KR920002722U - Priority control device for heavy machine tools - Google Patents

Priority control device for heavy machine tools

Info

Publication number
KR920002722U
KR920002722U KR2019900010407U KR900010407U KR920002722U KR 920002722 U KR920002722 U KR 920002722U KR 2019900010407 U KR2019900010407 U KR 2019900010407U KR 900010407 U KR900010407 U KR 900010407U KR 920002722 U KR920002722 U KR 920002722U
Authority
KR
South Korea
Prior art keywords
control device
machine tools
priority control
heavy machine
heavy
Prior art date
Application number
KR2019900010407U
Other languages
Korean (ko)
Other versions
KR940000185Y1 (en
Inventor
조형준
Original Assignee
삼성중공업 주식회사
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 삼성중공업 주식회사 filed Critical 삼성중공업 주식회사
Priority to KR2019900010407U priority Critical patent/KR940000185Y1/en
Publication of KR920002722U publication Critical patent/KR920002722U/en
Application granted granted Critical
Publication of KR940000185Y1 publication Critical patent/KR940000185Y1/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
    • E02F9/2278—Hydraulic circuits
    • E02F9/2282—Systems using center bypass type changeover valves
    • 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
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • 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
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2267—Valves or distributors
    • 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
    • E02F9/2278—Hydraulic circuits
    • E02F9/2285—Pilot-operated systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Pressure Circuits (AREA)
KR2019900010407U 1990-07-11 1990-07-11 Oil-pressure control device for attachment of excavator KR940000185Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019900010407U KR940000185Y1 (en) 1990-07-11 1990-07-11 Oil-pressure control device for attachment of excavator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019900010407U KR940000185Y1 (en) 1990-07-11 1990-07-11 Oil-pressure control device for attachment of excavator

Publications (2)

Publication Number Publication Date
KR920002722U true KR920002722U (en) 1992-02-25
KR940000185Y1 KR940000185Y1 (en) 1994-01-19

Family

ID=19301081

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019900010407U KR940000185Y1 (en) 1990-07-11 1990-07-11 Oil-pressure control device for attachment of excavator

Country Status (1)

Country Link
KR (1) KR940000185Y1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102011695B1 (en) * 2018-01-10 2019-08-19 조윤주 Hand Sanitizer Portable Pocket

Also Published As

Publication number Publication date
KR940000185Y1 (en) 1994-01-19

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E701 Decision to grant or registration of patent right
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FPAY Annual fee payment

Payment date: 20020108

Year of fee payment: 9

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