ENHANCED FUEL MIXING SYSTEMS FOR DIRECT INJECTED NATURAL GAS ENGINES, AND DEVICES AND METHODS THEREOF

WIPO Patent Application WO/2024/076879

A3

Systems, apparatus, and methods described herein can overcome some of the disadvantages of existing internal combustion engines. In particular, systems, apparatus, and methods described herein can improve the mixing uniformity of fuel and air in internal combustion engines. In some aspects, an engine can include a fuel supply, a pressure regulator, an electric gas valve configured to control fuel flow, a fuel injector, the fuel injector including a mechanical fuel admission valve and a shroud, a cam configured to control the mechanical fuel admission valve, and a main combustion chamber including a piston and a top surface configured to contact the shroud of the fuel injector, wherein the shroud includes a rounded surface configured to direct a flow of fuel toward a geometric center of the piston. In some embodiments, the mechanical fuel admission valve can include an enlarged distal end configured to contact a surface of the shroud.

JP2007085181	INDIRECT INJECTION INTERNAL COMBUSTION ENGINE
JP2004251195	GAS ENGINE

OLSEN DANIEL B (US)
MCCOY JAMES J (US)
HOFFENBECKER NATHANIEL P (US)
MACDONALD JACK D (US)
XIE NELSON (US)
MANFREDI MICHAEL J (US)

PCT/US2023/075587

May 16, 2024

September 29, 2023

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RADICAL COMBUSTION TECH LLC (US)
OLSEN DANIEL B (UA)
MCCOY JAMES J (US)
HOFFENBECKER NATHANIEL P (US)
MACDONALD JACK D (US)
XIE NELSON (US)
MANFREDI MICHAEL J (US)

F02B19/10; F02B23/10; F02M21/02

WO2004106728A1

2004-12-09

US7451942B2	2008-11-18
US5211145A	1993-05-18
CA2049400C	1995-03-21

TALBOT, C. Scott et al. (US)

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