Title:
ELECTROMAGNETIC SHOCK ABSORBER
Document Type and Number:
WIPO Patent Application WO/2020/158755
Kind Code:
A1
Abstract:
This electromagnetic shock absorber (D) comprises: a non-magnetic cylinder (1); a piston rod (2); an extension-side piston (3) that defines an extension-side chamber (R1) within the cylinder (1); a compression-side piston (4) that defines a compression-side chamber (R2) within the cylinder (1); a linear motor (LM) that is provided with a magnetic field (F) and an armature (E) attached to the piston rod (2) between the extension-side piston (3) and the compression-side piston (4); a gas that is filled in the extension-side chamber (R1) and the compression-side chamber (R2); a cooling passage (CP) that faces the armature (E); an extension-side restriction part (ER) that applies resistance to the flow of gas from the extension-side chamber (R1) to the cooling passage (CP); an extension-side rectification part (EC) that permits only the flow of gas from the cooling passage (CP) to the extension-side chamber (R1); a compression-side restriction part (CR) that applies resistance to the flow of gas from the compression-side chamber (R2) to the cooling passage (CP); and a compression-side rectification part (CC) that permits only the flow of gas from the cooling passage (CP) to the compression-side chamber (R2).
Inventors:
KUROIWA ISAO (JP)
KONDO TAKUHIRO (JP)
NOMA TATSUYA (JP)
KONDO TAKUHIRO (JP)
NOMA TATSUYA (JP)
Application Number:
PCT/JP2020/003037
Publication Date:
August 06, 2020
Filing Date:
January 28, 2020
Export Citation:
Assignee:
KYB CORP (JP)
International Classes:
H02K41/03; B60G17/00; B60G17/015; F16F9/02; F16F9/42; F16F15/023; F16F15/03
Foreign References:
| JP2005240984A | 2005-09-08 | |||
| JP2002257189A | 2002-09-11 | |||
| JPS63287629A | 1988-11-24 | |||
| JP2008062738A | 2008-03-21 | |||
| JP2008286362A | 2008-11-27 |
Attorney, Agent or Firm:
ISHIKAWA Ken (JP)
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