公开(公告)号：US12012910B2

公开(公告)日：2024-06-18

申请号：US17873705

申请日：2022-07-26

Applicant: Textron Innovations, Inc.

Inventor： Patrick Henry Baer ,  Michael Glynn Glucksman

IPC: F02F1/24 ,  B64D27/04 ,  F01L3/02 ,  F01L3/08 ,  F02F1/28 ,  F02F1/42

CPC classification number: F02F1/242 ,  B64D27/04 ,  F01L3/02 ,  F01L3/08 ,  F02F1/28 ,  F02F1/4235

Abstract: An improved air-cooled aviation engine includes a compact combustion chamber having an intake valve opening, an exhaust valve opening, and a generally elliptical shape. The elliptical shape has a major axis and a minor axis, with the major axis intersecting both the intake valve opening and the exhaust valve opening. In some examples, the major axis is the same length or shorter than a diameter of a cylinder bore of the engine, and the minor axis is smaller than the major axis. Combustion is thus constrained to a smaller area than that of the cylinder bore.

公开(公告)号：US20240337227A1

公开(公告)日：2024-10-10

申请号：US18745150

申请日：2024-06-17

Applicant: Textron Innovations Inc.

Inventor： Patrick Henry Baer ,  Michael Glynn Glucksman

IPC: F02F1/24 ,  B64D27/04 ,  F01L3/02 ,  F01L3/08 ,  F02F1/28 ,  F02F1/42

CPC classification number: F02F1/242 ,  B64D27/04 ,  F01L3/02 ,  F01L3/08 ,  F02F1/28 ,  F02F1/4235

Abstract: An improved air-cooled aviation engine includes a compact combustion chamber having an intake valve opening, an exhaust valve opening, and a generally elliptical shape. The elliptical shape has a major axis and a minor axis, with the major axis intersecting both the intake valve opening and the exhaust valve opening. In some examples, the major axis is the same length or shorter than a diameter of a cylinder bore of the engine, and the minor axis is smaller than the major axis. Combustion is thus constrained to a smaller area than that of the cylinder bore.