SE9702631D0 - Decompression device for facilitating starting operation of a two-stroke combustion engine - Google Patents

Decompression device for facilitating starting operation of a two-stroke combustion engine

Info

Publication number
SE9702631D0
SE9702631D0 SE9702631A SE9702631A SE9702631D0 SE 9702631 D0 SE9702631 D0 SE 9702631D0 SE 9702631 A SE9702631 A SE 9702631A SE 9702631 A SE9702631 A SE 9702631A SE 9702631 D0 SE9702631 D0 SE 9702631D0
Authority
SE
Sweden
Prior art keywords
valve
crankcase
valve component
engine
cylinder
Prior art date
Application number
SE9702631A
Other languages
Swedish (sv)
Other versions
SE9702631L (en
SE518009C2 (en
Inventor
Anders Wilhelm Lundgren
Original Assignee
Berema Atlas Copco Ab
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 Berema Atlas Copco Ab filed Critical Berema Atlas Copco Ab
Priority to SE9702631A priority Critical patent/SE518009C2/en
Publication of SE9702631D0 publication Critical patent/SE9702631D0/en
Publication of SE9702631L publication Critical patent/SE9702631L/en
Publication of SE518009C2 publication Critical patent/SE518009C2/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/08—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for decompression, e.g. during starting; for changing compression ratio
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N19/00—Starting aids for combustion engines, not otherwise provided for
    • F02N19/004—Aiding engine start by using decompression means or variable valve actuation

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Valve Device For Special Equipments (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

The engine has a cylinder (13) with a combustion chamber (18), a reciprocal piston in a cylinder and a crankshaft (11) rotatable in a crankcase. A valve housing (25) communicates with the cylinder via a gas outlet channel (21,22). A valve component works with the valve seat for adjustment between open and closed positions. The valve component is connected to a pressure gas driven activation component (29) comprising an activation chamber (37) in which is fitted an elastically deformable membrane (36) mechanically connected to the valve component. A conduit (30) connects the activation chamber with the engine crankcase so that after the engine starts crankcase pressure is conducted to the activation chamber to activate the membrane and the valve component in the direction of the closed position.
SE9702631A 1997-07-07 1997-07-07 Decompression device for starting aid for two-stroke IC engine SE518009C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9702631A SE518009C2 (en) 1997-07-07 1997-07-07 Decompression device for starting aid for two-stroke IC engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9702631A SE518009C2 (en) 1997-07-07 1997-07-07 Decompression device for starting aid for two-stroke IC engine

Publications (3)

Publication Number Publication Date
SE9702631D0 true SE9702631D0 (en) 1997-07-07
SE9702631L SE9702631L (en) 1999-01-08
SE518009C2 SE518009C2 (en) 2002-08-13

Family

ID=20407679

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9702631A SE518009C2 (en) 1997-07-07 1997-07-07 Decompression device for starting aid for two-stroke IC engine

Country Status (1)

Country Link
SE (1) SE518009C2 (en)

Also Published As

Publication number Publication date
SE9702631L (en) 1999-01-08
SE518009C2 (en) 2002-08-13

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