GB1285471A - Improvements in two-stroke internal combustion engines for chainsaws - Google Patents

Improvements in two-stroke internal combustion engines for chainsaws

Info

Publication number
GB1285471A
GB1285471A GB605569A GB605569A GB1285471A GB 1285471 A GB1285471 A GB 1285471A GB 605569 A GB605569 A GB 605569A GB 605569 A GB605569 A GB 605569A GB 1285471 A GB1285471 A GB 1285471A
Authority
GB
United Kingdom
Prior art keywords
ports
chainsaws
piston
internal combustion
combustion engines
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.)
Expired
Application number
GB605569A
Inventor
Frank Davison
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 GB605569A priority Critical patent/GB1285471A/en
Publication of GB1285471A publication Critical patent/GB1285471A/en
Expired legal-status Critical Current

Links

Classifications

    • 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 
    • F02F1/18—Other cylinders
    • F02F1/22—Other cylinders characterised by having ports in cylinder wall for scavenging or charging
    • 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
    • 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
    • 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 
    • F02F1/002—Integrally formed cylinders and cylinder heads
    • 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
    • F02B2720/00—Engines with liquid fuel
    • F02B2720/13—Two stroke engines with ignition device
    • F02B2720/136—Scavenging or charging channels or openings

Landscapes

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

Abstract

1285471 Two-stroke crank-case compression engines F DAVISON 29 April 1970 [4 Feb 1969] 6055/69 Heading F1B When the piston A is at the bottom of its stroke a charge from the crank-case flows between the gudgeon pin bosses F and the piston skirt, and through ports H, J in the skirt opposite the ends of the gudgeon pin E and cylinder ports, to the cylinder B above the piston. Pairs of cylinder ports H, J communicate with each skirt port, Figs. 2 to 4 (not shown). The ports H, J may be circular, rectangular or oval and formed during casting or by drilling or milling.
GB605569A 1969-02-04 1969-02-04 Improvements in two-stroke internal combustion engines for chainsaws Expired GB1285471A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB605569A GB1285471A (en) 1969-02-04 1969-02-04 Improvements in two-stroke internal combustion engines for chainsaws

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB605569A GB1285471A (en) 1969-02-04 1969-02-04 Improvements in two-stroke internal combustion engines for chainsaws

Publications (1)

Publication Number Publication Date
GB1285471A true GB1285471A (en) 1972-08-16

Family

ID=9807594

Family Applications (1)

Application Number Title Priority Date Filing Date
GB605569A Expired GB1285471A (en) 1969-02-04 1969-02-04 Improvements in two-stroke internal combustion engines for chainsaws

Country Status (1)

Country Link
GB (1) GB1285471A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4135479A (en) * 1975-12-19 1979-01-23 Karl Schmidt Gmbh Piston and cylinder for two-cycle engines
US4306522A (en) * 1980-06-19 1981-12-22 Briggs & Stratton Corporation Transfer port duct for two-stroke engines
FR2545157A1 (en) * 1983-04-28 1984-11-02 Malossi Ugo Improvement to pistons used particularly in two-stroke engines
EP0997620A3 (en) * 1998-10-30 2000-12-13 Komatsu Zenoah Co. Cylinder for stratified scavenging two-cycle engine
WO2009006650A1 (en) * 2007-07-06 2009-01-15 Mahle König Kommanditgesellschaft Gmbh & Co Piston

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4135479A (en) * 1975-12-19 1979-01-23 Karl Schmidt Gmbh Piston and cylinder for two-cycle engines
US4306522A (en) * 1980-06-19 1981-12-22 Briggs & Stratton Corporation Transfer port duct for two-stroke engines
FR2545157A1 (en) * 1983-04-28 1984-11-02 Malossi Ugo Improvement to pistons used particularly in two-stroke engines
EP0997620A3 (en) * 1998-10-30 2000-12-13 Komatsu Zenoah Co. Cylinder for stratified scavenging two-cycle engine
WO2009006650A1 (en) * 2007-07-06 2009-01-15 Mahle König Kommanditgesellschaft Gmbh & Co Piston
US8539926B2 (en) 2007-07-06 2013-09-24 Mahle Koenig Kommanditgesellschaft Gmbh & Co. Kg Piston, cylinder and piston assembly and piston ring for a piston

Similar Documents

Publication Publication Date Title
GB1307723A (en) Reciprocating piston internal combustion engine
GB1134999A (en) Trunk pistons for internal combustion engines
GB1443619A (en) Piston and connecting rod arrangement for internal combustion engines
GB1500574A (en) Four-stroke petrol engines
GB1435958A (en) Two-stroke engine
GB1285471A (en) Improvements in two-stroke internal combustion engines for chainsaws
GB1490268A (en) Petrol engine of the four-stroke spark-ignition type
GB1068612A (en) Improvements in or relating to two-stroke internal combustion engines
ES460179A1 (en) Divided combustion chamber internal combustion engine
GB1155085A (en) Two-Stroke Internal Combustion Engines
GB1457101A (en) Two-stroke piston and cylinder combination
GB851322A (en) Piston
GB1021378A (en) Two-stroke internal combustion engines
GB1180003A (en) Improvements in and relating to Pistons for Internal Combustion Engines.
GB1093431A (en) Improvements in or relating to internal combustion engines
GB496623A (en) Improvements in pistons for internal combustion engines
GB1326287A (en) Pistons for internal combustion engines
GB1029259A (en) Piston for internal combustion engines
ES355162A1 (en) Improvements in two-time engines. (Machine-translation by Google Translate, not legally binding)
ES265101A1 (en) Supercharged two-stroke internal combustion engine
GB593663A (en) Improvements in or relating to means for facilitating combustion in the cylinders of two-stroke internal combustion engines
GB1208619A (en) Improvements in or relating to pistons for reciprocatory internal combustion engines
GB616893A (en) Improvements in or relating to cylinders of single acting two stroke internal combustion engines
GB1063125A (en) Reciprocating internal combustion engines
GB784250A (en) Air-cooled internal combustion engines with piston controlled ports

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees