Marc Christopher Megel

8267148, Sep 18, 2012

Sep 9, 2011

13/229352

Marc C. Megel - LaVernia TX, US
Douglas A. McKee - Helotes TX, US
Barry E. Westmoreland - Adkins TX, US
Keith E. Denholm - Shrewsbury, GB

Southwest Research Institute - San Antonio TX

B22C 9/10

164 28, 164 19, 164200, 164369

A hybrid ceramic/sand casting method of manufacturing a metal part. The method is especially suitable for parts having one or more very small internal gaps, such as might occur with a linear passage or round opening. These parts are formed using a hybrid core having at least one ceramic section and at least one sand section, with the ceramic section being used to create the internal gap. A mold cavity is created for the part, and the hybrid core is positioned in the mold. Molten metal is introduced into the mold, and after the metal cools, the core is removed, thereby forming the part with the internal gap.

8544450, Oct 1, 2013

Oct 14, 2009

12/578936

Marc C. Megel - LaVernia TX, US
Mark A. Tussing - San Antonio TX, US
Barry E. Westmoreland - Adkins TX, US

Southwest Research Institute - San Antonio TX

F02M 61/14

123470, 123 4182 R, 123169 CA

A cylinder head sleeve for an engine is provided comprising a sleeve first part and a sleeve second part which form a cavity to contain a fuel injector or an ignitor, and wherein the sleeve first part and the sleeve second part which form a joint for the sleeve first part and the sleeve second part to move relative to each other. A cylinder head assembly is also provided comprising the sleeve and a cylinder head, as well as a method of providing the cylinder head assembly.

20110083624, Apr 14, 2011

Oct 14, 2009

12/578910

Marc C. MEGEL - LaVernia TX, US
Mark A. TUSSING - San Antonio TX, US
Barry E. WESTMORELAND - Adkins TX, US
Douglas A. McKEE - Helotes TX, US
Riccardo MELDOLESI - West Sussex, GB
Gareth ROBERTS - Newhaven, GB

SOUTHWEST RESEARCH INSTITUTE - San Antonio TX

F02F 1/40
F02F 1/42

123 4182R, 1231935

A cylinder head for an engine is provided comprising a monolithic structure forming an upper deck, a fire deck, at least one coolant jacket and a cavity to accommodate a fuel injector or an ignitor therein, the cavity defined by a wall connecting the fire deck with the upper deck. The wall connecting the fire deck with the upper deck, as well as other features of the cylinder head, are preferably arranged to support the fire deck against a deflection thereof by transmitting a mechanical load introduced on a flame face of the fire deck to the upper deck. A method of increasing the stiffness of the cylinder head is also provided.

20230073196, Mar 9, 2023

Sep 7, 2021

17/467809

- San Antonio TX, US
Anthony S. Perkins - Shoreham-by-Sea, GB
Ian P. Gilbert - Shoreham-by-Sea, GB
Christopher L. Wray - San Antonio TX, US
Marc C. Megel - Olathe CO, US
Zainal Abidin - San Antonio TX, US

Southwest Research Institute - San Antonio TX

F02B 23/10
F02B 43/10

A far square or diamond architecture engine with tumble flow to support spark-ignited fuel usage. The engine may be provided in a configuration generally suited for swirl flow, compression combustion fuel usage. However, the introduction of a unique, replaceable valve head assembly may be utilized to induce tumble flow within a combustion chamber of the engine. Thus, spark-ignited fuel may be utilized without requiring vast overhaul of the engine to accommodate such fuels. Notably, with the addition of such an assembly, diesel fuel may be replaced with natural gas on large scale equipment without the requirement of impractically burdensome or expensive measures.

20230077310, Mar 9, 2023

Sep 7, 2021

17/468016

- San Antonio TX, US
Zainal Abidin - San Antonio TX, US
Kevin L. Hoag - San Antonio TX, US
Anthony S. Perkins - Shoreham-by-Sea, GB
Ian P. Gilbert - Shoreham-by-Sea, GB
Marc C. Megel - Olathe CO, US

Southwest Research Institute - San Antonio TX

F02F 1/42
F02B 1/06

An engine with a vertically oriented parallel valve and stem arrangement accommodating tumble flow to support spark-ignited fuel usage. The engine may be provided in a configuration generally suited for swirl flow, compression combustion fuel usage. However, the introduction of a unique, replaceable valve head assembly may be utilized to induce tumble flow within a combustion chamber of the engine. Thus, spark-ignited fuel may be utilized without requiring vast overhaul of the engine to accommodate such fuels. Notably, with the addition of such an assembly, diesel fuel may be replaced with natural gas on large scale equipment without the requirement of impractically burdensome or expensive measures.

20170002774, Jan 5, 2017

Jun 30, 2015

14/755058

Martin Selway - Steyning, GB
Ian Paul Gilbert - Shoreham-by-Sea, GB
Marc C. Megel - La Vernia TX, US

Southwest Research Institute - San Antonio TX

F02M 26/41
F02M 26/70
F02M 26/53
F02M 26/55
F02M 26/16
F02M 26/42

An exhaust gas recirculation (EGR) system for an internal combustion engine having two dedicated EGR cylinders. A dual valve system is used to control the output of the dedicated EGR cylinders so that the engine may intake EGR exhaust from both, only one, or neither of the dedicated EGR cylinders.