Patent US7022163B2 successfully refreshed from Google Patents.
US7022163B2
Expired / Lapsed
US
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Method of treating air on board on a vehicle, and a device for use when performing the method
Assignee: Haldex Brake Products AB
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Filing: 2004-02-13
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Granted: 2006-04-04
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Expires: 2024-02-13
Abstract
Abstract In a vehicle air is compressed for being used in the brake system of the vehicle, for instance. In the compressor, used for the compression, the air is contaminated with oil and solid particles. In order to be relieved from these particles, before the air is conveyed through a drying filter, the compressed is brought to rotation by means of a rotating member in a centrifugal separator. The rotating member may advantageously include a pile of conical separation discs forming flow passages between each other for the compressed air to be cleaned. By means of an efficient cleaning of the compressed air from particles the life time of the drying filter may be increased.
Inventors
- 👤 Mats Olsson
- 👤 Mats-Örjan Pogén
- 👤 Ingvar Hällgren
- 👤 Roland Isaksson
- 👤 Stefan Szepessy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:25
CPC Classifications
B; B04; B04B; B04B5/00; B04B5/12; B01; B01D; B01D45/00; B01D45/12; B01D45/14; B60; B60T; B60T17/00; B60T17/02; B04B2005/125; Y; Y02; Y02A; Y02A50/00; Y02A50/20; Y02A50/2351; Y10; Y10S; Y10S55/00; Y10S55/17
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
120 words
A method of treating air on board on a vehicle, before the air is used in compressed form in the vehicle, wherein the air in a first step is compressed by means of a compressor, which for the purpose of its operation is supplied with lubricating oil, thereafter is conveyed through a particle separator, and finally relieved from vaporised water by means of a filter, wherein, the compressed air in said particle separator is relieved from lubricating oil accompanying the air from the compressor by being rotated in a separation chamber by means of a rotating member, said rotating member comprising separation discs that form a plurality of interspaces through which said compressed air relieved from said particles is conveyed.
Claim 2
Independent Claim
120 words
A method of treating air on board on a vehicle, before the air is used in compressed form in the vehicle, wherein the air in a first step is compressed by means of a compressor, which for the purpose of its operation is supplied with lubricating oil, thereafter is conveyed through a particle separator, and finally relieved from vaporised water by means of a filter, wherein, the compressed air in said particle separator is relieved from lubricating oil accompanying the air from the compressor by being rotated in a separation chamber by means of a rotating member, said rotating member comprising separation discs that form a plurality of interspaces through which said compressed air relieved from said particles is conveyed.
Claim 3
Dependent Claim
67 words
A method according to claim 1 , wherein the rotating member is kept in a rotating state in a space surrounded by stationary walls, in which an overatmospheric pressure is maintained and which is arranged to collect particles, that has been separated from the compressed air, wherein the collected particles are conveyed out of said space via a particle outlet while maintaining compressed air in the space.
Claim 4
Dependent Claim
21 words
A method according to claim 2 , wherein the collected particles are conveyed from said space via an intermittently openable valve.
Claim 5
Dependent Claim
35 words
A method according to claim 1 , wherein compressed air, to be relieved from particles, is conveyed through at least one chamber, which is delimited within the rotating member and which constitutes said separation chamber.
Claim 6
Dependent Claim
70 words
A method according to claim 4 , wherein the rotating member is kept in a rotating state in a space, which is surrounded by stationary walls and in which an overatmospheric pressure is maintained, and compressed air, which has been relieved from particles in the separation chamber, is conveyed from the separation chamber to a non-rotating receiving vessel without being brought to flow through said space around the rotating member.
Claim 7
Dependent Claim
49 words
A method according to claim 5 , wherein particles, which have been separated from compressed air in the separation chamber, are conveyed out from the chamber to said space around the rotating member and out from this space through a particle outlet while maintaining compressed air in the space.
Claim 8
Dependent Claim
20 words
A method according to claim 6 , wherein the particles are conveyed from said space via an intermittently openable valve.
Claim 9
Dependent Claim
61 words
A method according to claim 4 , wherein the rotating member is kept in a rotating state in a space surrounded by stationary walls, in which an overatmospheric pressure is maintained, and compressed air, which has been relieved from particles in the separation chamber, is conveyed from the chamber to said space and out from this space through an air outlet.
Claim 10
Dependent Claim
44 words
A method according to claim 8 , wherein particles, which have been separated from compressed air in the separation chamber, are conveyed from the chamber to said space and out from this space through a particle outlet while maintaining compressed air in the space.
Claim 11
Dependent Claim
20 words
A method according to claim 9 , wherein the particles are conveyed from said space via an intermittently openable valve.
Claim 12
Dependent Claim
33 words
A method according to claim 4 , wherein said separation disks are conical in shape and stacked coaxially on each other, said separation disks constituting at least a part of the rotating member.
Claim 13
Dependent Claim
31 words
A method according to claim 11 , wherein the compressed air is brought to flow through said interspaces in a direction away from the rotary axis (R) of the rotating member.
Claim 14
Dependent Claim
57 words
A method according to claim 12 , wherein the rotating member is kept in a rotating state in a space surrounded by stationary walls and that the compressed air is conveyed into a central position in the rotating member, further conveyed through said interspaces and thereafter is conveyed out and into said space around the rotating member.
Claim 15
Dependent Claim
146 words
A device for use when performing the method according to claim 8 for cleaning compressed air on board on a vehicle from suspended particles, solid and/or liquid, therein, wherein the device includes a stationary housing, a centrifuge rotor rotatable in the housing and an electrical motor for rotating the centrifuge rotor around a rotary axis (R), wherein the centrifuge rotor is journalled in the housing via bearings located at merely two bearing locations at an axial distance from each other and wherein the centrifuge rotor comprises a plurality of separation disks that delimit a plurality of passages for through flow of the compressed air to be cleaned, and wherein the electrical motor includes a stator, which is connected to the housing, a rotor, which is constituted by a part of said centrifuge rotor and which is journalled in relation to the stator merely via said bearings.
Claim 16
Dependent Claim
25 words
A device according to claim 14 , wherein at least the main part of the centrifuge rotor is provided axially between said two bearing locations.
Claim 17
Dependent Claim
41 words
A device according to claim 15 , wherein the rotor of the electrical motor is located on one side and at least the main part of the centrifuge rotor is located on the other side of one of said bearing locations.
Claim 18
Dependent Claim
22 words
A device according to claim 14 , wherein the centrifuge rotor is journalled for rotation around a substantially vertical rotary axis (R).
Claim 19
Dependent Claim
34 words
A device according to claim 14 , wherein the centrifuge rotor includes a stack of separation disks, each of said disks being conical in shape and being arranged coaxially with said rotary axis (R).
Claim 20
Dependent Claim
20 words
A device according to claim 14 , wherein said bearings at both the bearing locations are provided within the housing.
Claim 21
Dependent Claim
21 words
A device according to claim 14 , wherein said bearings as well as said electrical motor are provided within the housing.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2009-04-03 | 2009-10-03 | 2010-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2013-04-03 | 2013-10-03 | 2014-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2017-04-03 | 2017-10-03 | 2018-04-04 | $7700.00 | Window Closed / Lapsed |