COVER FOR OIL FILTER HOUSING OF AN INTEGRATED DRIVE GENERATOR

Abstract

A cover for an oil filter housing is disclosed comprising an elongated body defining an upper end portion and an lower end portion, and having a central axis extending therethrough, which delineates an axial length of the body, wherein an axial bore extends through the body of the cover from the lower end portion thereof to an interior end wall in the upper end portion thereof for accommodating an axial portion of an oil filter located within the housing, the axial bore of the body having an axial length that is about 90% to about 94% of the axial length of the body.

Claims

1. A cover for an oil filter housing, comprising: an elongated body defining an upper end portion and an lower end portion, and having a central axis extending therethrough, which delineates an axial length of the body, wherein an axial bore extends through the body of the cover from the lower end portion thereof to an interior end wall in the upper end portion thereof for accommodating an axial end portion of an oil filter located within the housing, the axial bore of the body having an axial length that is greater than 85% of the axial length of the body.

2. A cover as recited in claim 1, wherein the axial length of the bore is about 90% to about 94% of the axial length of the body

3. A cover as recited in claim 1, wherein the axial length of the bore is about 1.56 inches to about 1.59 inches

4. A cover as recited in claim 1, wherein the axial length of the body is about 1.69 inches to about 1.72 inches.

5. A cover as recited in claim 1, wherein the axial bore has a diameter of about 1.81 inches.

6. A cover as recited in claim 1, wherein the body is formed from 2024 aluminum alloy.

7. A cover as recited in claim 1, wherein the upper end portion of the body has a hexagonal engagement surface formed thereon.

8. A cover for an oil filter housing, comprising: an elongated body defining an upper end portion and an lower end portion, and having a central axis extending therethrough, which delineates an axial length of the body, wherein an axial bore extends through the body of the cover from the lower end portion thereof to an interior end wall in the upper end portion thereof for accommodating an axial portion of an oil filter located within the housing, the axial bore of the body having an axial length that is about 90% to about 94% of the axial length of the body.

9. A cover as recited in claim 8, wherein the axial length of the bore is about 1.56 inches to about 1.59 inches

10. A cover as recited in claim 8, wherein the axial length of the body is about about 1.69 inches to about 1.72 inches.

11. A cover as recited in claim 8, wherein the axial bore has a diameter of about 1.81 inches.

12. A cover as recited in claim 8, wherein the body is formed from 2024 aluminum alloy.

13. A cover as recited in claim 8, wherein the upper end portion of the body has a hexagonal engagement surface formed thereon.

14. A cover for an oil filter housing, comprising: an elongated body formed from an aluminum alloy and defining an upper end portion and an lower end portion, and having a central axis extending therethrough, wherein an axial bore extends through the body of the cover from the lower end portion thereof to an interior end wall in the upper end portion thereof for accommodating an axial portion of an oil filter located within the housing, the body having an axial length of about 1.69 inches to about 1.72 inches, and the axial bore having an axial length of about 1.56 inches to about 1.59 inches and a diameter of about 1.81 inches.

15. A cover as recited in claim 14, wherein the body is formed from 2024 aluminum alloy.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0012] So that those having ordinary skill in the art will readily understand how to make and use the subject invention without undue experimentation, preferred embodiments thereof will be described in detail herein below with reference to the figures wherein:

[0013] FIG. 1 is an illustration of an Integrated Drive Generator (IDG) coupled to a gas turbine engine and having an oil filter housing that includes the cover of the subject invention;

[0014] FIG. 2 is a perspective view of the cover of the subject invention and the elongated oil filter cartridge removed from the filter housing of the IDG;

[0015] FIG. 3 is a side elevational view of the perspective view of the cover shown in FIGS. 1 and 2;

[0016] FIG. 4 is a top plan view of the cover;

[0017] FIG. 5 is a cross-sectional view of the cover taken along line 5-5 of FIG. 4;

[0018] FIG. 6 is an enlarged localized view of a medial flange portion of the cover taken from FIG. 3; and

