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：US20200095959A1

公开(公告)日：2020-03-26

申请号：US16171853

申请日：2018-10-26

Applicant: BRP US INC. ,  WALBRO LLC

Inventor： Matthew James YOUNG ,  Justin JOHNSON ,  Paul WESTHOFF, JR. ,  Travis P. BAUR ,  Kevin L. ISRAELSON ,  David D. HACKER ,  Nathan BLANK ,  David Scott SODERMAN

IPC: F02M25/08

Abstract: A marine outboard engine includes an internal combustion engine including at least one fuel injector; a fuel vapor separator including: a separator body, a fuel reservoir defined by the separator body, and a first fuel pump fluidly connected between the fuel reservoir and the fuel injector; a fuel tank; and a second fuel pump fluidly connected between the fuel tank and the fuel vapor separator. The fuel vapor separator includes a heat exchanger disposed in the separator body. The heat exchanger includes at least one fuel channel defined by the heat exchanger body, the at least one fuel channel including: an inlet adapted for receiving fuel from the engine, and an outlet fluidly communicating with the fuel reservoir; and at least one coolant channel defined by the heat exchanger body, the at least one fuel channel and the at least one coolant channel being in thermal communication.

公开(公告)号：US20220316420A1

公开(公告)日：2022-10-06

申请号：US17848201

申请日：2022-06-23

Applicant: BRP US INC.

Inventor： Justin JOHNSON ,  Nathan BLANK ,  Jeremiah GILLIS

IPC: F02F1/42 ,  F02F3/00 ,  F02F7/00

Abstract: An exhaust valve system for a two-stroke internal combustion engine having: at least one exhaust valve movable between open and closed positions; an actuator for moving the at least one exhaust valve; a valve position sensor; a controller communicating with the actuator and the valve position sensor. The controller being programmed for: controlling the actuator to attempt to move the at least one exhaust valve to a desired one of the open and closed positions; determining if the at least one exhaust valve has failed to reach the desired position based on the position of the at least one exhaust valve sensed by the valve position sensor; and controlling the actuator to move the at least one exhaust valve to an intermediate position when the at least one exhaust valve has failed to reach the desired position.