission de l'airSystèmes d'introduction
• F16K 1/22 - Soupapes ou clapets, c.-à-d. dispositifs obturateurs dont l'élément de fermeture possède au moins une composante du mouvement d'ouverture ou de fermeture perpendiculaire à la surface d'obturation à éléments de fermeture articulés à pivot comportant disque ou volet pivotant dont l'axe de rotation traverse le corps de soupape, p. ex. régulateurs à papillon
• F02M 35/116 - Collecteurs d'admission pour des moteurs dont les cylindres sont disposés en V ou disposés de façon opposée par rapport à l'arbre principal
• F16K 31/10 - Moyens de fonctionnementDispositifs de retour à la position de repos électriquesMoyens de fonctionnementDispositifs de retour à la position de repos magnétiques utilisant un aimant avec mécanisme additionnel entre l'armature et l'élément de fermeture

Abrégé

An oil tank for an engine is provided with a separator that reduces the amount of entrained air in the oil tank. The separator includes a body with an outer wall, a divider wall, and an outlet. The divider wall is located between the outer wall and at least a first portion of the outlet. The divider wall is offset from a curved portion of the outer wall, which defines a flow channel through which the oil flows towards the outlet. The oil increases speed as travels around the divider wall. This movement keeps the oil with some and/or more entrained air closer to the outer wall. In contrast, the oil with less or no entrained air moves closer to the divider wall and may travel more directly to the outlet.

Classes IPC  ?

• F01M 11/03 - Montage ou raccordement des moyens d'épuration du lubrifiant se rapportant à la "machine" ou machine motriceÉléments constitutifs des moyens d'épuration du lubrifiant
• F16N 39/00 - Dispositions pour conditionner des lubrifiants dans les circuits de lubrification

Abrégé

An engine is provided with a cylinder liner that extends beyond the surface of the crankcase surrounding the cylinder. When the engine is oriented in an inverted V-block configuration, the extension of the cylinder liner provides a barrier to oil that can pool on the crankcase surface and otherwise enter the interior of the cylinder, absent such a barrier.

Classes IPC  ?

• F02F 1/00 - CylindresCulasses de cylindres
• F02B 75/02 - Moteurs caractérisés par leurs cycles, p. ex. à six temps
• F02B 75/22 - Moteurs polycylindriques avec les cylindres disposés en V, en éventail ou en étoile

Abrégé

A piston is provided with a gapless ring positioned in a subport position. Specifically, the gapless ring is positioned between the air ports and the crankcase of the engine. The gapless ring includes a rail and an annular ring received within the rail. The ring includes a ring gap and the rail includes a rail gap. When the rail receives the annular ring, the ring gap and rail gap are spaced apart in a circumferential direction such that the gaps do not overlap. In certain embodiments, the rail includes a notch. When the annular ring is received within the notch, the annular ring and rail are biased against rotating with respect to each other. In certain other embodiments, the gapless ring includes an oil scraping surface.

Classes IPC  ?

• F02F 5/00 - Segments de piston, p. ex. associés avec la tête de piston
• F02F 3/00 - Pistons
• F02B 75/02 - Moteurs caractérisés par leurs cycles, p. ex. à six temps

Abrégé

A wrist pin cap for a piston. The wrist pin cap is configured to form an interference fit with the piston. In specific embodiments, the wrist pin cap is positioned within the piston adjacent to an end of a wrist pin. In certain specific embodiments, the wrist pin cap is configured to form an interference fit with a counterbore of the piston. Some specific embodiments include a method for shrink fitting a wrist pin cap within a piston. In more specific embodiments, the wrist pin cap is shrunk by an application of liquid nitrogen.

Classes IPC  ?

• F16J 1/18 - Blocage des axes de piston

Abrégé

An engine is provided with various enhanced features. For example, a 2-stroke diesel engine has a porting design that enhances the efficiency of a scavenging event. In specific embodiments, a four-piece piston is positioned in each cylinder of the engine. The four-piece piston includes a bowl, a ring retainer, a skirt, and a wrist-pin bearing. In various embodiments, fuel pumps are coupled to fuel channels or high-pressure lines to provide a constant and equal high-pressure fuel supply to engine cylinders. In more specific embodiments, the length of each of the high-pressure lines is the same. In certain specific embodiments, complimentary screws form a supercharger that further improves engine efficiency by providing high-pressure intake air to the porting process.

Classes IPC  ?

• F02B 25/04 - Moteurs ayant des orifices à la fois dans la culasse et dans la paroi du cylindre près du point mort bas de la course du piston
• F02B 23/06 - Autres moteurs caractérisés par des chambres de combustion d'une forme ou d'une structure particulières pour améliorer le fonctionnement avec allumage par compression l'espace de combustion étant disposé dans le piston moteur
• F02B 75/02 - Moteurs caractérisés par leurs cycles, p. ex. à six temps

Abrégé

An engine is provided with a cylinder liner that extends beyond the surface of the crankcase surrounding the cylinder. When the engine is oriented in an inverted V-block configuration, the extension of the cylinder liner provides a barrier to oil that can pool on the crankcase surface and otherwise enter the interior of the cylinder, absent such a barrier.

