Title:
VEHICLE-BODY INCLINATION DEVICE AND DOUBLE-LAYER THREE-WAY VALVE USED IN VEHICLE-BODY INCLINATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/153759
Kind Code:
A1
Abstract:
The problem addressed by the present invention is, in a vehicle-body inclination device, to perform rapid vehicle-body inclination control while thoroughly taking advantage of a conventional-technology automatic height-adjustment valve for leveling-adjustment control. The vehicle-body inclination device (30) is configured containing: a control unit (110); and individual inclination units (112, 113) that are provided corresponding to air springs (22, 23). The individual inclination unit (112) is able to perform sufficient supply/discharge of air to/from the air spring (22) by driving a high-volume valve (170) and a control valve (40) using a height deviation, which is the deviation between the height command value provided by the control unit (110) and the vehicle height value obtained from a link-lever mechanism (24). The control valve (40) has a double-layer structure of a spool (80), a control sleeve (90), and an affixed sleeve (91). The control sleeve (90) is driven to move by the link-lever mechanism (24) and a rotary-linear conversion mechanism (44). The spool (80) is driven to move by a spool actuator (120) in accordance with a set vehicle height value.
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Inventors:
SASAKI KATSUMI (JP)
SHINMURA HIROSHI (JP)
HAYASHI TETSUYA (JP)
MIHARA TAKEYOSHI (JP)
KAMIKAWA NAOHIDE (JP)
SHINMURA HIROSHI (JP)
HAYASHI TETSUYA (JP)
MIHARA TAKEYOSHI (JP)
KAMIKAWA NAOHIDE (JP)
Application Number:
PCT/JP2012/061863
Publication Date:
November 15, 2012
Filing Date:
May 09, 2012
Export Citation:
Assignee:
PNEUMATIC SERVO CONTROLS LTD (JP)
NIPPON SHARYO LTD (JP)
SASAKI KATSUMI (JP)
SHINMURA HIROSHI (JP)
HAYASHI TETSUYA (JP)
MIHARA TAKEYOSHI (JP)
KAMIKAWA NAOHIDE (JP)
NIPPON SHARYO LTD (JP)
SASAKI KATSUMI (JP)
SHINMURA HIROSHI (JP)
HAYASHI TETSUYA (JP)
MIHARA TAKEYOSHI (JP)
KAMIKAWA NAOHIDE (JP)
International Classes:
B61F5/22; B61F5/10; F16F9/02; F16F9/34; F16K11/07
Foreign References:
| JP2011016441A | 2011-01-27 | |||
| JP2011000949A | 2011-01-06 | |||
| JP2004052889A | 2004-02-19 | |||
| JP2001315516A | 2001-11-13 | |||
| JP2002297243A | 2002-10-11 | |||
| JP2004270870A | 2004-09-30 | |||
| JP2005003163A | 2005-01-06 | |||
| JP2007187296A | 2007-07-26 | |||
| JP2010103199A | 2010-05-06 |
Other References:
See also references of EP 2708437A4
Attorney, Agent or Firm:
YKI Patent Attorneys (JP)
Patent business corporation YKI international patent firm (JP)
Patent business corporation YKI international patent firm (JP)
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Claims: