Oil separator

• US 6,858,056 B2
• Filed: 09/27/2002
• Issued: 02/22/2005
• Est. Priority Date: 09/28/2001
• Status: Expired due to Fees

• Current Assignee: Rolls-Royce Deutschland Limited & Company KG (Rolls-Royce Holdings Plc)
• Original Assignee: Rolls-Royce Deutschland Limited & Company KG (Rolls-Royce Holdings Plc)
• Inventors: Kwan, Williams Ching-To
• Primary Examiner(s): GREENE, JASON M
• Application Number:
  US10/256,131
• Publication Number:
  US 20030089656A1
• Time in Patent Office: 879 Days
• Field of Search: 952/77, 554/00, 554/01, 554/06, 554/08, 554/09
• US Class Current: 55/400
• CPC Class Codes: B01D 45/14 generated by rotating vanes, discs, drums or brushes
• CPC Class Codes: B01D 46/003 including coalescing means for the separation of liquid
• CPC Class Codes: B01D 46/0056 with rotational movement
• CPC Class Codes: B01D 46/026 Means for maintaining a space between filters, e.g. avoiding contact between adjacent filters
• CPC Class Codes: B01D 46/12 in multiple arrangements
• CPC Class Codes: F01M 13/04 having means for purifying air before leaving crankcase, e.g. removing oil
• CPC Class Codes: F01M 2013/0422 Separating oil and gas with a centrifuge device
• CPC Class Codes: F16N 39/002 by deaeration degasification of liquids B01D19/00

Abstract

An oil separator includes a casing 1 and a rotor 2, said rotor being arranged rotatably within said casing and having a flow chamber 3 through which oil-laden air 4 can pass, with porous material being arranged in the flow chamber 3. At least one unit of porous material is arranged in the flow chamber 3 which includes outer layers of a porous metal 6 and an interlaid layer 7 comprising fibre material.

Claims

1. An oil separator, including:

a casing,

a rotor, said rotor being rotatably mounted within said casing and including a flow chamber through which oil-laden air can flow, and

a porous material through which the oil-laden air can flow positioned in the flow chamber, the porous material comprising an outer layer comprising a porous metal and an inner layer comprising a fiber materials,

wherein the layer comprising fiber material is enclosed by the porous metal at its axial sides and at its radially outer side.

2. An oil separator in accordance with claim 1, wherein the layer comprising fibre material is enclosed in a grid form intermediate casing.

3. An oil separator in accordance with claim 2, wherein the layer comprising fiber material includes at least one axial spacing element.

4. An oil separator in accordance with claim 3, wherein the layer comprising fiber material includes at least one radial supporting element.

5. An oil separator in accordance with claim 4, wherein the supporting element is in the form of a gauze meshwork.

6. An oil separator, including:

a casing,

a rotor, said rotor being rotatably mounted within said casing and including a flow chamber through which oil-laden air can flow, and

a porous material through which the oil-laden air can flow positioned in the flow chamber, the porous material comprising an outer layer comprising a porous metal and an inner layer comprising a fiber material,

wherein the layer comprising fiber material is enclosed in a grid form intermediate casing.

7. An oil separator, including:

a casing,

a rotor, said rotor being rotatably mounted within said casing and including a flow chamber through which oil-laden air can flow, and

a porous material through which the oil-laden air can flow positioned in the flow chamber, the porous material comprising an outer layer comprising a porous metal and an inner layer comprising a fiber material,

wherein the layer comprising fiber material includes at least one axial spacing element.

8. An oil separator in accordance with claim 7, wherein the layer comprising fiber material includes at least one radial supporting element.

9. An oil separator in accordance with claim 8, wherein the supporting element is in the form of a gauze meshwork.

10. An oil separator, including:

a casing,

a rotor, said rotor being rotatably mounted within said casing and including a flow chamber through which oil-laden air can flow, and

a porous material through which the oil-laden air can flow positioned in the flow chamber, the porous material comprising an outer layer comprising a porous metal and an inner layer comprising a fiber material,

wherein the layer comprising fiber material includes at least one radial supporting element.

11. An oil separator, including:

a casing,

a rotor, said rotor being rotatably mounted within said casing and including a first flow chamber through which oil-laden air can flow,

a first porous material through which the oil-laden air can flow positioned in the first flow chamber, the porous material comprising a porous metal,

a second flow chamber through which the oil-laden air can flow positioned downstream of the first flow chamber, the second flow chamber being connected to the casing, and

a layer comprising a fibre material through which the oil-laden air can flow positioned in the second flow chamber.

12. An oil separator in accordance with claim 11, wherein the layer comprising fiber material is enclosed in a grid form intermediate casing.

13. An oil separator in accordance with claim 12, wherein the layer comprising fiber material includes at least one axial spacing element.

14. An oil separator in accordance with claim 13, wherein the layer comprising fiber material includes at least one radial supporting element.

15. An oil separator in accordance with claim 14, wherein the supporting element is in the form of a gauze meshwork.

16. An oil separator in accordance with claim 11, wherein the layer comprising fiber material includes at least one axial spacing element.

17. An oil separator in accordance with claim 16, wherein the layer comprising fiber material includes at least one radial supporting element.

18. An oil separator in accordance with claim 17, wherein the supporting element is in the form of a gauze meshwork.

19. An oil separator in accordance with claim 11, wherein the layer comprising fiber material includes at least one radial supporting element.