FR2318305A1 - Air cooled two stroke engine - has linkage connecting throttle to hinged sprung flap lifted by air from fan - Google Patents

Air cooled two stroke engine - has linkage connecting throttle to hinged sprung flap lifted by air from fan

Info

Publication number
FR2318305A1
FR2318305A1 FR7522919A FR7522919A FR2318305A1 FR 2318305 A1 FR2318305 A1 FR 2318305A1 FR 7522919 A FR7522919 A FR 7522919A FR 7522919 A FR7522919 A FR 7522919A FR 2318305 A1 FR2318305 A1 FR 2318305A1
Authority
FR
France
Prior art keywords
air
flap
stroke engine
fan
throttle
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.)
Granted
Application number
FR7522919A
Other languages
French (fr)
Other versions
FR2318305B3 (en
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.)
GUTBROD SA
Original Assignee
GUTBROD SA
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 GUTBROD SA filed Critical GUTBROD SA
Priority to FR7522919A priority Critical patent/FR2318305A1/en
Publication of FR2318305A1 publication Critical patent/FR2318305A1/en
Application granted granted Critical
Publication of FR2318305B3 publication Critical patent/FR2318305B3/fr
Granted 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
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/02—Controlling of coolant flow the coolant being cooling-air
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D39/00—Other non-electrical control
    • F02D39/04—Other non-electrical control for engines with other cycles than four-stroke, e.g. two-stroke
    • 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
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/0206—Arrangements; Control features; Details thereof specially positioned with relation to engine or engine housing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/0216—Arrangements; Control features; Details thereof of the air-vane type

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

The air-cooled, two-stroke engine (1) has a carburettor (2) with a throttle (3) connected by a link (9) to a hinged flap (6). An adjustable tension spring (10) pulls the flap (6) down over the cooling fins (7). A centrifugal fan (4) with curved blades (5) mounted on the crank-shaft directs a stream of cooling air against the flap (6). The pressure of the air lifts the flap (6) against the force of the spring (9), and actuates the throttle (3) so that the engine speed is reduced. The flap (6) thus acts as a speed governor and at the same time controls the flow of air over the cooling fins (7), through the gap (8) to the region between cylinder block and exhaust (11).
FR7522919A 1975-07-18 1975-07-18 Air cooled two stroke engine - has linkage connecting throttle to hinged sprung flap lifted by air from fan Granted FR2318305A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7522919A FR2318305A1 (en) 1975-07-18 1975-07-18 Air cooled two stroke engine - has linkage connecting throttle to hinged sprung flap lifted by air from fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7522919A FR2318305A1 (en) 1975-07-18 1975-07-18 Air cooled two stroke engine - has linkage connecting throttle to hinged sprung flap lifted by air from fan

Publications (2)

Publication Number Publication Date
FR2318305A1 true FR2318305A1 (en) 1977-02-11
FR2318305B3 FR2318305B3 (en) 1979-04-27

Family

ID=9158233

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7522919A Granted FR2318305A1 (en) 1975-07-18 1975-07-18 Air cooled two stroke engine - has linkage connecting throttle to hinged sprung flap lifted by air from fan

Country Status (1)

Country Link
FR (1) FR2318305A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4351279A (en) * 1980-06-09 1982-09-28 Outboard Marine Corporation Air vane governor for internal combustion engine
CN108138661A (en) * 2015-10-16 2018-06-08 日立工机株式会社 Engine type working rig

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4351279A (en) * 1980-06-09 1982-09-28 Outboard Marine Corporation Air vane governor for internal combustion engine
CN108138661A (en) * 2015-10-16 2018-06-08 日立工机株式会社 Engine type working rig
CN108138661B (en) * 2015-10-16 2020-10-30 工机控股株式会社 Engine type working machine

Also Published As

Publication number Publication date
FR2318305B3 (en) 1979-04-27

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Legal Events

Date Code Title Description
ST Notification of lapse