Cummins Inc.

Cummins Engine Company, Inc.

Robin J Bremmer

Philipe F Saad

Rick Vaughan Lewis, Jr

J Steven Kolhouse

Agneya Turlapati

Samuel C Geckler

David J Stroh

Anthony Kyle Perfetto

Adrian P Dale

Andrew P Perr

Leon A LaPointe

Daniel J Mohr

Ryan Edward Schultz

Nikhil Jayant Ajotikar

Francois Ntone

Akintomide K Akinola

Milan K Visaria

Johnny Chung-Yin Tsai

Dennis King Chan

Axel Otto Zur Loye

Carlos Alcides Lana

Timothy P Lutz

Andrew Guy Kitchen

Steven J Kolhouse

Daniel J O'Connor

Trideep Singh

Veronica Susan Perks

Mark A Bargent

Roscoe A Baker

An intake air circuit is structured to transmit intake air from a turbocharger compressor to an intake manifold of an engine. A charge air cooler ('CAC'), a bypass line, and a bypass heater are each positioned along the intake air circuit in parallel with each other. A first control valve is structured to controllably divert the intake air around the CAC. A second control valve is structured to controllably divert the intake air around at least one of the bypass line and the bypass heater. A controller operatively coupled to each of the engine, and the first and second control valves is structured to control each of the first and second control valves to cause the intake air to flow along a determined desired flow path based on each of measured ambient temperature and measured engine load.

Engine intake air system including CAC bypass and separate bypass heater, and high-efficiency spark-ignited direct injection liquid propane engine architectures including same

A system and method for self-adjusting engine performance parameters in response to fuel quality variations that includes an exhaust sensor for measuring a level of carbon dioxide present in an exhaust manifold, at least one of a knock sensor and a cylinder pressure transducer for determining a location of peak pressure and a centroid, respectively, a controller in communication with the exhaust sensor and the at least one of the knock sensor and the cylinder pressure transducer, the controller correlating a methane number of the fuel used by the engine to a brake specific carbon dioxide value calculated using the level of carbon dioxide measured by the exhaust sensor and the at least one of the centroid and the location of peak pressure, and an adjusting mechanism, wherein the adjusting mechanism adjusts an engine performance parameter based on the determined methane number.

System and method for self-adjusting engine performance parameters during fuel quality variation

A method and system of power generating is provided to reduce a startup time of a genset for providing requested power to a utility grid or a load. The genset includes a generator, a turbocharger, and an energy storage. The generator includes an engine. The genset responds to a genset start signal by accelerating an engine speed of the generator to reach a synchronous speed. The engine speed is accelerated more rapidly by activating the energy storage device to supply power to at least one of the generator and the turbocharger. The generator then supplies power to the utility grid or load.

Method and system for reducing a startup time of a genset

A cooling system for a cylinder head of an internal combustion engine includes a cylindrical seat configured to engage an exhaust valve, a first coolant jacket, and a first conduit. The exhaust valve seat defines an annular cooling passage extending along a circumference of the cylindrical seat. A wall of the cylindrical seat defines a first opening into the annular cooling passage and a second opening into the annular cooling passage, where the first opening is positioned diametrically opposite to the second opening. The first coolant jacket is positioned adjacent to a fire-deck of the internal combustion engine. The first conduit fluidly couples the first coolant jacket to the at least one of the first opening and the second opening to the annular cooling passage in the exhaust valve seat.

Engine cooling system including cooled exhaust seats

Two-stage engine charge air system with branch conduits

The present disclosure provides an engine fueling system that includes multiple fueling valves such that the fuel transport delay can be reduced. The fueling system may also include an electrically driven compressor to improve engine properties during engine startup. For example, an engine fueling system comprising: a first compressor; an intake air throttle operably coupled to the first compressor and positioned downstream of the first compressor; a primary fuel path in communication with a fuel supply, wherein a first fuel from the fuel supply is injected into the primary fuel path upstream from the compressor; and a secondary fuel path in communication with the fuel supply, wherein a second fuel from the fuel supply is injected into the secondary fuel path downstream from the compressor.

Two point fuel system for gas power generation

Apparatuses, methods, and systems for igniting fuel for an internal combustion engine, an ignition system include a first ignition device associated with a pre-combustion chamber of a cylinder and a second ignition device associated with a main combustion chamber of the cylinder. An engine control unit is operably connected to both the engine and the ignition system to ignite fuel for the cylinder with the first ignition device independently of igniting fuel with the second ignition device. The engine control unit determines an occurrence of a combustion condition and in response thereto (i) ignites fuel for combustion with both the first and the second ignition devices or (ii) ignites fuel for combustion only with the second ignition device. The engine control unit determines a second combustion condition and in response thereto ignites fuel only with the first ignition device.

Apparatus and system for dual ignition sources for a vehicle

A system is provided comprising an engine having a first cylinder bank and a second cylinder bank disposed in a VEE configuration, a first compressor configured to compress fluid to a first pressure, a first cooler coupled to the first compressor, the first cooler receiving the compressed fluid from the first compressor and cooling the compressed fluid, a second compressor coupled to the first cooler, the second compressor being configured to receive cooled, compressed fluid from the first cooler and compress the cooled, compressed fluid to a second pressure that is higher than the first pressure, and a second cooler coupled to the second compressor, the second cooler receiving the compressed fluid from the second compressor and cooling the compressed fluid for introduction into the pair of cylinder banks. The first compressor, the first cooler, the second compressor and the second cooler are disposed within the VEE.

A tamper-proof dual spring controlled air fuel control for a compression ignition type internal combustion engine is provided wherein fuel is supplied to the engine cylinders in response to the pressure of the air in the intake manifold. A pair of oppositely biased springs controls the movement of a stem valve in response to intake manifold air pressure exerted on a flexible diaphragm located between the oppositely biased springs. The stem valve includes a plunger within a barrel in the air fuel control housing in the engine fuel pump. The cross-sectional profiles of the plunger and barrel are designed to meter precisely a controlled amount of fuel to the engine fuel supply system as the intake air pressure increases and to reduce this metered flow as the intake air pressure decreases. Two plunger and barrel assembly embodiments having different profiles are provided. A class fit between the barrel and plunger of the present air fuel control wherein the clearance must not exceed 0.000075 to 0.000125 inches and pressure regulating means located in the plunger substantially eliminate fuel leakage from the barrel. Internal venting means are provided to direct any minimal amount of fuel which might leak to the engine crankcase.

Dual spring air fuel control for the PT fuel system

Growing community of inventors

Columbus, IN, United States of America

Robin J Bremmer