SE9802869L - Closed system lift cylinder - Google Patents

Closed system lift cylinder

Info

Publication number
SE9802869L
SE9802869L SE9802869A SE9802869A SE9802869L SE 9802869 L SE9802869 L SE 9802869L SE 9802869 A SE9802869 A SE 9802869A SE 9802869 A SE9802869 A SE 9802869A SE 9802869 L SE9802869 L SE 9802869L
Authority
SE
Sweden
Prior art keywords
hydraulic machine
lift cylinder
closed system
lifting cylinder
system lift
Prior art date
Application number
SE9802869A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE521009C2 (en
SE9802869D0 (en
Inventor
Lars Bruun
Original Assignee
Lars Bruun
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lars Bruun filed Critical Lars Bruun
Priority to SE9802869A priority Critical patent/SE521009C2/en
Publication of SE9802869D0 publication Critical patent/SE9802869D0/en
Priority to AU49436/99A priority patent/AU4943699A/en
Priority to PCT/SE1999/001131 priority patent/WO2000000748A1/en
Priority to DE69920452T priority patent/DE69920452T2/en
Priority to EP99933371A priority patent/EP1092097B1/en
Priority to KR1020007014865A priority patent/KR20010071622A/en
Priority to JP2000557083A priority patent/JP2002519597A/en
Priority to US09/719,860 priority patent/US6584769B1/en
Publication of SE9802869L publication Critical patent/SE9802869L/en
Publication of SE521009C2 publication Critical patent/SE521009C2/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2217—Hydraulic or pneumatic drives with energy recovery arrangements, e.g. using accumulators, flywheels

Abstract

An operator sends a control signal to a control servo to activate a valve (9) which ensures valves (2,5) are open. The connection between the accumulator (6), hydraulic machine (3) and the lifting cylinder (1) is thus completely open. Pressurized oil in the accumulator flows to the variable hydraulic machine conveying oil to the lifting cylinder. The hydraulic machine may provide a pressure increase to reach the requisite pressure level via a motor (D).
SE9802869A 1998-06-27 1998-08-25 Mobile working machine for handling a variable load e.g. for excavators, trucks, container handlers SE521009C2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
SE9802869A SE521009C2 (en) 1998-08-25 1998-08-25 Mobile working machine for handling a variable load e.g. for excavators, trucks, container handlers
AU49436/99A AU4943699A (en) 1998-06-27 1999-06-23 Mobile working machine
PCT/SE1999/001131 WO2000000748A1 (en) 1998-06-27 1999-06-23 Mobile working machine
DE69920452T DE69920452T2 (en) 1998-06-27 1999-06-23 MOBILE WORK MACHINE
EP99933371A EP1092097B1 (en) 1998-06-27 1999-06-23 Mobile working machine
KR1020007014865A KR20010071622A (en) 1998-06-27 1999-06-23 Mobile working machine
JP2000557083A JP2002519597A (en) 1998-06-27 1999-06-23 Mobile work machine
US09/719,860 US6584769B1 (en) 1998-06-27 1999-06-23 Mobile working machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9802869A SE521009C2 (en) 1998-08-25 1998-08-25 Mobile working machine for handling a variable load e.g. for excavators, trucks, container handlers

Publications (3)

Publication Number Publication Date
SE9802869D0 SE9802869D0 (en) 1998-08-25
SE9802869L true SE9802869L (en) 2000-02-26
SE521009C2 SE521009C2 (en) 2003-09-23

Family

ID=20412374

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9802869A SE521009C2 (en) 1998-06-27 1998-08-25 Mobile working machine for handling a variable load e.g. for excavators, trucks, container handlers

Country Status (1)

Country Link
SE (1) SE521009C2 (en)

Also Published As

Publication number Publication date
SE521009C2 (en) 2003-09-23
SE9802869D0 (en) 1998-08-25

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Legal Events

Date Code Title Description
NUG Patent has lapsed