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Traction drive for cryogenic boost pump. [hydrogen oxygen rocket engines
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Connelly, R. E. Meyer, S. |
| Copyright Year | 1981 |
| Description | Two versions of a Nasvytis multiroller traction drive were tested in liquid oxygen for possible application as cryogenic boost pump speed reduction drives for advanced hydrogen-oxygen rocket engines. The roller drive, with a 10.8:1 reduction ratio, was successfully run at up to 70,000 rpm input speed and up to 14.9 kW (20 hp) input power level. Three drive assemblies were tested for a total of about three hours of which approximately one hour was at nominal full speed and full power conditions. Peak efficiency of 60 percent was determined. There was no evidence of slippage between rollers for any of the conditions tested. The ball drive, a version using balls instead of one row of rollers, and having a 3.25:1 reduction ratio, failed to perform satisfactorily. |
| File Size | 6068484 |
| Page Count | 28 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19810014655 |
| Archival Resource Key | ark:/13960/t1ng9g88f |
| Language | English |
| Publisher Date | 1981-03-01 |
| Access Restriction | Open |
| Subject Keyword | Spacecraft Propulsion And Power Performance Tests Cryogenic Equipment Rollers Pumps Inlet Pressure Sliding Hydrogen Oxygen Engines Balls Engine Parts Mechanical Drives Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
