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US 12,007,256 B2Granted
Magnet holder and stroke sensor with the magnet holder
AssigneeKNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
InventorStefano Rizzi
Life of this patent
Estimating the term…
Abstract
A magnet holder for a stroke sensor in which the stroke sensor comprises a magneto-resistive sensor with a magnet and is configured to sense a linear displacement of a plunger in a cylindrical body of a plunger/cylinder arrangement. The magnet holder includes a sleeve enveloping the plunger; a mounting for the magnet radially protruding from the sleeve; and a cover for closing the sleeve on one side comprising an opening for allowing the linear displacement of the plunger. The sleeve and the cover move relative to each other, when the plunger performs the linear displacement in the cylindrical body.
Claims13
A magnet holder and stroke sensor arrangement, comprising:
- a tubular/cylindrical sleeve for enveloping a plunger of the stroke sensor, wherein the stroke sensor includes a magneto-resistive sensor with a magnet and being configured to sense a linear displacement of the plunger in a cylindrical body of a plunger arrangement, wherein the plunger includes a broadened piston portion enveloped by the tubular/cylindrical sleeve and a rod portion protruding from the tubular/cylindrical sleeve;
- a mounting for the magnet, which radially protrudes from the tubular/cylindrical sleeve;
- and
- a cover for closing the tubular/cylindrical sleeve on one side including an opening for allowing the linear displacement of the plunger therethrough,
- wherein the tubular/cylindrical sleeve and the cover move relative to each other, when the plunger performs the linear displacement in the cylindrical body, wherein one or more sealing elements are formed between the cover and the plunger to provide a sealing during the linear motion.
2 more elements
A stroke sensor, comprising:
- a magneto-resistive sensor with a magnet to sense a linear displacement of a plunger in a cylindrical body of a plunger arrangement;
- and
- a magnet holder, including:
- a tubular/cylindrical sleeve for enveloping the plunger of the stroke sensor, wherein the plunger includes a broadened piston portion enveloped by the tubular/cylindrical sleeve and a rod portion protruding from the tubular/cylindrical sleeve;
- a mounting for the magnet, which radially protrudes from the tubular/cylindrical sleeve;
- and
- a cover for closing the tubular/cylindrical sleeve on one side, including an opening for allowing the linear displacement of the plunger therethrough;
- wherein the tubular/cylindrical sleeve and the cover move relative to each other, when the plunger performs the linear displacement in the cylindrical body, wherein one or more sealing elements are formed between the cover and the plunger to provide a sealing during the linear motion.
5 more elements
A plunger arrangement for a brake system of a vehicle, comprising:
- a plunger;
- a cylindrical body within which the plunger performs a linear displacement;
- and
- a stroke sensor to generate a sensor signal depending on the linear displacement;
- wherein the stroke sensor includes:
- a magneto-resistive sensor with a magnet to sense a linear displacement of a plunger in a cylindrical body of a plunger arrangement;
- and
- a magnet holder, including:
- a tubular/cylindrical sleeve for enveloping the plunger of the stroke sensor, wherein the plunger includes a broadened piston portion enveloped by the tubular/cylindrical sleeve and a rod portion protruding from the tubular/cylindrical sleeve;
- a mounting for the magnet, which radially protrudes from the tubular/cylindrical sleeve;
- and
- a cover for closing the tubular/cylindrical sleeve on one side, including an opening for allowing the linear displacement of the plunger therethrough;
- wherein the tubular/cylindrical sleeve and the cover move relative to each other, when the plunger performs the linear displacement in the cylindrical body, wherein one or more sealing elements are formed between the cover and the plunger to provide a sealing during the linear motion.
10 more elements
A vehicle, comprising:
- a plunger arrangement for a brake system of the vehicle, including:
- a plunger;
- a cylindrical body within which the plunger performs a linear displacement;
- and
- a stroke sensor to generate a sensor signal depending on the linear displacement;
- wherein the stroke sensor includes:
- a magneto-resistive sensor with a magnet to sense a linear displacement of a plunger in a cylindrical body of a plunger arrangement;
- and
- a magnet holder, including:
- a tubular/cylindrical sleeve for enveloping the plunger of the stroke sensor, wherein the plunger includes a broadened piston portion enveloped by the tubular/cylindrical sleeve and a rod portion protruding from the tubular/cylindrical sleeve;
- a mounting for the magnet, which radially protrudes from the tubular/cylindrical sleeve;
- and
- a cover for closing the tubular/cylindrical sleeve on one side, including an opening for allowing the linear displacement of the plunger therethrough;
- wherein the tubular/cylindrical sleeve and the cover move relative to each other, when the plunger performs the linear displacement in the cylindrical body, wherein one or more sealing elements are formed between the cover and the plunger to provide a sealing during the linear motion.
11 more elements
Dependencies are inferred from the claim text.