NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
Study of lubricant jet flow phenomena in spur gearsLubricant jet flow impingement and penetration depth into a gear tooth space were measured at 4920 and 2560 rpm using a 8.89 cm (3.5 inch) pitch diameter 8 pitch spur gear at oil pressures from 70,000 to 410,000 n/sqm (10 psi to 60 psi). A high speed motion picture camera was used with xenon and high speed stroboscopic lights to slow down and stop the motion of the oil jet. An analytical model was developed for the vectorial impingement dept and for the impingement depth with tooth space windage effects included. The windage effects for oil drop size greater than .0076 cm (.003 inches). The analytical impingement dept compared favorably with experimental results above an oil jet pressure of 70,000 n/sqm (10psi). There was further penetration into the tooth space after impingement, but much of this oil was thrown out of the tooth space without further contacting the gear teeth.
Document ID
19740019797
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Akin, L. S. (GE Cleveland, OH, United States)
Townsend, D. P. (NASA Lewis Research Center)
Mross, J. J. (GE)
Date Acquired
September 3, 2013
Publication Date
January 1, 1974
Subject Category
Machine Elements And Processes
Report/Patent Number
NASA-TM-X-71572
E-8012
Meeting Information
Meeting: lubrication Conf.
Location: Montreal
Start Date: October 8, 1974
End Date: October 10, 1974
Sponsors: ASME, Am. Soc. of Lubrication Engr.
Accession Number
74N27910
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Related Records

There are no records associated with this record.
No Preview Available