Title:
SINGLE ROTOR MODEL HELICOPTER WITH IMPROVED STABILITY BEHAVIOR
Document Type and Number:
WIPO Patent Application WO/2009/062407
Kind Code:
A1
Abstract:
A single rotor model helicopter is provided, comprising a spindle, a rotor head
provided on the spindle, a pair of rotor blades mounting on the rotor head and a
pair of hybrid control rocker arms. Said helicopter further includes an operating
system and a stabilizing system. The pair of hybrid control rocker arms are set
on the both sides of the rotor head respectively and rotatably connected with
the pitch control rocker arm through the hole located on the center of the hybrid
control rocker arm in order to control the attack angles of the rotor blades, wherein
the pitch control rocker arms are also provided on the both sides of the rotor head.
Each hybrid control rocker arm has two control points. The first pair of control
points diagonally opposite provided on the pair of hybrid control rocker arms
are controlled by the cyclic torque transmitted from the operating system, and
the second pair of control points diagonally opposite provided are controlled
by the stabilizing system. Furthermore, the second control points controlled
by the stabilizing system and the first control points controlled by the swash
plate can move about a fulcrum. Present invention can separately adjust the operating
sensitivity and stability, thereby find the optimum combination of dynamic
stability and maneuverability of the model helicopter.
Inventors:
HUANG GUOSHU (CN)
WU YUCHEN (CN)
YU YIZHEN (CN)
DING HUANZHONG (CN)
WU YUCHEN (CN)
YU YIZHEN (CN)
DING HUANZHONG (CN)
Application Number:
PCT/CN2008/071129
Publication Date:
May 22, 2009
Filing Date:
May 29, 2008
Export Citation:
Assignee:
SHANGHAI NINE EAGLES ELECTRONI (CN)
HUANG GUOSHU (CN)
WU YUCHEN (CN)
YU YIZHEN (CN)
DING HUANZHONG (CN)
HUANG GUOSHU (CN)
WU YUCHEN (CN)
YU YIZHEN (CN)
DING HUANZHONG (CN)
International Classes:
A63H27/133; B64C27/625
Foreign References:
| CN2889427Y | 2007-04-18 | |||
| DE20007283U1 | 2001-04-12 | |||
| CN1533819A | 2004-10-06 | |||
| DE19524793A1 | 1996-08-22 | |||
| EP2172396A1 | 2010-04-07 | |||
| DE202007000987U1 | 2007-04-12 |
Other References:
See also references of EP 2210653A4
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (Xuhui, Shanghai 3, CN)
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