SUPERCHARGER

• US 20100000498A1
• Filed: 07/03/2008
• Published: 01/07/2010
• Est. Priority Date: 07/03/2008
• Status: Active Grant

• Current Assignee: Vortech Engineering, Inc.
• Original Assignee: Vortech Engineering, Inc.
• Inventors: Shemenski, Matthew L., Middlebrook, James K., Reagan, Michael W.
• Granted Patent: US 8,028,524 B2
• Time in Patent Office: Days
• US Class Current: 123/559.1
• CPC Class Codes: F02B 33/40 of non-positive-displacement type
• CPC Class Codes: F02B 39/14 Lubrication of pumps; Safety measures therefor
• CPC Class Codes: F04D 25/04 the pump being fluid-driven pumps driven by exhaust gases F02B37/00, F02B39/00; turbochargers F02C6/12
• CPC Class Codes: F04D 29/063 specially adapted for elastic fluid pumps

Abstract

A supercharger for an internal combustion engine having an internal reservoir adapted to receive a supply of lubricating oil. An oil slinger is mounted on the impeller shaft for rotation therewith that extends into the reservoir for collecting and slinging lubricating oil onto the supercharger bearings, shafts and the drive and impeller gears. A baffle assembly is carried by the interior of the supercharger housing for controlling the volume and flow of lubricating oil onto said gears and bearings and directing oil flow therefrom back into said reservoir to prevent excessive lubrication buildup on the gears and the deleterious effects that result therefrom.

Claims

1. A supercharger for an internal combustion engine comprising a housing, a drive shaft, a drive gear mounted on the drive shaft, an impeller shaft disposed below said drive gear, an impeller gear mounted on the impeller shaft and engaging said drive gear, a plurality of bearing assemblies supporting said drive and impeller shafts, a fluid reservoir within said housing for holding a supply of lubricating oil therein, an oil slinger mounted on said impeller shaft and extending into said reservoir for collecting and slinging lubricating oil onto said bearings, shafts and gears, and a baffle assembly disposed within said housing, portions of said assembly being disposed proximate perimeter portions of said drive gear and said impeller gear for controlling the volume and flow of lubricating oil onto said gears, shafts and bearings and directing oil flow therefrom back into said reservoir.

2. The supercharger of claim 1 wherein said oil slinger comprises a disc, said disc being substantially adjacent to said impeller gear and one of said bearing assemblies and having at least one aperture therein for allowing lubricating oil to pass therethrough to effect lubrication of said one bearing assembly.

3. The supercharger of claim 1 wherein said baffle assembly comprises a plurality of upper baffles and at least one lower baffle, said upper baffles defining inclined walls extending at downward inclinations from opposed portions of said housing proximate lower perimeter portions of said drive gear and said lower baffle defining a curvilinear wall proximate a lower perimeter portion of said impeller gear, said walls stripping lubrication oil from said drive and impeller gears during rotation thereof.

4. The supercharger of claim 3 wherein said oil slinger comprises a disc, said disc being substantially adjacent said impeller gear and one of said bearing assemblies and having at least one aperture therein for allowing lubricating oil to pass therethrough to effect lubrication of said one bearing assembly.

5. The supercharger of claim 1 wherein said upper baffles are spaced approximately 1/16 in. from perimeter portions of said drive gear and said lower baffle is spaced approximately ⅛

in. from a lower perimeter portion of the impeller gear.

6. The supercharger of claim 5 wherein said baffle assembly comprises a pair of upper baffles and at least one lower baffle, said upper baffles defining inclined walls extending at downward inclinations from opposed portions of said housing proximate lower perimeter portions of said drive gear and said lower baffle defining a curvilinear wall proximate a lower perimeter portion of said impeller gear, said walls stripping lubrication oil from said drive and impeller gears during rotation thereof.

7. The supercharger of claim 6 wherein said upper baffles are spaced approximately 1/16 in. from perimeter portions of said drive gear and said lower baffle is spaced approximately ⅛

in. from a lower perimeter portion of the impeller gear.

8. The supercharger of claim 1 wherein said housing defines a gear case and a cover, said baffle assembly being integrally formed with said gear case.

9. The supercharger of claim 1 wherein a lower portion of said housing defines a plurality of arcuately spaced apertures therein communicating with said reservoir, each of said apertures being sealed with a removable plug whereby, depending upon the orientation of the supercharger with respect to a vertical axis, a lowermost of said apertures is defined for use in draining the reservoir.

