Title:
A WAX ACTUATOR AND A METHOD OF ACTUATING BY MEANS OF A WAX ACTUATOR
Document Type and Number:
WIPO Patent Application WO2008114185
Kind Code:
B1
Abstract:
The invention relates to a method of actuating by means of a wax actuator and to a wax actuator. The wax actuator (10, 100, 200) includes a wax expansion generator comprising a housing (12) defining a chamber (18) which is partially filled with wax (20.1 ) and partially filled with hydraulic fluid, the wax (20.1 ) and the hydraulic fluid being separated by at least one sealing interface (20.2, 202), and heating means (22) for heating the wax (20.1 ) to cause it to melt and expand. The wax actuator (10, 100, 200) further includes a hydraulic transmission device comprising a hydraulic line (38) in communication with the hydraulic fluid within the chamber (18) and a connector (40) at a downstream end of the hydraulic line (38) for use in connecting the hydraulic line (38) to a working object.
Inventors:
LOVEDAY PHILIP WAYNE (ZA)
LONG CRAIG STEPHEN (ZA)
LONG CRAIG STEPHEN (ZA)
Application Number:
PCT/IB2008/050958
Publication Date:
December 11, 2008
Filing Date:
March 14, 2008
Export Citation:
Assignee:
CSIR (ZA)
LOVEDAY PHILIP WAYNE (ZA)
LONG CRAIG STEPHEN (ZA)
LOVEDAY PHILIP WAYNE (ZA)
LONG CRAIG STEPHEN (ZA)
International Classes:
F15B21/06
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