FR2278912A1 - Six-stroke cycle internal combustion engine - prevents power loss at end of expansion with vacuum suppression valve - Google Patents

Six-stroke cycle internal combustion engine - prevents power loss at end of expansion with vacuum suppression valve

Info

Publication number
FR2278912A1
FR2278912A1 FR7442216A FR7442216A FR2278912A1 FR 2278912 A1 FR2278912 A1 FR 2278912A1 FR 7442216 A FR7442216 A FR 7442216A FR 7442216 A FR7442216 A FR 7442216A FR 2278912 A1 FR2278912 A1 FR 2278912A1
Authority
FR
France
Prior art keywords
valve
expansion
combustion engine
internal combustion
power loss
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Withdrawn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
FR7442216A
Other languages
French (fr)
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.)
VENTUR E Inc O RICHMOND
Original Assignee
VENTUR E Inc O RICHMOND
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 VENTUR E Inc O RICHMOND filed Critical VENTUR E Inc O RICHMOND
Publication of FR2278912A1 publication Critical patent/FR2278912A1/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Withdrawn legal-status Critical Current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
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B75/021—Engines characterised by their cycles, e.g. six-stroke having six or more strokes per cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F2001/244—Arrangement of valve stems in cylinder heads
    • F02F2001/247—Arrangement of valve stems in cylinder heads the valve stems being orientated in parallel with the cylinder axis

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

Existing four-stroke cycle piston engines produce a depression in the cylinder at the end of the expansion stroke when the throttle is only partly open. The invention proposes the installation of a third valve which functions as a vacuum suppression valve which opens towards the end of the expansion stroke and allows atmospheric air to enter the cylinder and suppress the vacuum. The valve has a shaft which is surrounded by two springs which urge the valve against its seat. One of the springs strongly urges the valve against its seat and is inoperative during the depression part of the cycle such that the depression can raise the valve against the light pressure of the second spring.
FR7442216A 1973-12-21 1974-12-20 Six-stroke cycle internal combustion engine - prevents power loss at end of expansion with vacuum suppression valve Withdrawn FR2278912A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US42704873A 1973-12-21 1973-12-21

Publications (1)

Publication Number Publication Date
FR2278912A1 true FR2278912A1 (en) 1976-02-13

Family

ID=23693277

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7442216A Withdrawn FR2278912A1 (en) 1973-12-21 1974-12-20 Six-stroke cycle internal combustion engine - prevents power loss at end of expansion with vacuum suppression valve

Country Status (6)

Country Link
BE (1) BE823652A (en)
BR (1) BR7410734D0 (en)
FR (1) FR2278912A1 (en)
IL (1) IL46282A0 (en)
IT (1) IT1027972B (en)
NL (1) NL7416718A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1152138A3 (en) * 2000-05-02 2002-04-17 Heinzle, Friedrich Process for operating an internal combustion engine and such engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1152138A3 (en) * 2000-05-02 2002-04-17 Heinzle, Friedrich Process for operating an internal combustion engine and such engine
US6622471B1 (en) 2000-05-02 2003-09-23 Edmund Ferdinand Nagel Method for driving a combustion motor as well as a combustion motor

Also Published As

Publication number Publication date
NL7416718A (en) 1975-06-24
BR7410734D0 (en) 1975-09-02
IT1027972B (en) 1978-12-20
IL46282A0 (en) 1975-03-13
BE823652A (en) 1975-06-20

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Legal Events

Date Code Title Description
ST Notification of lapse