System for supplying pressurized air to a vehicle tyre through the hub of the wheel

• US 20030217798A1
• Filed: 05/13/2003
• Published: 11/27/2003
• Est. Priority Date: 05/24/2002
• Status: Active Grant

• Current Assignee: SKF Industrie SPA (ABet SKF)
• Original Assignee: SKF Industrie SPA (ABet SKF)
• Inventors: Brunetti, Marco, Musso, Michele, Zavaglia, Luca, Ruetter, Andreas
• Granted Patent: US 6,955,201 B2
• Time in Patent Office: Days
• US Class Current: 152/417
• CPC Class Codes: B60C 23/00318 on the wheels or the hubs
• CPC Class Codes: B60C 23/00345 Details of the rotational joints

Abstract

A hollow suspension standard (20) of a vehicle equipped with a system for supplying pressurized air to a tyre through the hub of the wheel has an inner cavity (22) and a seat (21) for housing a wheel hub bearing unit (10). The standard (20) forms a first passage (23) for establishing fluid communication between the inner cavity (22) and the hub-bearing unit (10), and a second passage (24) establishing fluid communication between the inner cavity (22) and a source of pressurized air mounted on board of the vehicle.

Claims

1. A suspension standard for a vehicle equipped with a system for supplying pressurized air to a tyre through the hub of the wheel, of the type in which the standard (20) forms an inner cavity (22) and a seat (21) for housing a bearing unit (10) for the hub of the wheel, wherein the standard (20) forms at least a first passage (23) for establishing fluid communication between the inner cavity (22) and the hub-bearing unit (10), and a second passage (24) establishing fluid communication between the inner cavity (22) and a source of pressurized air mounted on board of the vehicle.

2. The suspension standard of claim 1, wherein said first passage (23) is formed between the inner cavity (22) and the seat (21) for the hub-bearing unit.

3. The suspension standard of claim 1, wherein the second passage (24) is formed at the side of the standard (20) facing the inside of the vehicle.

4. The suspension standard of claim 1, wherein the second passage (24) is formed in the upper part of the standard (20).

5. A system for supplying pressurized air to a vehicle tyre through the hub of a wheel, comprising:

a standard (20) with an inner cavity (22), a seat (21) for housing a bearing unit (10) for the hub of the wheel, at least a first passage (23) establishing fluid communication between the inner cavity (22) and the hub-bearing unit (10), and a second passage (24) establishing fluid communication between the inner cavity (22) and a source of pressurized air mounted on board of the vehicle;

a hub-bearing unit (10) mounted in said seat (21) and having passages (11a, 17, 19a) establishing fluid communication between said first passage (23) of the standard (20) and the wheel tyre.