PRECHAMBER-TYPE ENGINE

WIPO Patent Application WO/2024/038789

A1

Provided is a prechamber-type engine comprising a cylinder, a cylinder head, and a piston defining a main combustion chamber between the cylinder and the cylinder head. Inside the cylinder head, a pre-combustion chamber communicating with the main combustion chamber via an injection hole is defined. The injection hole extends such that the distance between the center of the injection hole and the central axis line of the cylinder becomes smaller from a prechamber-side opening toward a main chamber-side opening. A top surface of the piston has a recessed piston cavity. In a cross sectional view in which the central axis line of the cylinder and the center of the main chamber side opening are present, a first end that is on the side of the circumferential edge of the main chamber-side opening farther from the central axis line of the cylinder is positioned farther from the central axis line of the cylinder than a second end that is on the side of the circumferential edge of the piston cavity closer to the injection hole.

JP4662755	Fuel injection system
JPH0768901	[Title of the Invention] Combustion chamber of a direct injection diesel engine
JP3942181	PISTON STRUCTURE FOR ENGINE

NAKANO HIROKI (JP)
MAKI MASAYA (JP)
KUROIWA TAKAHIRO (JP)

PCT/JP2023/028711

February 22, 2024

August 07, 2023

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MITSUBISHI HEAVY IND ENGINE & TURBOCHARGER LTD (JP)

F02F3/26; F02B19/08

JP2022102412A	2022-07-07
JPH08200072A	1996-08-06
JPH0893475A	1996-04-09

SSIP PATENT ATTORNEY CORPORATION (JP)

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