GB1108782A - Improvements in internal-combustion engines - Google Patents

Improvements in internal-combustion engines

Info

Publication number
GB1108782A
GB1108782A GB20890/65A GB2089065A GB1108782A GB 1108782 A GB1108782 A GB 1108782A GB 20890/65 A GB20890/65 A GB 20890/65A GB 2089065 A GB2089065 A GB 2089065A GB 1108782 A GB1108782 A GB 1108782A
Authority
GB
United Kingdom
Prior art keywords
exhaust
intake
smaller
piston
valves
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
GB20890/65A
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
Publication of GB1108782A publication Critical patent/GB1108782A/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 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4264—Shape or arrangement of intake or exhaust channels in cylinder heads of exhaust channels
    • 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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • 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
    • 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
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • 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
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/08—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition
    • 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 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4285—Shape or arrangement of intake or exhaust channels in cylinder heads of both intake and exhaust channel
    • 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
    • F02B2720/00—Engines with liquid fuel
    • F02B2720/25—Supply of fuel in the cylinder
    • F02B2720/257—Supply of fuel under pressure in the cylinder without blowing fluid
    • F02B2720/258—Supply of fuel under pressure in the cylinder without blowing fluid with compression and ignition exclusively in the cylinder
    • 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 
    • F02F1/24—Cylinder heads
    • F02F2001/244—Arrangement of valve stems in cylinder heads
    • F02F2001/245—Arrangement of valve stems in cylinder heads the valve stems being orientated at an angle with the cylinder axis
    • 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

Abstract

1,108,782. Valve gear. F. ORAZIO. May 18, 1965 [May 26; 1964; Dec. 18, 1964], No. 20890/65. Heading F1B. In an I. C. engine in which the piston and cylinder head are shaped to cause 'squishing' of the gases into a small offset combustion chamber 5, Fig. 1 part of the valve means provides intake and exhaust overlap both before and after the t. d. c. position and at least part of the valve means is substantially closed at t. d. c. The combustion chamber has a smaller crosssection than that of the cylinder when the position is at t. d. c. Part 4, Fig. 2 of the piston 8 is of inverted Vee-shape and lies adjacent a correspondingly shaped part of the cylinder head. The larger intake and exhaust valves 2, 2a are closed at exhaust t. d. c. but have smaller additional openings respectively starting and ending more than 35 degrees before and after t. d. c. Smaller intake and exhaust valves 4, 4a have continuous valve overlap at t. d. c. In a further embodiment (not shown) the valves 4, 4a are omitted.
GB20890/65A 1964-05-26 1965-05-18 Improvements in internal-combustion engines Expired GB1108782A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1166864 1964-05-26
IT2694164 1964-12-18

Publications (1)

Publication Number Publication Date
GB1108782A true GB1108782A (en) 1968-04-03

Family

ID=26326433

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20890/65A Expired GB1108782A (en) 1964-05-26 1965-05-18 Improvements in internal-combustion engines

Country Status (3)

Country Link
US (1) US3334618A (en)
FR (1) FR1442617A (en)
GB (1) GB1108782A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3633577A (en) * 1969-03-10 1972-01-11 Sanzio Pio Vincenzo Piatti Internal-combustion engines
US3953969A (en) * 1971-06-05 1976-05-04 Fuji Heavy Industries Ltd. System for purifying exhaust gas of a spark ignition type four stroke internal combustion engine
US4354463A (en) * 1979-06-09 1982-10-19 Honda Giken Kogyo Kabushiki Kaisha Device for improving combustion efficiency of mixture in four cycle internal combustion engine
GB2105785B (en) * 1981-09-10 1984-10-03 Honda Motor Co Ltd Controlling opening of multiple i c engine intake and exhaust valves
IT1201034B (en) * 1983-02-24 1989-01-27 Mario Anfusio INTERNAL COMBUSTION ALTERNATIVE ENGINE WITH MULTIPLE VALVE CYLINDERS
DE3327948A1 (en) * 1983-08-03 1985-02-21 Albrecht 6638 Dillingen Nikes Trapezoidal compression chamber
DE3875593T2 (en) * 1987-12-08 1993-03-11 Nissan Motor VALVE CONTROL DEVICE.
JPH03264727A (en) * 1990-03-15 1991-11-26 Mazda Motor Corp Intake system for multiple valve engine
US20060169257A1 (en) * 2005-01-28 2006-08-03 Ziehl John C High compression pistons having vanes or channels
US7882811B2 (en) * 2006-10-12 2011-02-08 Anthony Nicholas Zurn Methods for controlling valves of an internal combustion engine, devices for controlling the valves, and engines employing the methods

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2362622A (en) * 1944-11-14 Injection engine
US2011992A (en) * 1929-12-28 1935-08-20 Gen Motors Corp Internal combustion engine
US2235710A (en) * 1939-07-15 1941-03-18 Nat Supply Co Internal combustion engine and method of operating the same
US2428886A (en) * 1945-01-26 1947-10-14 Gen Motors Corp Internal-combustion engine
US2644436A (en) * 1950-10-21 1953-07-07 American Locomotive Co Valve actuating mechanism
US2647500A (en) * 1950-10-28 1953-08-04 Lang Heinrich Valve gear for diesel engines

Also Published As

Publication number Publication date
FR1442617A (en) 1966-06-17
US3334618A (en) 1967-08-08

Similar Documents

Publication Publication Date Title
GB1291962A (en) Internal combustion engine having a dual induction system
ES428278A1 (en) Internal combustion engine with stratified charge
GB1386363A (en) Two-stroke internal combustion engine
GB1521621A (en) Four-stroke internal combustion engines
GB1403877A (en) Rotary internal combustion engine
GB1108782A (en) Improvements in internal-combustion engines
ES459984A1 (en) Device for injecting water into the cylinders of an internal combustion engine, particularly for reducing the degree of pollution of the latter
GB1321452A (en) Atmospheric pollution control arrangement for internal combustion engine
JPS55101717A (en) Side-valve type internal combustion engine
GB993769A (en) Rotary piston internal combustion engines
GB1515130A (en) Cylinder heads for internal combustion compression-ignition engines of the four valve type
GB1533993A (en) Internal combustion engines comprising two inlet valves per cylinder actuated by a single common rocker
GB1354168A (en) Internal combustion engines
GB1345707A (en) Two-stroke internal combustion engines
JPS57198314A (en) Spark-ignited internal combustion engine
GB1172652A (en) Rotary Piston Internal Combustion Engines.
FR2455175A1 (en) Induction and exhaust system for internal combustion engine - has single cylinder valve with exhaust and induction valves opening onto auxiliary chamber
GB1246522A (en) Improvements relating to poppet-valve seatings for internal combustion engines
GB1255823A (en) Improvements in or relating to internal combustion engines
GB948686A (en) Improvements in or relating to internal combustion engines
GB1116140A (en) Compression relief mechanism for starting internal combustion engines
GB1217151A (en) Improvements in internal combustion engines
JPS5261617A (en) Internal combustion engine of full running type
GB1036490A (en) Improvements relating to driving arrangements for the valves of internal combustion engines
GB1212692A (en) Improvements in or relating to cylinder heads for internal combustion engines