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US 10,239,598 B2Granted
Cooling system for an outboard motor having a hydraulic shift mechanism
AssigneeBrunswick Corporation
InventorWayne M. Jaszewski
Life of this patent
Estimating the term…
Abstract
An outboard motor having an internal combustion engine that causes rotation of a driveshaft, a planetary transmission that operatively connects the driveshaft to a transmission output shaft, a band brake configured to shift the planetary transmission amongst a forward gear, neutral gear and reverse gear, a hydraulic actuator is configured to actuate the band brake, and a cooling water circuit that extends adjacent to the hydraulic actuator so that the hydraulic actuator exchanges heat with cooling water in the cooling water circuit.
Claims20
A propulsion device comprising:
- an internal combustion engine and a driveshaft that is caused to rotate by the internal combustion engine;
- a transmission and a transmission output shaft, wherein the transmission operably connects the driveshaft and the transmission output shaft;
- a hydraulic actuator that is configured to cause the transmission to shift into at least a forward gear and a neutral gear, wherein the hydraulic actuator comprises a hydraulic core passage that communicates a hydraulic fluid;
- and
- a cooling water circuit that conveys cooling water to the internal combustion engine, wherein the cooling water circuit further comprises a cooling passage that is separated from the hydraulic core passage by a common wall such that the hydraulic actuator exchanges heat with the cooling water.
2 more elements
A propulsion device comprising:
- an internal combustion engine and a driveshaft that is caused to rotate by the internal combustion engine;
- a transmission and a transmission output shaft, wherein the transmission operably connects the driveshaft and the transmission output shaft;
- a hydraulic actuator that is configured to cause the transmission to shift into at least a forward gear and a neutral gear, wherein the hydraulic actuator comprises a hydraulic core passage that communicates a hydraulic fluid;
- and
- a cooling water circuit that conveys cooling water to the internal combustion engine, wherein the cooling water circuit further comprises a cooling passage that conveys the cooling water adjacent to the hydraulic core passage such that the hydraulic fluid exchanges heat with the cooling water.
2 more elements
Dependencies are inferred from the claim text.