Brunswick Corporation

Mark J Glodowski

Douglas D Reichardt

Gregg Donald Langenfeld

Charles H Eichinger

Jeffrey J Broman

George D Idzikowski

Steven J Gonring

Matthew W Jaeger

David J Belter

Trevor George

Timothy S Reid

Christopher J Taylor

David J Hilbert

Mark A Kollock

Wade A Loberger

Steven W Habeck

Tyler J Nackers

Jody A Peterson

Daniel B Slanker

Robert W Egleston

Premnath Natarajan

Robert Dreyer

A marine drive is for propelling a marine vessel. The marine drive includes: an engine; an exhaust manifold that conveys exhaust gas from the engine; a cooling jacket on the exhaust manifold, wherein a cooling passage is defined between the cooling jacket and the exhaust manifold; a cooling pump that pumps cooling fluid through the cooling passage so as to cool the exhaust manifold and the exhaust gas; a power steering actuator configured to steer the marine drive relative to the marine vessel; a power steering pump that pumps power steering fluid from a power steering reservoir to the power steering actuator; and a power steering cooler on the exhaust manifold and configured such that the power steering fluid is cooled by the cooling fluid in the cooling passage. In some examples the marine drive is configured for use in an outboard motor.

Marine drives having integrated exhaust and steering fluid cooling apparatus

An oil filter assembly for an engine of an outboard motor includes a base having a high-pressure inlet port, a filter-mounting interface for receiving a filter, and a drain-back port for receiving a drain-back insert of the filter. The base includes an engine-mounting interface for mounting the base to the engine, which includes a high-pressure outlet port and a low-pressure outlet port providing oil to the engine. The base provides fluid communication between the high-pressure inlet port and an inlet side of the filter and between an outlet side of the filter and the high-pressure outlet port when the filter is installed and the drain-back insert is within the drain-back port. The base provides fluid communication between the drain-back port and the low-pressure outlet port when the drain-back insert is not within the drain-back port. A clean oil fill passageway is in fluid communication with the low-pressure outlet port.

Oil filter assemblies

An exhaust system for a marine propulsion device having an engine and a driveshaft housing. An exhaust manifold having a downstream end with an outer surface conveys exhaust gas from the engine. An exhaust conduit having an upstream end with an outer surface conveys the exhaust gas to the driveshaft housing. A flexible coupler couples the downstream end of the exhaust manifold and the upstream end of the exhaust conduit, retaining a gap between them. A metallic coil is aligned with the flexible coupler, which biases the metallic coil into contact with the outer surfaces of the exhaust manifold and the exhaust conduit to conduct heat between them. First and second clamps engage outer surfaces of the flexible coupler to cause inner surfaces of the flexible coupler to sealingly engage the outer surface of the exhaust manifold, and the outer surface of the exhaust conduit, respectively.

High temperature exhaust systems for marine propulsion devices

A marine engine has a cylinder block with first and second banks of piston-cylinders that are vertically aligned and extend transversely with respect to each other in a V-shape so as to define a valley there between. A crankshaft is caused to rotate by the first and second banks of piston-cylinders. A flywheel is coupled to the upper end of the crankshaft such that rotation of the crankshaft causes rotation of the flywheel. An alternator is located above the cylinder block and coupled to the flywheel such that rotation of the flywheel operates the alternator.

Alternator configurations for outboard motors

An internal combustion engine for an outboard motor comprises a cylinder block having first and second banks of cylinders that extend transversely with respect to each other in a V-shape so as to define a valley there between. An exhaust manifold conveys exhaust gas from the internal combustion engine and is at least partially disposed in the valley. A supporting mechanism supports the exhaust conduit with respect to the internal combustion engine. The supporting mechanism is configured to allow the exhaust conduit to move with respect to the internal combustion engine in 360 degrees in a plane defined by the lateral and transverse axes, and laterally towards and away from the internal combustion engine, thereby facilitating assembly of the exhaust manifold and the internal combustion engine despite positional tolerance differences there between.

Outboard motors and exhaust systems for outboard motors having an exhaust conduit supported inside the V-shape

An outboard marine propulsion device comprises an internal combustion engine having a cylinder head and a cylinder block; and an exhaust manifold that discharges exhaust gases from the engine towards a vertically extending catalyst housing. The exhaust manifold has a plurality of horizontally extending inlet runners upwardly that receive the exhaust gases from the engine, and a vertically extending collecting passage that conveys the exhaust gases from the plurality of horizontally extending inlet runners to a bend that redirects the exhaust gases downwardly towards the catalyst housing.

Outboard marine propulsion devices and exhaust systems for outboard marine propulsion devices

An outboard marine propulsion device comprises an internal combustion engine having a cylinder head and a cylinder block and an exhaust manifold that discharges exhaust gases from the engine towards a vertically elongated exhaust tube. The exhaust manifold has a plurality of inlet runners that receive the exhaust gases from the engine, and a vertically extending collecting passage that conveys the exhaust gases from the plurality of inlet runners upwardly to a bend that redirects the exhaust gases downwardly towards the exhaust tube. A cooling water jacket is on the exhaust manifold and conveys cooling water alongside the exhaust manifold. A catalyst housing is coupled to the exhaust manifold and a cooling water jacket is on the catalyst housing and carries cooling water alongside the catalyst housing. A catalyst is disposed in the catalyst housing.

Outboard marine propulsion devices having cooling systems

Apparatuses for marine propulsion systems having an internal combustion engine comprise an exhaust conduit conveying exhaust from the internal combustion engine; a cooling jacket on the exhaust conduit; and a cooling passage between the exhaust conduit and the cooling jacket. The cooling passage guides flow of cooling liquid from upstream to downstream towards a location where the cooling liquid is mixed with exhaust in the exhaust conduit. First and second baffles are axially spaced apart and extend transversely with respect to the cooling passage so as to disperse the flow of cooling liquid at the location where the cooling liquid is mixed with the exhaust, thereby reducing reversion of cooling liquid in the exhaust conduit. At least one catalyst and at least one oxygen sensor are disposed in the exhaust conduit. The oxygen sensor is adjacent to and oriented parallel to a downstream face of the catalyst so that exhaust flows perpendicularly across the sensor.

Exhaust apparatus for decreasing reversion of cooling liquid in a marine propulsion system

A marine drive and marine exhaust pipe include a main exhaust flow chamber and an auxiliary idle relief chamber. The auxiliary idle relief chamber vents exhaust above the surface of the body of water in which the vessel is operating.

Marine exhaust system with idle relief chamber

An anti-ingestion system is provided for a marine drive with a submerged exhaust outlet. An anti-ingestion valve is operated by differential pressure thereacross to a closed condition when the engine is operating in an on state and cooling water is being pumped through a water conduit to an exhaust mixing point, with the anti-ingestion valve blocking passage of cooling water therepast in the noted closed condition. The anti-ingestion valve is operated by differential pressure thereacross to an open condition when the engine is in an off state, and permits passage of air therethrough and communicates atmospheric pressure through the water conduit to the exhaust mixing point to relieve vacuum in the exhaust system.

Growing community of inventors

Appleton, WI, United States of America

Mark J Glodowski