Patent · US Expired

Stress test rig for helicopter transmissions

US6393904B1 · kind B1 · utility

13Cited by

7References

20Claims

0Family size

Assignee

ZF Luftfahrttechnik GmbH · DE

Inventors

Herbert Krug · Ludwigshafen, DE
Detlef Brüggemann · Vellmar, DE
Willy Gerd Fischer · Vellmar, DE

Key dates

Filing date	Nov 3, 2000
Grant date	May 28, 2002
Priority date	—
Expiry date	Nov 3, 2020

Classification

Technology area (CPC G)Physics
CPC primaryG01M13/025
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The inventive stress test rig for helicopter transmission comprises a first test rig transmission (16) which is driven by a motor (38) and forms a closed stress circuit via shafts (4, 14, 54), connecting couplings (12) a stress mechanism (40, 42), a second test rig transmission (52) and a test transmission (2) having a rotor shaft (4) on the output side. To house the test transmission (2), it has a clamping plate (23) which by means of at least one actuator (22) can be rotated about the rotor shaft axis of the test transmission to compensate load-induced displacements at the connecting couplings (12) of the test transmission.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.