Arrangement for filling air into a rotating pneumatic tire

• US 7,225,845 B2
• Filed: 01/31/2006
• Issued: 06/05/2007
• Est. Priority Date: 08/01/2003
• Status: Expired due to Fees

• Current Assignee: Bayerische Motoren Werke AG
• Original Assignee: Bayerische Motoren Werke AG
• Inventors: Ellmann, Manfred
• Primary Examiner(s): Bellinger; Jason R.
• Application Number:
  US11/342,819
• Publication Number:
  US 20060118224A1
• Time in Patent Office: 490 Days
• Field of Search: 152/415, 152418-419, 152423-426
• US Class Current: 152/426
• CPC Class Codes: B60C 23/123 Elongate peristaltic pumps
• CPC Class Codes: B60C 23/135 activated due to tyre deformation

Abstract

A hose-type structure is arranged essentially between the tire and the rim, which structure is connected at the end side with the environment and, by way of a valve, with the interior of the tire. The hose-type structure fills the tire during its rotating movement, and is locally squeezed from the environment side toward the tire interior, in which case the hose-type structure is provided in the area between the tire and the rim flange. A duct is provided in the rim flange or in the tire in the area of its bead chamfer, and at least partially receives the hose-type structure in the form of a hose. The geometry of the duct and of the hose-type structure is selected such that this air-conveying squeezing essentially takes place only as long as the internal tire pressure is below a desired value.

Claims

1. An arrangement for filling air into a pneumatic tire, the arrangement comprising:

a pneumatic tire arranged on a rim, both of which rotate together; and

a hose-type structure, arranged between the tire and a rim flange of the rim, the hose-type structure includes a first side connected with the environment and a second side connected with an interior of the pneumatic tire, wherein the first and second sides are connected by a valve, and the hose-type structure is locally squeezed from the first side toward the second side during rotating movements of the tire in order to fill the tire.

2. The arrangement according to claim 1, further comprising:

a duct provided in the rim flange, wherein the hose-type structure is partially situated in the duct.

3. The arrangement according to claim 1, wherein a hollow duct forming the hose-type structure and describing a closed cross-section is shaped into the tire in an area of its bead or bead chamfer.

4. The arrangement according to claim 1, further comprising:

a duct provided in the tire in an area of its bead chamfer, wherein the duct at least partially receives the hose-type structure in the form of a hose.

5. The arrangement according to claim 2, wherein a geometry of the duct and of the hose-type structure is selected such, that the local squeezing takes place essentially only as long as the internal tire pressure is below a desired value.

6. The arrangement according to claim 1, wherein the hose-type structure includes a filter on the first side.

7. The arrangement according to claim 1, wherein the valve is a check valve.