US 10,864,783 B2Granted

Valve assembly for a tire inflation system

AssigneeDana Heavy Vehicle Systems Group, LLC

InventorsLucas A. Balistreri, Pheng Lee

Life of this patent

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Abstract

An assembly for a tire inflation system includes a valve assembly. The valve assembly includes a housing. The housing includes a base portion (56) and a cap portion (58). The base portion has a base perforation (90). The base perforation (90) is in fluid communication with a base cavity. The cap portion (58) is attached to the base portion (56). The cap portion (58) has a cap perforation (54) formed therein. The cap perforation (54) is in selective fluid communication with the base cavity. A piston (62) is disposed in the base cavity. A first area (A1) is defined by the base perforation (90), a second area (A2) is defined by the lateral area of a cylindrical space between the piston (62) and the cap portion (58), and a third area (A3) is defined by the cap perforation (54). The second area (A2) is greater than the first area (A1) and the third area (A3).

Claims17

Dependent claims

An assembly for a tire inflation system, comprising:

a valve assembly that includes:
a housing comprising a base portion and a cap portion, the base portion having a base perforation which is in fluid communication with a base cavity, wherein the cap portion is attached to the base portion and the cap portion has a cap perforation formed therein, the cap perforation in selective fluid communication with the base cavity, and
a piston disposed in the base cavity,
wherein a third area is a cross-sectional area defined by the cap perforation at a portion of the cap perforation that is cylindrical and has a substantially constant diameter,
wherein a second area is a cylindrical side area defined by a space between the piston and the cap portion when the piston is in an open position,
wherein a first area is a cross-sectional area defined by the base perforation at a portion of the base perforation that has a substantially constant diameter that is reduced relative to a remainder of the base perforation, and
wherein the second area is greater than the first area and the third area.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/073,178Filed 27 Jan 2017 · us provisional application
Priority: 29 Jan 2016
Published: US 2019/0047335 A114 Feb 2019
Granted: 15 Dec 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

B60C 23/00354
Comprising rotational joints between vehicle-mounted pressure sources and the tyres: details of valves
F16K 15/06
With guided rigid valve members: with guided stems
B60C 23/00363
Comprising rotational joints between vehicle-mounted pressure sources and the tyres: details of sealings
F16K 15/063
With guided stems: the valve being loaded by a spring

Family

Application62/288,933Us provisional application · filed 29 Jan 2016
US 2019/0047335 A1Pre-grant publication · published 14 Feb 2019
US 10,864,783 B2This patent

From the US filing history. Foreign family members aren’t listed.

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