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.

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.

公开(公告)号：US20140102400A1

公开(公告)日：2014-04-17

申请号：US14054739

申请日：2013-10-15

Applicant: BRP US INC

Inventor： Paul WESTHOFF, JR. ,  Justin JOHNSON

IPC: F02F1/18

CPC classification number: F02F1/18 ,  F02F1/22

Abstract: A cylinder comprises a cylinder axis, a cylindrical wall, and an exhaust port defined in the wall. At least one central transfer port and at least two side transfer ports are defined in the wall. Each of the at least one central transfer port and each of the at least two side transfer ports has a transfer channel extending therefrom. For each of the at least one central transfer port, an angle about the cylinder axis between a center of the central transfer port and a center of the exhaust port is greater than 135° and less than or equal to 180°. For each of the at least two side transfer ports, an angle about the cylinder axis between a center of the side transfer port and the center of the exhaust port is less than or equal to 135°. Engines and cylinder blocks are also disclosed.

Abstract translation: 气缸包括气缸轴线，圆柱形壁和限定在壁中的排气口。 至少一个中央传送端口和至少两个侧传送端口限定在墙壁中。 所述至少一个中央传送端口和所述至少两个侧传送端口中的每一个具有从其延伸的传送通道。 对于所述至少一个中央传送端口中的每一个，围绕中心传送端口的中心与排气口的中心之间的气缸轴线的角度大于135°且小于或等于180°。 对于至少两个侧传送口中的每一个，侧传送口的中心和排气口的中心之间的气缸轴线的角度小于或等于135°。 还公开了发动机和气缸体。