GB1407207A - High-speed four-stroke spark-ignition petrol engines - Google Patents

High-speed four-stroke spark-ignition petrol engines

Info

Publication number
GB1407207A
GB1407207A GB4523871A GB4523871A GB1407207A GB 1407207 A GB1407207 A GB 1407207A GB 4523871 A GB4523871 A GB 4523871A GB 4523871 A GB4523871 A GB 4523871A GB 1407207 A GB1407207 A GB 1407207A
Authority
GB
United Kingdom
Prior art keywords
exhaust
valves
inlet
valve
inlet valve
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
GB4523871A
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.)
TERRYTUNE DEVELOPMENTS Ltd
Original Assignee
TERRYTUNE DEVELOPMENTS Ltd
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
Priority to BE792999D priority Critical patent/BE792999A/xx
Application filed by TERRYTUNE DEVELOPMENTS Ltd filed Critical TERRYTUNE DEVELOPMENTS Ltd
Priority to GB4523871A priority patent/GB1407207A/en
Priority to CA152,196A priority patent/CA971482A/en
Priority to ES407273A priority patent/ES407273A1/en
Priority to IT7270047A priority patent/IT975099B/en
Priority to AU47151/72A priority patent/AU458634B2/en
Priority to FR7234236A priority patent/FR2155403A5/fr
Priority to JP9761072A priority patent/JPS5632454B2/ja
Priority to DE2247625A priority patent/DE2247625C3/en
Priority to US05/502,196 priority patent/US4114585A/en
Publication of GB1407207A publication Critical patent/GB1407207A/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
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • 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
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
    • 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
    • F02B2700/00—Measures relating to the combustion process without indication of the kind of fuel or with more than one fuel
    • F02B2700/02—Four stroke engines
    • F02B2700/021—Four stroke engines with measures for removing exhaust gases from the cylinder
    • 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

1407207 Four-stroke engines TERRYTUNE DEVELOPMENTS Ltd 28 Sept 1972 [28 Sept 1971] 45238/71 Heading F1B In a spark-ignition engine having a single inlet valve 5 and a single exhaust valve 6 for each cylinder, the area of the exhaust valve of each cylinder is at least 7% greater than that of inlet valve. An engine having exhaust valves which are smaller than the inlet valves may be modified by the provision of a replacement cylinder head in which the exhaust valves are of a larger diameter than the inlet valves which are equal in diameter to those in the original head. The exhaust valve area may be from 15 to 65% greater than the inlet valve area. The engine compression ratio may be in the range 7:1 to 11:1 and the compression ratio may be reduced by machining the piston crown. A larger carburetter may be used with the replacement cylinder head. The Specification discloses numerical examples of exhaust and inlet valve diameters in original and replacement cylinder heads.
GB4523871A 1971-09-28 1971-09-28 High-speed four-stroke spark-ignition petrol engines Expired GB1407207A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
BE792999D BE792999A (en) 1971-09-28
GB4523871A GB1407207A (en) 1971-09-28 1971-09-28 High-speed four-stroke spark-ignition petrol engines
CA152,196A CA971482A (en) 1971-09-28 1972-09-20 Internal combustion engines
ES407273A ES407273A1 (en) 1971-09-28 1972-09-26 High-speed four-stroke spark-ignition petrol engines
AU47151/72A AU458634B2 (en) 1971-09-28 1972-09-27 Internal combustion engines
IT7270047A IT975099B (en) 1971-09-28 1972-09-27 INTERNAL COMBUSTION ENGINE
FR7234236A FR2155403A5 (en) 1971-09-28 1972-09-27
JP9761072A JPS5632454B2 (en) 1971-09-28 1972-09-28
DE2247625A DE2247625C3 (en) 1971-09-28 1972-09-28 External ignition, multi-cylinder, four-stroke gasoline internal combustion engine
US05/502,196 US4114585A (en) 1971-09-28 1974-08-30 Internal-combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4523871A GB1407207A (en) 1971-09-28 1971-09-28 High-speed four-stroke spark-ignition petrol engines

Publications (1)

Publication Number Publication Date
GB1407207A true GB1407207A (en) 1975-09-24

Family

ID=10436433

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4523871A Expired GB1407207A (en) 1971-09-28 1971-09-28 High-speed four-stroke spark-ignition petrol engines

Country Status (6)

Country Link
JP (1) JPS5632454B2 (en)
AU (1) AU458634B2 (en)
CA (1) CA971482A (en)
DE (1) DE2247625C3 (en)
ES (1) ES407273A1 (en)
GB (1) GB1407207A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51130861U (en) * 1975-04-07 1976-10-21
JPS52152559A (en) * 1976-06-07 1977-12-19 Murata Machinery Ltd Heald unit for dobby machine
JPS5378266U (en) * 1976-12-01 1978-06-29
JPS59175753A (en) * 1983-03-25 1984-10-04 Toshiba Corp Semiconductor device and lead frame

Also Published As

Publication number Publication date
ES407273A1 (en) 1976-06-16
AU4715172A (en) 1974-04-04
JPS4841112A (en) 1973-06-16
DE2247625C3 (en) 1974-10-10
AU458634B2 (en) 1975-03-06
DE2247625A1 (en) 1973-04-05
DE2247625B2 (en) 1974-02-28
JPS5632454B2 (en) 1981-07-28
CA971482A (en) 1975-07-22

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee