IP Library Granted Patent US 8,863,889
Granted Patent B2
US 8,863,889 · App. 13/658,241 · Granted Oct 21, 2014

Steering system in a vehicle

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Quick Facts
Patent No.
US 8,863,889
App. No.
13/658,241
Granted
Oct 21, 2014
Kind
B2
Abstract

A steering system in a vehicle comprises an electrical servo motor for generating a supporting servo torque, wherein the motor shaft of the servo motor is coupled to a motion-transmitting component of the steering system. A water protection shield enclosing the motor shaft is disposed between the motor housing of the servo motor and the motion-transmitting component.

Claims (16)

1. A steering system in a vehicle, comprising:

an electrical servo motor for generating a supporting servo torque, a motor shaft of the servo motor being coupled to a motion-transmitting component of the steering system, and

a water protection shield enclosing the motor shaft is disposed between a motor housing of the servo motor and the motion-transmitting component; and

wherein the water protection shield covers at least one venting bore in the motor housing.

2. A steering system according to claim 1 , wherein a control electronics unit for controlling the servo motor is disposed on the motor housing.

3. The steering system according to claim 2 , wherein the control electronics unit is disposed on the side of the motor housing facing away from the water protection shield.

4. A steering system according to claim 1 , wherein the motor shaft is coupled to a component of the steering system via a transmission belt.

5. A steering system according to claim 1 , wherein at least one component of the water protection shield is designed as a plastic part.

6. A steering system according to claim 1 , wherein at least one component of the water protection shield is designed as a sheet metal part.

7. A steering system in a vehicle, comprising:

an electrical servo motor for generating a supporting servo torque, a motor shaft of the servo motor being coupled to a motion-transmitting component of the steering system; and

a water protection shield enclosing the motor shaft is disposed between a motor housing of the servo motor and the motion-transmitting component; and

wherein at least one component of the water protection shield is disposed non-rotatably on the motor shaft;

wherein at least one component of the water protection shield is rigidly connected to the motor shaft;

wherein the components of the water protection shield on the motor shaft or on the motor housing cooperate in a manner of a labyrinth seal; and

wherein the water protection shield covers at least one venting bore in the motor housing.

Assignments (2)
CHANGE OF NAME Recorded May 21, 2015
From: ZF LENKSYSTEME GMBH
To: ROBERT BOSCH AUTOMOTIVE STEERING GMBH
Reel/Frame 035749/0293 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 2, 2013
From: WALZ, STEFAN; POETZL, THOMAS; LACHENMAIER, ARMIN
To: ZF LENKSYSTEME GMBH
Reel/Frame 029552/0291 →