Classes IPC  ?

• F02F 1/00 - CylindresCulasses de cylindres
• F02B 75/02 - Moteurs caractérisés par leurs cycles, p. ex. à six temps
• F02B 75/22 - Moteurs polycylindriques avec les cylindres disposés en V, en éventail ou en étoile

Produits et services

diesel engines not for land vehicles; aircraft engines; aircraft engine installation kits, not for land vehicles, comprising specially adapted metal mounting structures that attach to the aircraft and secure the engine to other aircraft engine kit parts, and the following separate kits: cooling system kits in the nature of air, coolant, fuel and oil radiators, coolers, and fans; air induction system kits used for engine air induction in the nature of tubing, air scoops, and flow dividers for water entrapment and draining; lubrication system kits in the nature of self-lubricating water and fuel tanks, pumps and lines for engine use; fuel system kits in the nature of pumps, filters, fuel lines, attenuators, and coolers; instrumentation kits in the nature of temperature, pressure, rotational speed, and fluid flow rate sensors required to monitor and control an engine; control system kits in the nature of engine fuel and air systems controls, propeller and propeller controls, electrical power generation controls, controls for cabin heating; cooling system kits in the nature of air ducts, heat exchangers; fire prevention system kits in the nature of fire-resistant and fire-proof materials and fire-suppression systems comprised of charged bottles, charge gages, mounting bases and straps, pull cables, nozzles, fittings, tubing, stickers and cowl flaps; and fuel injection system kits for engines

Abrégé

A 2-cycle, direct-injection diesel engine configured to accommodate low cetane diesel and jet fuels. The engine includes combustion chambers having surfaces which are operable at high temperatures during engine operation to increase the combustion rate of low cetane fuels. The engine is further configured to reduce starting times in cold and/or low pressure situations such as those experienced during attempts to restart a plane engine at relatively high altitudes.

Classes IPC  ?

• F01P 3/02 - Disposition du refroidissement des cylindres ou des hauts de cylindres
• F02B 9/02 - Moteurs caractérisés par d'autres types d'allumage avec allumage par compression
• F02F 3/00 - Pistons
• F02B 37/00 - Moteurs caractérisés par l'utilisation de pompes entraînées au moins temporairement par les gaz d'échappement
• F02B 23/06 - Autres moteurs caractérisés par des chambres de combustion d'une forme ou d'une structure particulières pour améliorer le fonctionnement avec allumage par compression l'espace de combustion étant disposé dans le piston moteur
• F02B 33/34 - Moteurs avec pompes autres que celles du type à piston alternatif avec pompes rotatives
• F02B 37/04 - Moteurs avec entraînement des pompes par les gaz d'échappement et par d'autres moyens, p. ex. avec une pompe entraînée par les gaz d'échappement et une seconde pompe entraînée mécaniquement
• F02B 75/02 - Moteurs caractérisés par leurs cycles, p. ex. à six temps
• F02F 1/00 - CylindresCulasses de cylindres
• F02B 33/02 - Moteurs avec pompes à piston alternatifMoteurs avec pompes sous carter de l'arbre-manivelle
• F02B 1/12 - Moteurs caractérisés par la compression d'un mélange air-combustible avec allumage par compression
• F02B 61/04 - Adaptations des moteurs à l'entraînement des véhicules ou des hélicesAssociation des moteurs avec une transmission mécanique pour entraîner des hélices

Produits et services

Aircraft engines; aircraft engine installation kits comprised of specially adapted metal mounting structures, attached to the aircraft, for securing the engine, along with attachment points for connecting other aircraft engine kit parts, namely, cooling systems in the nature of air, coolant, fuel and oil radiators, coolers, and fans, air induction systems in the nature of tubing, air scoops, flow dividers, water entrapment and draining used for engine induction air, lubrication systems, namely, water and fuel tanks, pumps and lines, fuel systems in the nature of pumps and lines, fuel systems in the nature of pumps, filters, fuel lines, attenuators, and coolers, instrumentation in the nature of temperature, pressure, rotational speed, and fluid flow rate sensors required to monitor and control an engine, control systems in the nature of engine fuel and air systems controls, propeller and propeller controls, electrical power generation and controls, controls for cabin heating and cooling systems, namely, air ducts, heat exchangers, fire-suppression systems comprised of charged bottles, charge gages, mounting bases and straps, pull cables, nozzles, fittings, tubing, and stickers, and cowling, namely, cowl flaps

Abrégé

A 2-cycle, direct-injection diesel engine configured to accommodate low cetane diesel and jet fuels. The engine includes combustion chambers having surfaces which are operable at high temperatures during engine operation to increase the combustion rate of low cetane fuels. The engine is further configured to reduce starting times in cold and/or low pressure situations such as those experienced during attempts to restart a plane engine at relatively high altitudes.

Classes IPC  ?

