Cummins Inc.

Cummins Power Generation Inc.

Alan C Anderson

George Martin Tolhurst

Andrew Guy Kitchen

Nicholas James Welch

Xu Han

Daniel J O'Connor

Xiao Qin

Joshua Bradley Bettis

Matthew Keith Sease

David Guillermo Gonzalez Medina

William Marshall Cover

John Robert Andras

David P Richter

Jonathan Bowen Wickliff

Jeremy Aaron Lackey

Axel Otto Zur Loye

Jisang Sun

Steven L Leffler

Rahul Bhardwaj

Benjamin L Olivas

John A Rennekamp

Irvin P Rutan

Benjamin Dodman

Mark T Stablein

Philip M Medalie

Benjamín L Olivas

Jeremy A Lackey

Dilip Ramachandran

Daniel Guillermo Gonzalez Medina

A gaseous fuel-air mixer includes an outer shell, an inner shell, and a fuel chamber rib. The outer shell includes an air intake and a fuel intake. The air intake is configured to receive air. The air intake has an air outlet. The fuel intake has a fuel inlet that is configured to receive fuel. The inner shell includes an inner shell intake that is configured to separately receive the air from the air outlet and the fuel from the fuel intake and to provide a gaseous fuel-air mixture. The inner shell cooperates with the outer shell to define a fuel intake collecting chamber that is configured to receive the fuel from the fuel inlet and a fuel intake concentrating chamber that is configured to receive the fuel from the fuel intake collecting chamber and provide the fuel to the inner shell intake.

Gaseous fuel-air mixer with higher mixture uniformity

A flow splitter may include an inlet, at least two outlets, and an internal vane comprising a first end corresponding to the inlet and a second end corresponding to the at least two outlets, wherein the internal vane is configured to turn, between the first end and the second end, an internal flowing fluid from 0 degrees to a degree between about 60 degrees and 150 degrees. Methods of dividing fluid flow are also provided.

Flow divider with internal vane

Spark plugs are disclosed that include electrode arrangements to improve the charge flow into and out of the annular volume around the insulator nose and a pre-chamber volume of a pre-chamber device, thus directing a purge of exhaust gases trapped in the annular volume to a space formed by the exterior of the spark plug body and the interior of the pre-chamber device.

Spark plug configurations with electrode to direct charge flow for a combustion pre-chamber of an internal combustion engine

A combustion pre-chamber assembly includes pre-chamber device body defining an annular plenum that is in fluid communication with the at least one bore that extends through the spark plug shell. The annular plenum is also in communication with at least one purging passage that extends from the annular plenum to an end surface of the pre-chamber device body. Residual exhaust gases in the annular volume of the spark plug are purged by fresh charge flow from the main combustion chamber as the piston approaches top dead center. The fresh charge flow that is provided to the annular plenum through the at least one purging passage and into the annular volume of the spark plug through the at least one bore through the spark plug shell.

Combustion pre-chamber assemblies for an internal combustion engine

A combustion pre-chamber device for a spark ignition internal combustion engine is configured to engage a spark plug and be mounted to a cylinder head in communication with a combustion chamber of a cylinder of the engine. The combustion pre-chamber device includes any one or combination of a number of features to improve operating effectiveness, including extending the combustion operating range by improving cooling and optimizing the flow field inside the combustion pre-chamber device.

Combustion pre-chamber device for an internal combustion engine

A compressor bypass reintroduction system includes a compressor intake manifold and a bypass conduit. The compressor intake manifold defines a fluid plenum. The compressor intake manifold is engageable with a compressor. The bypass conduit extends into the fluid plenum and includes an ejector line. The ejector line is configured to be substantially collinear with the compressor and to discharge flow toward the compressor. In some embodiments, an outlet of the ejector is disposed proximate to an outlet of the fluid plenum that discharges flow into the compressor.

Turbocharger compressor bypass coaxial re-introduction system to optimize transient load response

A spark plug is disclosed that includes at least one bore extending through a shell of the spark plug in order to form a passageway between an annular volume around the spark plug insulator nose and a pre-chamber volume of a pre-chamber device, thus directing a purge of exhaust gases trapped in the annular volume to a space formed by the exterior of the spark plug body and the interior of the pre-chamber device.

Spark plug for an internal combustion engine having a combustion pre-chamber

Methods and devices are disclosed for introducing a compressor bypass flow that is returned from location that is downstream of a pressure source of an internal combustion engine to an air filter housing that is located upstream of the pressure source.

Compressor bypass flow arrangement

A pre-chamber assembly of an internal combustion engine comprises a pre-chamber housing and a plurality of nozzles extending through a portion of the pre-chamber housing. The plurality of nozzles are directed to one location.

Pre-chamber assembly

A shielded ignition configuration is provided comprising a non-shield spark plug having an electrode, a spark plug extender having first end configured to mount to the spark plug such that a conductor of the extender makes electrical contact with the spark plug electrode, a second end having a cup configured for connection to a secondary lead such that the conductor makes electrical contact with the secondary lead, and a flange, and at least one retainer configured to engage the flange and cause a lower surface of the flange to engage an upper surface of a valve cover.

Shielded spark plug extension for conventional spark plugs

A method for combustion in a combustion chamber of an internal combustion engine includes mixing fuel and air to form a charge, flowing a first portion of the charge to the main chamber of an engine and a second portion of the charge to the pre-chamber volume of an engine, igniting the second portion of the charge in the pre-chamber volume, and delivering the ignited second portion of the charge to the main chamber.

Charge-fed pre-chamber assembly

A gaseous fuel introducer comprising a first mounting surface shaped and located to couple to a first wall of a charger; a first input, the first input being an air input; a second input, the second input being a gaseous fuel input; and a charge output. The charge output supplies a fuel-containing charge to an input of the charger. The introducer has a first mounting position that defines a first orientation of the second input relative to the charger. The introducer also has a second mounting position that defines a second orientation of the second input relative to the charger that is different than the first orientation.

Device and method for integrated annular low pressure gaseous fuel introduction

This disclosure provides an ignition coil for a spark ignited internal combustion engine. The ignition coil includes a coil body having an outer surface and internal windings coupled to a connector. The ignition coil also includes a housing surrounding the coil body. The housing has an outer wall spaced apart from the outer surface of the coil body thereby forming a gap between the outer surface of the coil body and the outer wall. The outer wall includes an opening in flow communication with the gap.

Growing community of inventors

Columbus, IN, United States of America

Alan C Anderson