EP0557520A4 - Pressure change-over valve for mutual operation between pressure receiving pistons - Google Patents

Pressure change-over valve for mutual operation between pressure receiving pistons

Info

Publication number
EP0557520A4
EP0557520A4 EP19900916825 EP90916825A EP0557520A4 EP 0557520 A4 EP0557520 A4 EP 0557520A4 EP 19900916825 EP19900916825 EP 19900916825 EP 90916825 A EP90916825 A EP 90916825A EP 0557520 A4 EP0557520 A4 EP 0557520A4
Authority
EP
European Patent Office
Prior art keywords
over valve
pressure
mutual operation
receiving pistons
pressure receiving
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.)
Withdrawn
Application number
EP19900916825
Other versions
EP0557520A1 (en
Inventor
Takeshi Ohkuma
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0557520A1 publication Critical patent/EP0557520A1/en
Publication of EP0557520A4 publication Critical patent/EP0557520A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D15/00—Varying compression ratio
    • F02D15/04—Varying compression ratio by alteration of volume of compression space without changing piston stroke

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Valve Device For Special Equipments (AREA)
EP19900916825 1990-11-16 1990-11-16 Pressure change-over valve for mutual operation between pressure receiving pistons Withdrawn EP0557520A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1990/001495 WO1992008884A1 (en) 1990-11-16 1990-11-16 Pressure change-over valve for mutual operation between pressure receiving pistons

Publications (2)

Publication Number Publication Date
EP0557520A1 EP0557520A1 (en) 1993-09-01
EP0557520A4 true EP0557520A4 (en) 1993-10-20

Family

ID=13986845

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900916825 Withdrawn EP0557520A4 (en) 1990-11-16 1990-11-16 Pressure change-over valve for mutual operation between pressure receiving pistons

Country Status (2)

Country Link
EP (1) EP0557520A4 (en)
WO (1) WO1992008884A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3331391B2 (en) * 1996-08-13 2002-10-07 株式会社テイエルブイ Liquid pumping device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB859764A (en) * 1957-11-15 1961-01-25 Raymond Georges Improvements in internal combustion engines the compression ratio of which is adjustable in operation
FR2397530A1 (en) * 1977-07-11 1979-02-09 Peugeot EXPLOSION MOTOR WITH VARIABLE VOLUMETRIC RATIO

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3152448A (en) * 1961-06-27 1964-10-13 Mercier Jean Hydraulic servo-system
JPS5615422U (en) * 1979-07-16 1981-02-10

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB859764A (en) * 1957-11-15 1961-01-25 Raymond Georges Improvements in internal combustion engines the compression ratio of which is adjustable in operation
FR2397530A1 (en) * 1977-07-11 1979-02-09 Peugeot EXPLOSION MOTOR WITH VARIABLE VOLUMETRIC RATIO

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9208884A1 *

Also Published As

Publication number Publication date
EP0557520A1 (en) 1993-09-01
WO1992008884A1 (en) 1992-05-29

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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17P Request for examination filed

Effective date: 19930616

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18D Application deemed to be withdrawn

Effective date: 19970602