[0019] FIG. 7 is an enlarged localized cross-sectional view taken along line 7-7 of FIG. 1 illustrating the elongated oil filter within the housing enclosed by the cover of the subject invention, and showing the path of fluid flow through the oil filter.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] Referring now to the drawings wherein like reference numerals identify similar structural features, there is illustrated in FIG. 1 an Integrated Drive Generator (IDG) 10 coupled to a gas turbine engine 12 that employs the new and useful cover 14 of the subject invention. More particularly, as shown in FIG. 2, the cover 14 is designed to accommodate an elongated radially pleated oil filter cartridge 16 that has a greater axial length than the filter housing 18 within which it is accommodated, while remaining within the spatial constraints that permit ready access to and removal of the cover 14 and oil filter cartridge 16 from the housing 18 of the IDG 10 for routine maintenance purposes.

[0021] Referring to FIGS. 3 through 6, the cover 14 includes an elongated body 20 defining a central longitudinal axis (L.sub.Axis) and having an upper end portion 22, a lower end portion 24 and a medial abutment flange 26 that surrounds the periphery of the body 20. The body 20 of cover 14 is preferably formed from 2024 aluminum alloy or a similar material.

[0022] The central longitudinal axis L.sub.Axis of the body 20 delineates an axial length (L.sub.Body) of the body 20. More particularly, as shown in FIG. 5, the axial length L.sub.Body of the body 20 of cover 14 is about 1.69 inches to about 1.72 inches. As best seen in FIG. 4, the upper end portion 22 of the body 20 of cover 14 has a hexagonal engagement surface 28 formed thereon for installing the cover 14 on the housing 18 and for removing the cover 14 from the housing 18 using a hand tool.

[0023] The lower end portion 24 of the body 20 of cover 14 has a helical thread formation with a standard pitch for threadably engaging the housing 18, as best seen in FIG. 3. The medial abutment flange 26 of the body 20 of cover 14 is best seen in FIG. 6. It is adapted and configured to abut against the outer edge surface of the filter housing 18 of the IDG 10 when the cover 14 is threadably engaged to the housing 18, as best seen in FIG. 7

[0024] Referring to FIG. 5, the body 20 of the cover 14 has axial bore 30 that extends through the body 20 from the lower end portion 24 to an interior end wall 32 in the upper end portion 22 for accommodating an axial end portion of the oil filter cartridge 16 located within the housing 14. The axial bore 30 of body 20 has an axial length (L.sub.Bore) of and an inner diameter D.sub.Bore. The axial length L.sub.Bore of the bore 30 is about 1.57 inches to about 1.58 inches and the inner diameter D.sub.Bore of the bore 30 is about 1.81 inches.

[0025] In accordance with a preferred embodiment of the subject invention, the axial length L.sub.Bore of the bore 30 of body 20 is greater than 85% of the axial length L.sub.Body of the body 20. More preferably, the axial length L.sub.Bore of the bore 30 of body 20 is about 90% to about 94% of the axial length L.sub.Body of the body 20. In sum, in an exemplary embodiment of the cover 14, the axial length L.sub.Bore of the bore 30 of body 20 is about 1.56 inches to about 1.59 inches, and the axial length L.sub.Body of the body 20 is about 1.69 inches to about 1.72 inches.

[0026] Referring now to FIG. 7, when the oil filter 16 is installed in the housing 18 of the IDG 10, the end portion of the oil filter 16 advantageously fits within the axial bore 30 of the body 20 of the cover 14. Moreover, when the end portion of the oil filter 16 is within the axial bore 30 of the body 20 of cover 14, it extends beyond the housing 18, within the cover 14. This enables the oil filter 16 to have a greater axial length than the filter housing 18 within which it is accommodated. As a result, the dirt holding capacity and operational life of the oil filter 16 can be optimized, while the cover 14 remains within the spatial constraints that permit ready access to and removal of the cover 14 and oil filter 16 from the housing 18 of IDG 10 for routine maintenance purposes.

[0027] While the subject disclosure has been shown and described with reference to preferred embodiments, those skilled in the art will readily appreciate that changes and/or modifications may be made thereto without departing from the scope of the subject disclosure.