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U.S. Department of Energy
Office of Scientific and Technical Information

Microfabricated microengine with constant rotation rate

Patent ·
OSTI ID:872529

A microengine uses two synchronized linear actuators as a power source and converts oscillatory motion from the actuators into constant rotational motion via direct linkage connection to an output gear or wheel. The microengine provides output in the form of a continuously rotating output gear that is capable of delivering drive torque at a constant rotation to a micromechanism. The output gear can have gear teeth on its outer perimeter for directly contacting a micromechanism requiring mechanical power. The gear is retained by a retaining means which allows said gear to rotate freely. The microengine is microfabricated of polysilicon on one wafer using surface micromachining batch fabrication.

Research Organization:
SANDIA CORP
DOE Contract Number:
AC04-94AL85000
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Number(s):
US 5955801
OSTI ID:
872529
Country of Publication:
United States
Language:
English

References (1)

Friction and wear in microfabricated harmonic side-drive motors conference January 1990