10. The supercharger of claim 9 including a drain hose communicable with said lowermost of said apertures upon the removal of the plug therefrom.

11. The supercharger of claim 9 wherein said baffle assembly comprises a plurality of upper baffles and at least one lower baffle, said upper baffles defining inclined walls extending at downward inclinations from opposed portions of said housing proximate lower perimeter portions of said drive gear and said lower baffle defining a curvilinear wall proximate a lower perimeter portion of said impeller gear, said walls stripping lubrication oil from said drive and impeller gears during rotation thereof.

12. The supercharger of claim 11 including a drain hose communicable with said lowermost of said apertures upon the removal of the plug therefrom.

13. The supercharger of claim 1 wherein said housing defines a channel communicating with said reservoir and including a removable dipstick assembly comprising a vented closure for closing said channel and preventing a pressure buildup within said reservoir and a rod depending from said vented closure into said reservoir for measuring a lubrication oil level within said reservoir.

14. The supercharger of claim 1 wherein said housing defines first and second channels therein communicating with said reservoir and including a vented closure in said first channel preventing a pressure buildup within said reservoir and a removable dipstick assembly sealably closing said second channel for use in measuring a lubrication oil level within said reservoir.

15. The supercharger of claim 1 wherein said housing defines a pair of upper apertures therein and a plurality of arcuately spaced lower apertures therein, said upper and lower apertures communicating with said reservoir, each of said lower apertures being sealed with a removable plug whereby, depending upon the orientation of the supercharger with respect to a vertical axis, a lowermost and two remaining apertures are defined, said lowermost aperture defining a reservoir drainage aperture and one of remaining apertures and one of said upper apertures defining inlet and outlet openings for use with an external lubrication system.

16. The supercharger of claim 15 wherein said baffle assembly comprises a plurality of upper baffles and at least one lower baffle, said upper baffles defining inclined walls extending at downward inclinations from opposed portions of said housing proximate lower perimeter portions of said drive gear and said lower baffle defining a curvilinear wall proximate a lower perimeter portion of said impeller gear, said walls stripping lubrication oil from said drive and impeller gears during rotation thereof.

17. The supercharger of claim 16 wherein said oil slinger comprises a disc, said disc being substantially adjacent to said impeller gear and one of said bearing assemblies and having at least one aperture therein for allowing lubricating oil to pass therethrough to effect lubrication of said one bearing assembly.

18. The supercharger of claim 16 wherein said upper baffles are spaced approximately 1/16 in. from perimeter portions of said drive gear and said lower baffle is spaced approximately ⅛

in. from a lower perimeter portion of the impeller gear.

19. In a supercharger for an internal combustion engine having a housing, a drive shaft, a drive gear mounted on the drive shaft, an impeller shaft disposed below said drive gear, an impeller gear mounted on the impeller shaft and engaging said drive gear, a plurality of bearing assemblies supporting the drive and impeller shafts and a fluid reservoir within the housing for holding a supply of lubricating oil, the improvement comprising:

an oil slinger mounted on said impeller shaft and extending into said reservoir for collecting and slinging lubricating oil onto said bearings, shafts and gears; and

a baffle assembly disposed within the housing, portions of said assembly being disposed proximate perimeter portions of the drive gear and the impeller gear for controlling the volume and flow of lubricating oil onto said gears, shafts and bearings and directing oil flow therefrom back into said reservoir.

20. The improvement of claim 19 wherein said oil slinger comprises a disc having at least one aperture therein for allowing lubricating oil to pass therethrough to effect lubrication of a bearing assembly.

21. The improvement of claim 19 wherein said baffle assembly comprises a pair of upper baffles and at least one lower baffle, said upper baffles defining a pair of inclined walls extending at downward inclinations from opposed portions of said housing proximate lower perimeter portions of said drive gear and said lower baffle defining a curvilinear wall proximate a lower perimeter portion of said impeller gear, said walls stripping lubrication oil from said drive and impeller gears during rotation thereof.

22. The improvement of claim 21 wherein said oil slinger comprises a disc, said disc being substantially adjacent to said impeller gear and one of said bearing assemblies and having at least one aperture therein for allowing lubricating oil to pass therethrough to effect lubrication of said one bearing assembly.

23. The improvement of claim 19 wherein said upper baffles are spaced approximately 1/16 in. from perimeter portions of said drive gear and said lower baffle is spaced approximately ⅛

in. from a lower perimeter portion of the impeller gear.

