Title:
STRUCTURE OF HYDRAULIC DAMPER
Document Type and Number:
WIPO Patent Application WO/2012/156854
Kind Code:
A4
Abstract:
A structure of hydraulic damper (100) comprises a cylinder (10) with a bottom wall (11), a head wall (12) and side walls (13) that define a damping chamber (15) containing a damping fluid (17); in the damping chamber (15) a piston (20) slides with a first face (20a) and a second face (20b) opposite to each other. In particular, the piston (20) defines a first chamber (21) and a second chamber (22) separate from each other and is integral to a shaft (25) with an external connection end (36). The piston (20) is suitable for carrying out a forward stroke (A), between a first dead point (BDP), towards a second dead point (TDP) and a back stroke (B) between the second dead point (TDP) and the first dead point (BDP). In particular, the piston (20) comprises a plurality of permanent holes (33) suitable for permanently connecting the first chamber (21) and second chamber (22) and a plurality of apertures (26) associated each to a plurality of plug elements (37) pivotally connected by connection means (40), on a face of the piston (20) at the apertures (26). The plug elements (37) are suitable to pass spontaneously from a closed configuration (C), in which they close the apertures (26) and allow the leakage of the damping fluid (17) through the plurality of permanent holes (33), in order to damp the movement of the piston (20), to an open configuration (D), in which they open the apertures (26) and allow the free passage of the damping fluid (17) between the first (21) and second chamber (22) allowing a substantial passage of the damping fluid (17) between the first (21) and second chamber (22), in order to reduce the time that takes the piston (20) in the return stroke to return to the starting position BDP.
More Like This:
| JP5698561 | Buffer |
| WO/2015/041095 | DAMPING VALVE |
Inventors:
CUCE GIORGIO (IT)
CUCE ANTONIO (IT)
ERMINI CLAUDIO (IT)
CUCE ANTONIO (IT)
ERMINI CLAUDIO (IT)
Application Number:
PCT/IB2012/052229
Publication Date:
July 04, 2013
Filing Date:
May 03, 2012
Export Citation:
Assignee:
CUCE GIORGIO (IT)
CUCE ANTONIO (IT)
ERMINI CLAUDIO (IT)
CUCE ANTONIO (IT)
ERMINI CLAUDIO (IT)
International Classes:
F16F9/34; B63B21/00; F03B13/12
Attorney, Agent or Firm:
CELESTINO, Marco (Viale Giovanni Pisano 31, Pisa, IT)
Download PDF:
Previous Patent: METHOD FOR ONU REGISTRATION IN A PASSIVE OPTICAL NETWORK
Next Patent: INTER-RAT HANDOVER CONTROL USING EMPTY GRE PACKETS
Next Patent: INTER-RAT HANDOVER CONTROL USING EMPTY GRE PACKETS