GB558838A - Improvements in multi-cylinder, four-stroke, internal-combustion engines - Google Patents

Improvements in multi-cylinder, four-stroke, internal-combustion engines

Info

Publication number
GB558838A
GB558838A GB1355442A GB1355442A GB558838A GB 558838 A GB558838 A GB 558838A GB 1355442 A GB1355442 A GB 1355442A GB 1355442 A GB1355442 A GB 1355442A GB 558838 A GB558838 A GB 558838A
Authority
GB
United Kingdom
Prior art keywords
cylinders
rods
crankshaft
cylinder
crankpin
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
GB1355442A
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 GB1355442A priority Critical patent/GB558838A/en
Publication of GB558838A publication Critical patent/GB558838A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C3/00—Shafts; Axles; Cranks; Eccentrics
    • F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
    • F16C3/20—Shape of crankshafts or eccentric-shafts having regard to balancing

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

558,838. Multi-cylinder I.C. engines. LEETE, J. F. Sept. 26, 1942, No. 13554. [Class 7 (ii)] A four-stroke engine having four (or more) cylinders and poppet valves has a crankshaft with two throws arranged at 180 degrees the first pair of connecting-rods being on one common crank pin 14, Fig. 2, and the second pair on the other crankpin, the crankshaft being counter-weighted so that each throw is balanced as regards the associated connecting-rods and pistons. The main counter-weight 17 is preferably provided midway along each crankpin and is bolted to a platform 18 on the crankpin. The crankshaft itself preferably has throws such that it may be balanced in a dynamic balancer and the weight 17 together with further weights 20 on the crank webs added to balance the rods and pistons. The valve timing of the engine may be arranged to give increased valve overlap since there is no interference between the inlet periods of cylinders 1 and 2 or cylinders 3 and 4 as there is with the usual crankshaft layout particularly where the cylinders of each pair share a siamese inlet port. The invention may also be applied to six cylinder engines with three crankpins at 120 degrees each carrying two connecting rods. For an eight-cylinder engine four crank pins are used and these may either be at 90 degrees from one another or aligned in pairs. Specification 166,329, [Class 7 (ii)], is referred to .
GB1355442A 1942-09-26 1942-09-26 Improvements in multi-cylinder, four-stroke, internal-combustion engines Expired GB558838A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1355442A GB558838A (en) 1942-09-26 1942-09-26 Improvements in multi-cylinder, four-stroke, internal-combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1355442A GB558838A (en) 1942-09-26 1942-09-26 Improvements in multi-cylinder, four-stroke, internal-combustion engines

Publications (1)

Publication Number Publication Date
GB558838A true GB558838A (en) 1944-01-24

Family

ID=10025035

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1355442A Expired GB558838A (en) 1942-09-26 1942-09-26 Improvements in multi-cylinder, four-stroke, internal-combustion engines

Country Status (1)

Country Link
GB (1) GB558838A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2532199A1 (en) * 1982-08-27 1984-03-02 Cranfield Inst Of Tech MECHANICAL SYSTEM WITH ROTARY ARMS AND BALANCING MASS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2532199A1 (en) * 1982-08-27 1984-03-02 Cranfield Inst Of Tech MECHANICAL SYSTEM WITH ROTARY ARMS AND BALANCING MASS

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