24. The improvement of claim 19 wherein a lower portion of said housing defines a plurality of arcuately spaced apertures therein communicating with said reservoir, each of said apertures being sealed with a removable plug whereby, depending upon the orientation of the supercharger with respect to a vertical axis, a lowermost of said apertures is defined for use in draining the reservoir.

25. The supercharger of claim 24 including a drain hose communicable with said lowermost of said apertures upon the removal of the plug therefrom.

26. The improvement of claim 24 wherein said baffle assembly comprises a pair of upper baffles and at least one lower baffle, said upper baffles defining inclined walls extending at downward inclinations from opposed portions of said housing proximate lower perimeter portions of said drive gear and said lower baffle defining a curvilinear wall proximate a lower perimeter portion of said impeller gear, said walls stripping lubrication oil from said drive and impeller gears during rotation thereof.

27. The supercharger of claim 26 including a drain hose communicable with said lowermost of said apertures upon the removal of the plug therefrom.

28. The improvement of claim 19 wherein said housing defines a channel communicating with said reservoir and including a removable dipstick assembly comprising a vented closure for closing said channel and preventing a pressure buildup within said reservoir and a rod depending from said vented closure into said reservoir for measuring a lubrication oil level within said reservoir.

29. The improvement of claim 19 wherein said housing defines first and second channels therein communicating with said reservoir and including a vented closure in said first channel preventing a pressure buildup within said reservoir and a removable dipstick assembly sealably closing said second channel for use in measuring a lubrication oil level within said reservoir.

30. In a supercharger for an internal combustion engine having a housing, a drive shaft, a drive gear mounted on the drive shaft, an impeller shaft disposed below said drive gear, an impeller gear mounted on the impeller shaft and engaging said drive gear, a plurality of bearing assemblies supporting the drive and impeller shafts and a fluid reservoir within the housing for holding a supply of lubricating oil, the improvement comprising:

a disc mounted on said impeller shaft and extending into said reservoir for collecting and slinging lubricating oil onto said bearings, shafts and gears; and

a baffle assembly disposed within said housing for controlling the volume and flow of lubricating oil onto said gears, shafts and bearings and directing oil flow therefrom back into said reservoir, said baffle assembly comprising a pair of inclined walls extending at downward inclination from opposed portions of said housing proximate lower perimeter portions of said drive gear and a curvilinear wall portion proximate a lower perimeter portion of said impeller gear, said walls stripping lubrication oil from said drive and impeller gears during rotation thereof.

31. The improvement of claim 30 wherein said housing comprises a gear case and a cover, said walls in said baffle assembly projecting inwardly from said casing toward said cover.

32. In a supercharger for an internal combustion engine having a housing, a drive shaft, a drive gear mounted on the drive shaft, an impeller shaft disposed below said drive gear, an impeller gear mounted on the impeller shaft and engaging said drive gear, a plurality of bearing assemblies supporting the drive and impeller shafts and a fluid reservoir within the housing for holding a supply of lubricating oil, the improvement comprising:

a disc mounted on said impeller shaft and extending into said reservoir for collecting and slinging lubricating oil onto said bearings, shafts and gears; and

a baffle assembly disposed within said housing for controlling the volume and flow of lubricating oil onto said gears, shafts and bearings and directing oil flow therefrom back into said reservoir, said baffle assembly comprising an inclined wall extending inwardly at a downward inclination proximate a lower perimeter portion of said drive gear and a curvilinear wall proximate a lower perimeter portion of said impeller gear, said drive gear being adapted for rotation in a direction so as to pass upwardly along said inclined wall, said walls stripping lubrication oil from said drive and impeller gears during rotation thereof.

33. The improvement of claim 32 wherein said housing comprises a gear case and a cover, said walls in said baffle assembly projecting inwardly from said casing toward said cover.

34. The improvement of claim 32 wherein said inclined wall is spaced approximately 1/16 in. from perimeter portions of said drive gear and said curvilinear wall is spaced approximately ⅛

in. from a lower perimeter portion of the impeller gear.

35. The supercharger of claim 32 wherein said oil slinger comprises a disc, said disc being substantially adjacent to said impeller gear and one of said bearing assemblies and having at least one aperture therein for allowing lubricating oil to pass therethrough to effect lubrication of said one bearing assembly.

36. The supercharger of claim 33 wherein said oil slinger comprises a disc, said disc being substantially adjacent to said impeller gear and one of said bearing assemblies and having at least one aperture therein for allowing lubricating oil to pass therethrough to effect lubrication of said one bearing assembly.