FR2440472A1 - IC engine with spring loaded auxiliary piston - has piston forced upward under high pressure to prevent detonation at low speed - Google Patents

IC engine with spring loaded auxiliary piston - has piston forced upward under high pressure to prevent detonation at low speed

Info

Publication number
FR2440472A1
FR2440472A1 FR7831922A FR7831922A FR2440472A1 FR 2440472 A1 FR2440472 A1 FR 2440472A1 FR 7831922 A FR7831922 A FR 7831922A FR 7831922 A FR7831922 A FR 7831922A FR 2440472 A1 FR2440472 A1 FR 2440472A1
Authority
FR
France
Prior art keywords
piston
low speed
spring loaded
engine
high pressure
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Withdrawn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
FR7831922A
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.)
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
Priority to FR7831922A priority Critical patent/FR2440472A1/en
Publication of FR2440472A1 publication Critical patent/FR2440472A1/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Withdrawn legal-status Critical Current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
    • F02B41/00—Engines characterised by special means for improving conversion of heat or pressure energy into mechanical power
    • F02B41/02—Engines with prolonged expansion
    • 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
    • F02B19/00—Engines characterised by precombustion chambers
    • F02B19/06—Engines characterised by precombustion chambers with auxiliary piston in chamber for transferring ignited charge to cylinder space
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

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)

Abstract

The internal combustion engine has an axiliary cylinder (1) on the main cylinder head. This auxiliary cylinder (1) houses a spring loaded piston (3) which can be locked in its extended position by a bolt actuated by a solenoid (7). At normal running speeds. the auxiliary piston (3) is locked, but at very low speed the lock is released. The auxiliary piston (3) is forced upwards against the spring (4) if there is an excessive rise in pressure in the main cylinder and prevents detonation and ensures that ignition occurs exactly at top dead centre.
FR7831922A 1978-11-06 1978-11-06 IC engine with spring loaded auxiliary piston - has piston forced upward under high pressure to prevent detonation at low speed Withdrawn FR2440472A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7831922A FR2440472A1 (en) 1978-11-06 1978-11-06 IC engine with spring loaded auxiliary piston - has piston forced upward under high pressure to prevent detonation at low speed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7831922A FR2440472A1 (en) 1978-11-06 1978-11-06 IC engine with spring loaded auxiliary piston - has piston forced upward under high pressure to prevent detonation at low speed

Publications (1)

Publication Number Publication Date
FR2440472A1 true FR2440472A1 (en) 1980-05-30

Family

ID=9214773

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7831922A Withdrawn FR2440472A1 (en) 1978-11-06 1978-11-06 IC engine with spring loaded auxiliary piston - has piston forced upward under high pressure to prevent detonation at low speed

Country Status (1)

Country Link
FR (1) FR2440472A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3509059A1 (en) * 1985-03-14 1985-12-19 Edmund 7730 Villingen-Schwenningen Kreyer Method for the injection of H2O mist into the engine cylinder
US4827882A (en) * 1985-07-16 1989-05-09 Paul Marius A Internal regenerative combustion engines with thermal integrated optimized system
EP1337747A1 (en) * 2000-11-29 2003-08-27 Kenneth W. Cowans High efficiency engine with variable compression ratio and charge (vcrc engine)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3509059A1 (en) * 1985-03-14 1985-12-19 Edmund 7730 Villingen-Schwenningen Kreyer Method for the injection of H2O mist into the engine cylinder
US4827882A (en) * 1985-07-16 1989-05-09 Paul Marius A Internal regenerative combustion engines with thermal integrated optimized system
EP1337747A1 (en) * 2000-11-29 2003-08-27 Kenneth W. Cowans High efficiency engine with variable compression ratio and charge (vcrc engine)
JP2004521216A (en) * 2000-11-29 2004-07-15 ケネス・ダブリュー・コーワンズ Variable compression ratio air supply variable efficiency engine (VCRC engine)
EP1337747A4 (en) * 2000-11-29 2004-08-18 Kenneth W Cowans High efficiency engine with variable compression ratio and charge (vcrc engine)
JP2008180235A (en) * 2000-11-29 2008-08-07 Kenneth W Cowans High efficiency engine with variable compression ratio and charge

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Legal Events

Date Code Title Description
ST Notification of lapse