• F01P 3/02 - Disposition du refroidissement des cylindres ou des hauts de cylindres
• F02B 9/02 - Moteurs caractérisés par d'autres types d'allumage avec allumage par compression
• F02B 23/06 - Autres moteurs caractérisés par des chambres de combustion d'une forme ou d'une structure particulières pour améliorer le fonctionnement avec allumage par compression l'espace de combustion étant disposé dans le piston moteur
• F02B 33/34 - Moteurs avec pompes autres que celles du type à piston alternatif avec pompes rotatives
• F02B 37/04 - Moteurs avec entraînement des pompes par les gaz d'échappement et par d'autres moyens, p. ex. avec une pompe entraînée par les gaz d'échappement et une seconde pompe entraînée mécaniquement
• F02B 75/02 - Moteurs caractérisés par leurs cycles, p. ex. à six temps
• F02F 1/00 - CylindresCulasses de cylindres
• F02F 3/00 - Pistons
• F02B 1/12 - Moteurs caractérisés par la compression d'un mélange air-combustible avec allumage par compression
• F02B 33/02 - Moteurs avec pompes à piston alternatifMoteurs avec pompes sous carter de l'arbre-manivelle
• F02B 37/00 - Moteurs caractérisés par l'utilisation de pompes entraînées au moins temporairement par les gaz d'échappement
• F02B 61/04 - Adaptations des moteurs à l'entraînement des véhicules ou des hélicesAssociation des moteurs avec une transmission mécanique pour entraîner des hélices

Abrégé

A single input engine controller and system are provided for translating a single input indicative of the amount of fuel to be supplied to an engine from a fuel control interface into separate signals for controlling the amount of fuel supplied to the engine and the RPM of a propeller powered by that engine. The single input controller translating the single input into the separate signal for the RPM of the propeller according to a fuel efficiency relationship between the fuel amount and the propeller RPM.

Classes IPC  ?

• B64D 31/02 - Dispositifs amorçant la mise en œuvre
• B64D 35/00 - Transmission de la puissance des groupes moteurs aux hélices ou aux rotorsAménagements des transmissions

Abrégé

A 2-cycle, direct-injection diesel engine configured to accommodate low cetane diesel and jet fuels. The engine includes combustion chambers having surfaces which are operable at high temperatures during engine operation to increase the combustion rate of low cetane fuels. The engine is further configured to reduce starting times in cold and/or low pressure situations such as those experienced during attempts to restart a plane engine at relatively high altitudes.

Classes IPC  ?

• F02B 75/02 - Moteurs caractérisés par leurs cycles, p. ex. à six temps
• F02B 37/00 - Moteurs caractérisés par l'utilisation de pompes entraînées au moins temporairement par les gaz d'échappement
• F02B 33/02 - Moteurs avec pompes à piston alternatifMoteurs avec pompes sous carter de l'arbre-manivelle
• F02B 1/12 - Moteurs caractérisés par la compression d'un mélange air-combustible avec allumage par compression

Abrégé

An internal combustion engine that includes a crankcase having a crankcase pressure defined within the crankcase relative to an ambient pressure. The crankcase pressure varies in response to operation of the internal combustion engine. A crankcase pressure regulator is in fluid communication with the crankcase, and the crankcase pressure regulator includes a first passageway defining a first flow path, a second passageway defining a second flow path in a parallel arrangement to the first passageway. When the crankcase pressure is less than a first predetermined pressure, the first valve moves to the open position to allow a fluid flow into the crankcase through the first passageway. When the crankcase pressure is greater than a second predetermined pressure, the second valve moves from the closed position to the open position to allow a fluid flow from the crankcase through the second passageway.

Classes IPC  ?

• F01M 13/02 - Ventilation ou aération du carter par une source additionnelle de pression ou de dépression
• F16K 17/19 - Soupapes ou clapets d'équilibrage, principalement pour réservoirs

Abrégé

An internal combustion engine that includes a crankcase having a crankcase pressure defined within the crankcase relative to an ambient pressure. The crankcase pressure varies in response to operation of the internal combustion engine. A crankcase pressure regulator is in fluid communication with the crankcase, and the crankcase pressure regulator includes a first passageway defining a first flow path, a second passageway defining a second flow path in a parallel arrangement to the first passageway. When the crankcase pressure is less than a first predetermined pressure, the first valve moves to the open position to allow a fluid flow into the crankcase through the first passageway. When the crankcase pressure is greater than a second predetermined pressure, the second valve moves from the closed position to the open position to allow a fluid flow from the crankcase through the second passageway.

Classes IPC  ?

• F01M 13/00 - Ventilation ou aération du carter
• F02B 25/06 - Moteurs ayant des orifices à la fois dans la culasse et dans la paroi du cylindre près du point mort bas de la course du piston les orifices de la culasse étant commandés par les pistons moteurs, p. ex. par des prolongements de ces derniers en forme de manchon

Produits et services

diesel engines not for land vehicles

Produits et services

Diesel engines for recreational vehicles