公开(公告)号：US20220316421A1

公开(公告)日：2022-10-06

申请号：US17848204

申请日：2022-06-23

Applicant: BRP US INC.

Inventor： Justin JOHNSON ,  Roger RAETZMAN ,  Mike DAVENPORT ,  Joseph ZAMORA

IPC: F02F1/42 ,  F02F3/00 ,  F02F7/00

Abstract: An exhaust valve assembly for a two-stroke internal combustion engine has a housing adapted for connection to an engine block of the two-stroke internal combustion engine; an electric actuator having an electric motor, the electric motor being disposed in the housing; and at least one reciprocating exhaust valve operatively connected to the electric actuator. The at least one exhaust valve is linearly movable by the electric motor. A portion of the at least one exhaust valve is disposed in the housing.

公开(公告)号：US20240359784A1

公开(公告)日：2024-10-31

申请号：US18362217

申请日：2023-07-31

Applicant: BRP US Inc.

Inventor： Dillon SAVAGE ,  Justin JOHNSON ,  Nathan BLANK ,  Dale WIEGELE ,  Roger RAETZMAN ,  Paul KLUG

IPC: B63H20/24 ,  F01N13/00

CPC classification number: B63H20/245 ,  F01N13/004

Abstract: An outboard engine assembly has an engine unit including an engine unit housing, an internal combustion engine disposed in the engine unit housing, the engine defining at least one combustion chamber, a gearcase connected to the engine unit housing, and an exhaust system, the exhaust system including an idle relief passage fluidly communicating with an exhaust passage, the idle relief passage having an idle relief outlet, the idle relief passage extending through the engine unit housing for supplying exhaust gases from the at least one combustion chamber to an exterior of the engine unit housing via the idle relief outlet, the idle relief outlet being disposed vertically higher than the exhaust outlet and vertically lower than a waterline when the outboard engine assembly is mounted to a watercraft and the watercraft is at rest, and a propulsion device operatively connected to the engine.

公开(公告)号：US20220316419A1

公开(公告)日：2022-10-06

申请号：US17848198

申请日：2022-06-23

Applicant: BRP US INC.

Inventor： Justin JOHNSON ,  Joseph ZAMORA ,  Roger RAETZMAN

IPC: F02F1/42 ,  F02F3/00 ,  F02F7/00

Abstract: A reciprocating exhaust valve for a two-stroke internal combustion engine has a shaft for connection to a valve actuator, the shaft defining a reciprocation axis of the valve, the reciprocation axis defining a longitudinal direction of the valve; and a blade having: a first end having an arcuate edge, a second end connected to the shaft, two side portions, and a central portion. The blade has a first end portion adjacent the first end that includes a part of the central portion and of each of the two side portions. A width of the central portion is greater than a width of each of the side portions. In the first end portion, a thickness of the part of each of the two side portions is greater than a thickness of the part of the central portion.