EP3899282A1 - Verdrängungseinstellungssystem für eine variable verdrängerpumpe - Google Patents

Verdrängungseinstellungssystem für eine variable verdrängerpumpe

Info

Publication number
EP3899282A1
EP3899282A1 EP19818191.9A EP19818191A EP3899282A1 EP 3899282 A1 EP3899282 A1 EP 3899282A1 EP 19818191 A EP19818191 A EP 19818191A EP 3899282 A1 EP3899282 A1 EP 3899282A1
Authority
EP
European Patent Office
Prior art keywords
piston
pump
spool
thrust
displacement
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
EP19818191.9A
Other languages
English (en)
French (fr)
Inventor
Giancarlo Galli
Pietro Francesco Crosio
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
VHIT SpA
Original Assignee
VHIT SpA
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 VHIT SpA filed Critical VHIT SpA
Publication of EP3899282A1 publication Critical patent/EP3899282A1/de
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/18—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber
    • F04C14/22—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members
    • F04C14/223—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members using a movable cam
    • F04C14/226—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members using a movable cam by pivoting the cam around an eccentric axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C2/3441—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/18—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by varying the volume of the working chamber
    • F04C28/22—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members
EP19818191.9A 2018-12-20 2019-12-18 Verdrängungseinstellungssystem für eine variable verdrängerpumpe Pending EP3899282A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102018000020377A IT201800020377A1 (it) 2018-12-20 2018-12-20 Sistema di regolazione della cilindrata di una pompa a cilindrata variabile
PCT/EP2019/085961 WO2020127491A1 (en) 2018-12-20 2019-12-18 Displacement adjustment system for a variable displacement pump

Publications (1)

Publication Number Publication Date
EP3899282A1 true EP3899282A1 (de) 2021-10-27

Family

ID=66166293

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19818191.9A Pending EP3899282A1 (de) 2018-12-20 2019-12-18 Verdrängungseinstellungssystem für eine variable verdrängerpumpe

Country Status (3)

Country Link
EP (1) EP3899282A1 (de)
IT (1) IT201800020377A1 (de)
WO (1) WO2020127491A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114704676B (zh) * 2022-04-25 2022-12-02 中联重科股份有限公司 单向阀及具有单向阀的液压控制装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10234621A1 (de) * 2002-07-29 2004-02-19 Zf Lenksysteme Gmbh Regeleinrichtung für eine Verstellpumpe, insbesondere eine Flügelzellenpumpe
JP5278779B2 (ja) * 2010-12-21 2013-09-04 アイシン精機株式会社 オイルポンプ
JP5762573B2 (ja) * 2011-02-21 2015-08-12 ピールブルグ パンプ テクノロジー ゲゼルシャフト ミット ベシュレンクテル ハフツングＰｉｅｒｂｕｒｇ Ｐｕｍｐ Ｔｅｃｈｎｏｌｏｇｙ ＧｍｂＨ 予圧制御装置を有する圧力制御弁を備える可変容量形潤滑油ポンプ
KR101505775B1 (ko) 2014-04-15 2015-03-26 명화공업주식회사 하나의 챔버와 2방 밸브를 이용한 2단 가변 오일펌프

Also Published As

Publication number Publication date
WO2020127491A1 (en) 2020-06-25
IT201800020377A1 (it) 2020-06-20

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