Electrically assisted hydraulic steering system

US11511841B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-11511841-B2
Application numberUS-202117197362-A
CountryUS
Kind codeB2
Filing dateMar 10, 2021
Priority dateMar 10, 2020
Publication dateNov 29, 2022
Grant dateNov 29, 2022

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A steering system for a marine craft includes a steering input shaft. The steering system also includes an electric power steering (EPS) system operatively coupled to the steering input shaft, the EPS system having an electric motor that drives rotation of a system output shaft. The steering system further includes a hydraulic pump operatively coupled to the system output shaft with a gear set, the hydraulic pump having a longitudinal direction that is perpendicular to a steering input shaft axis. The steering system yet further includes a fluid reservoir located remotely relative to the hydraulic pump.

First claim

Opening claim text (preview).

Having thus described the invention, it is claimed: 1. A steering system for a marine craft comprising: a steering input shaft; an electric power steering (EPS) system operatively coupled to the steering input shaft, the EPS system having an electric motor that drives rotation of a system output shaft; a hydraulic pump operatively coupled to the system output shaft with a gear set, the hydraulic pump having a longitudinal direction that is perpendicular to a steering input shaft axis; and a fluid reservoir located remotely relative to the hydraulic pump. 2. The steering system of claim 1 , wherein the motor output shaft is oriented perpendicularly to the steering input shaft. 3. The steering system of claim 1 , wherein the motor output shaft and the system output shaft are oriented perpendicularly relative to each other. 4. The steering system of claim 1 , wherein the pump case is oriented parallel to the electric motor. 5. The steering system of claim 1 , wherein the EPS system is in operative communication with a controller. 6. The steering system of claim 5 , further comprising a nut-piston assembly, wherein a nut of the nut-piston assembly is coupled to the system output shaft, wherein at least one end stop position of the nut-piston assembly is programmed into the controller. 7. The steering system of claim 5 , wherein the controller provides haptic feedback to the steering input shaft. 8. The steering system of claim 5 , wherein the controller provides one or more electronic indicators related to operation of the hydraulic pump.

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Frequently asked questions

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What does patent US11511841B2 cover?
A steering system for a marine craft includes a steering input shaft. The steering system also includes an electric power steering (EPS) system operatively coupled to the steering input shaft, the EPS system having an electric motor that drives rotation of a system output shaft. The steering system further includes a hydraulic pump operatively coupled to the system output shaft with a gear set,…
Who is the assignee on this patent?
Steering Solutions Ip Holding
What technology area does this patent fall under?
Primary CPC classification B63H25/24. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Nov 29 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).