SE9402329L - Two stroke, air cooled, long coil petrol engine for powering a portable implement - Google Patents

Two stroke, air cooled, long coil petrol engine for powering a portable implement

Info

Publication number
SE9402329L
SE9402329L SE9402329A SE9402329A SE9402329L SE 9402329 L SE9402329 L SE 9402329L SE 9402329 A SE9402329 A SE 9402329A SE 9402329 A SE9402329 A SE 9402329A SE 9402329 L SE9402329 L SE 9402329L
Authority
SE
Sweden
Prior art keywords
piston
powering
stroke
cylinders
air cooled
Prior art date
Application number
SE9402329A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE9402329D0 (en
SE501997C2 (en
Inventor
Lloyd H Tuggle
Imack L Collins
Jeffrey G Sadler
Original Assignee
Wci Outdoor Products Inc
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 Wci Outdoor Products Inc filed Critical Wci Outdoor Products Inc
Priority to SE9402329A priority Critical patent/SE501997C2/en
Publication of SE9402329D0 publication Critical patent/SE9402329D0/en
Publication of SE9402329L publication Critical patent/SE9402329L/en
Publication of SE501997C2 publication Critical patent/SE501997C2/en

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
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/02—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for hand-held tools
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F01B3/0002—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • 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
    • F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
    • F02B25/02—Engines characterised by using fresh charge for scavenging cylinders using unidirectional scavenging
    • F02B25/12—Engines with U-shaped cylinders, having ports in each arm
    • 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
    • F02B75/06—Engines with means for equalising torque
    • F02B75/065—Engines with means for equalising torque with double connecting rods or crankshafts
    • 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
    • F02B75/26—Engines with cylinder axes coaxial with, or parallel or inclined to, main-shaft axis; Engines with cylinder axes arranged substantially tangentially to a circle centred on main-shaft axis
    • 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 
    • F02F1/02—Cylinders; Cylinder heads  having cooling means
    • F02F1/10—Cylinders; Cylinder heads  having cooling means for liquid cooling
    • F02F1/108—Siamese-type cylinders, i.e. cylinders cast together
    • 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
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
    • 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
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

The engine has a first piston linearly movable forwards and backwards in a first cylinder provided with an outlet port, a second piston linearly movable forwards and backwards in a second cylinder provided with one or more scavenging ports, a common combustion chamber which joins the first and second cylinders to form a flow of fresh gas and exhaust gases in the cylinders in a direction from the scavenging ports towards the outlet ports. The cylinders and the combustion chamber form a U-section. - A first, one-sidedly located crankshaft (402) is provided with a counterweight (406) and a crank pin (408) connected with the first piston and a second, one-sidedly located crankshaft (502) is provided with a counterweight (506) and a crank pin (508) connected with the second piston. The crankshafts extend parallel but in opposite directions and are reciprocally drivably connected to rotate in opposite directions.
SE9402329A 1994-07-01 1994-07-01 Two-stroke, air-cooled, longitudinal scavenged petrol engine for driving portable tool, such as grass trimmer - has scavenging cylinder and outlet cylinder connected by common combustion chamber, each cylinder having piston SE501997C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9402329A SE501997C2 (en) 1994-07-01 1994-07-01 Two-stroke, air-cooled, longitudinal scavenged petrol engine for driving portable tool, such as grass trimmer - has scavenging cylinder and outlet cylinder connected by common combustion chamber, each cylinder having piston

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9402329A SE501997C2 (en) 1994-07-01 1994-07-01 Two-stroke, air-cooled, longitudinal scavenged petrol engine for driving portable tool, such as grass trimmer - has scavenging cylinder and outlet cylinder connected by common combustion chamber, each cylinder having piston

Publications (3)

Publication Number Publication Date
SE9402329D0 SE9402329D0 (en) 1994-07-01
SE9402329L true SE9402329L (en) 1995-07-10
SE501997C2 SE501997C2 (en) 1995-07-10

Family

ID=20394596

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9402329A SE501997C2 (en) 1994-07-01 1994-07-01 Two-stroke, air-cooled, longitudinal scavenged petrol engine for driving portable tool, such as grass trimmer - has scavenging cylinder and outlet cylinder connected by common combustion chamber, each cylinder having piston

Country Status (1)

Country Link
SE (1) SE501997C2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11635020B2 (en) 2020-07-02 2023-04-25 Fna Group, Inc. Multiple cylinder engine
US11603793B2 (en) 2020-07-02 2023-03-14 Fna Group, Inc. Multiple cylinder engine
US11674434B2 (en) 2020-07-02 2023-06-13 Impact Consulting And Engineering Llc Multiple cylinder engine
US11506119B2 (en) 2020-07-02 2022-11-22 Impact Consulting And Engineering Llc Multiple cylinder engine

Also Published As

Publication number Publication date
SE9402329D0 (en) 1994-07-01
SE501997C2 (en) 1995-07-10

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