Southwest Research Institute

Scuderi Group, Inc.

Thomas E Briggs, Jr

Graham Thomas Conway

Charles Edward Roberts, Jr

David Pratt Branyon

Christopher James Chadwell

Stephen P Scuderi

Garrett L Anderson

Kevin L Hoag

Ford Allen Phillips

Terrance Francis Alger

Separation of carbon dioxide from the exhaust of an internal combustion engine, the production of hydrogen from water, and reformation of carbon dioxide and hydrogen into relatively high-octane fuel components.

Internal combustion engine having carbon dioxide capture and fuel additive synthesis system

Combustion engines, and more particularly, integrating a supercritical fluid passageway into a cylinder head and/or cylinder block of an engine, and preferably, a combustion engine. Both a combustion engine system and a method of cooling a cylinder head in an internal combustion engine, utilizing supercritical fluid, are disclosed.

Techniques for engine cooling using supercritical fluids and a combustion engine system implementing the same

A cylinder head is disclosed herein to allow for temperature control of exhaust gases exiting from an associated exhaust manifold. The cylinder head includes a combustion section that defines a plurality of combustion chambers and an exhaust manifold coupled to the combustion section. The combustion section fluidly couples to exhaust inlets defined by the exhaust manifold. The exhaust manifold includes at least one exhaust passageway in fluid communication with the exhaust inlets and in fluid communication with an exhaust outlet to receive combustion gases from the combustion section and output the same via the exhaust outlet. The exhaust manifold further includes at least one coolant passageway that at least partially surrounds the at least one exhaust passageway to pass coolant therethrough in order to draw and reject heat from exhaust gases.

Cylinder head with integrated cooling circuit for use in internal combustion engines

A method of operating a hydrogen-fueled internal combustion engine. The engine is determined to have a mode control value, which represents a threshold torque. During operation of the engine, a demanded torque of the internal combustion engine is determined and compared to the threshold torque. If the demanded torque is less than the threshold torque, the engine is operated in a low load mode that uses spark ignition and pre-mixed combustion. If the demanded torque is greater than the threshold torque, the engine is operated in a high load mode that uses compression ignition and diffusion combustion.

Multiple mode operation of hydrogen-fueled internal combustion engine

Aspects and embodiments disclosed herein indicate a correlation exists between a specific gravity of combustible fuel and the occurrence of low-speed pre-ignition (LSPI) within engines. Thus techniques are disclosed herein for online measurement of the specific gravity of fuel within an engine, and allow for preventative measures to be executed to minimize or otherwise mitigate the incidence of LSPI when the calculated specific gravity of the fuel exceeds a predefined threshold. In an embodiment, the preventative measures may include, for example, altering or otherwise adjusting an engine map such that an injection timing scheme injects less poor-quality fuel into engine cylinders, thus advantageously preventing the engine from operating at full-power when conditions for LSPI are present.

Techniques for mitigating low-speed pre-ignition conditions in an engine and a fuel delivery system using the same

In some embodiments, split-cycle engines are disclosed that are capable of operating in a normal firing mode in which a firing stroke is performed in the expansion cylinder only on every other rotation of the crankshaft. Fuel can be injected directly into the expansion cylinder during the non-firing rotation of the crankshaft over a period of time greater than what is possible with traditional split-cycle engines. A number of other advantages are associated with such engines. In some embodiments, two expansion cylinders can be provided such that a firing stroke is performed on every rotation of the crankshaft, even though each individual expansion cylinder only performs a firing stroke on every other rotation of the crankshaft. Air hybridized and/or Millerized variations of these engines, as well as various cylinder arrangements, are also disclosed herein.

Growing community of inventors

Helotes, TX, United States of America

Thomas E Briggs, Jr