GB580631A - Improvements in or relating to means for the admission of the charge to the cylinders of two-stroke cycle internal combustion engines - Google Patents

Improvements in or relating to means for the admission of the charge to the cylinders of two-stroke cycle internal combustion engines

Info

Publication number
GB580631A
GB580631A GB13476/44A GB1347644A GB580631A GB 580631 A GB580631 A GB 580631A GB 13476/44 A GB13476/44 A GB 13476/44A GB 1347644 A GB1347644 A GB 1347644A GB 580631 A GB580631 A GB 580631A
Authority
GB
United Kingdom
Prior art keywords
piston
charge
valve
cylinder
chamber
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
GB13476/44A
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 GB13476/44A priority Critical patent/GB580631A/en
Publication of GB580631A publication Critical patent/GB580631A/en
Expired legal-status Critical Current

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
    • F01L11/00—Valve arrangements in working piston or piston-rod
    • F01L11/02—Valve arrangements in working piston or piston-rod in piston
    • 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
    • F02B25/14—Engines characterised by using fresh charge for scavenging cylinders using reverse-flow scavenging, e.g. with both outlet and inlet ports arranged near bottom of piston 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
    • F02B31/00—Modifying induction systems for imparting a rotation to the charge in the 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
    • 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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

580,631. Two-stroke engines. FISHER, R. J. July 14, 1944, No. 13476. [Classes 7 (ii) and 7 (vi)] In a two-stroke engine in which a precompressed charge from the crank chamber or a precompression pump enters the cylinder through an admission port arranged in the piston head and controlled by a valve 15 which is free to move between its seat and an abutment 19, subject solely to the pressure difference on its two sides, except for the inertia force of the valve itself, means is provided which exerts an axial thrust in opposition to this inertia force when the piston is near the bottom of its stroke. This means may comprise a light spring 20 or pivoted levers connected to a counter-balancing weight mounted in the piston. A conical surface 21 on the piston approaches closely the cylinder head 22 and restricts the combustion chamber to a chamber surrounded by a conical surface 12 which also guides the entering charge. This charge may be whirled by helical vanes radiating from, and supporting, a boss 17 which guides the valve stem. The valve may alternatively comprise a flat plate which may be a disc, or annular, and is guided on helical ribs extending from the conical surface 12. Stops may comprise studs in the piston head or a split ring accommodated in the groove. As shown in Fig. 1, the invention is applied to an engine having crank case compression, but the charge may be compressed outside the crankcase delivered through registered ports in the cylinder and piston and a chamber in the piston. In a further modification, Fig. 6, the valve 35 is annular and surrounds a conical boss 34 on the piston and has a conical seating therewith. It may extend to the width of the cylinder bore and is counterbalanced by a weight 38, acting through levers 40.
GB13476/44A 1944-07-14 1944-07-14 Improvements in or relating to means for the admission of the charge to the cylinders of two-stroke cycle internal combustion engines Expired GB580631A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB13476/44A GB580631A (en) 1944-07-14 1944-07-14 Improvements in or relating to means for the admission of the charge to the cylinders of two-stroke cycle internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB13476/44A GB580631A (en) 1944-07-14 1944-07-14 Improvements in or relating to means for the admission of the charge to the cylinders of two-stroke cycle internal combustion engines

Publications (1)

Publication Number Publication Date
GB580631A true GB580631A (en) 1946-09-13

Family

ID=10023659

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13476/44A Expired GB580631A (en) 1944-07-14 1944-07-14 Improvements in or relating to means for the admission of the charge to the cylinders of two-stroke cycle internal combustion engines

Country Status (1)

Country Link
GB (1) GB580631A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE909162C (en) * 1951-12-08 1954-04-15 Marta Mueller Geb V Rekowski Two-stroke internal combustion engine with split piston, one part of which serves as an overflow valve for the pre-compressed fresh gas charge
FR2928693A1 (en) * 2008-03-17 2009-09-18 Antar Daouk INTERNAL COMBUSTION ENGINE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE909162C (en) * 1951-12-08 1954-04-15 Marta Mueller Geb V Rekowski Two-stroke internal combustion engine with split piston, one part of which serves as an overflow valve for the pre-compressed fresh gas charge
FR2928693A1 (en) * 2008-03-17 2009-09-18 Antar Daouk INTERNAL COMBUSTION ENGINE

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