Life Tests Results of a Controlled Pump Assembly for Application on S/C Cooling Loops

Format:

Conference/Event

Author/Creator:

Reusser, P. U., author.

Conference Name:

International Conference On Environmental Systems (1997-07-14 : Lake Tahoe, Nevada, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1997

Summary:

This paper presents life test data of two controlled pump assemblies continuously running since September 1993. The tests, running on FLUOROCARBON CCIF2 - CCIF2, are still in progress (Current date May 1997).One pump operates at the design point, the other one at 3 different RPM's.Reliability considerations lead to a novel, sensorless, brushless DC motor of very high reliability. Given is an outline of the extensive environmental test compaign and Micro-G tests, with results.Pump performance data taken prior and after the environmental tests, performances after 1 and 3 years of continuous operation are given and compared. Up to now, after 3 years of operation no pump degradation can be detected.A pre-runner of the above pumps, featuring the same bearing design is continuously running since November 1990 with no observable degradation

Notes:

Vendor supplied data

Publisher Number:

972351

Access Restriction:

Restricted for use by site license