GB456819A - Improvements in and relating to air cooled aero engines with a view to securing an improved cooling effect - Google Patents

Improvements in and relating to air cooled aero engines with a view to securing an improved cooling effect

Info

Publication number
GB456819A
GB456819A GB1404135A GB1404135A GB456819A GB 456819 A GB456819 A GB 456819A GB 1404135 A GB1404135 A GB 1404135A GB 1404135 A GB1404135 A GB 1404135A GB 456819 A GB456819 A GB 456819A
Authority
GB
United Kingdom
Prior art keywords
cylinder
vortices
fairing
ribs
circulators
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
GB1404135A
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 GB1404135A priority Critical patent/GB456819A/en
Publication of GB456819A publication Critical patent/GB456819A/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 
    • F02F1/02—Cylinders; Cylinder heads  having cooling means
    • F02F1/04—Cylinders; Cylinder heads  having cooling means for air cooling
    • F02F1/06—Shape or arrangement of cooling fins; Finned cylinders
    • F02F1/065—Shape or arrangement of cooling fins; Finned cylinders with means for directing or distributing cooling medium

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

456,819. Cooling cylinders. TOWNEND, H. C. H., National Physical Laboratory, Teddington, Middlesex. May 13, 1935, No. 14041. [Class 7 (ii)] Means for maintaining two stationary vortices at the rear of an aircraft engine cylinder, and thus causing a forwardly - directed jet of air to impinge on the back of the cylinder, to improve the cooling thereof, comprises (a) two circulators 3, or (b) a central flat plate 10 extending from a rear fairing 4 towards the cylinder. The circulators 3 should correspond in cross-section to the stationary vortices formed at low Reynolds numbers, but one may be omitted. The inner surfaces 5 of the fairing also should correspond with the vortices, and adjustable baffles 6 may be provided. The circulators may be mounted to be rotated by the air flow, or be power driven ; they may accommodate the valve-gear push-rods, or be utilized as induction pipes, in which case ribs may be provided so that they act as heaters for the mixture. Alternatively, the induction pipes are placed in the fairing 4. To stabilize the vortices, ribs 9, which may be fluted, or other small obstructions, e.g. rods, may be attached to saw-cuts in the cylinder ribs at the break-away points of the vortices. Saw-cuts may also be made in the cylinder ribs to produce turbulent flow of the cooling air. In a two-row engine, the invention is applied only to the cylinders in the rear row. The fairing 4 may have a flat top and curved sides faired into the nose of the aeroplane.
GB1404135A 1935-05-13 1935-05-13 Improvements in and relating to air cooled aero engines with a view to securing an improved cooling effect Expired GB456819A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1404135A GB456819A (en) 1935-05-13 1935-05-13 Improvements in and relating to air cooled aero engines with a view to securing an improved cooling effect

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1404135A GB456819A (en) 1935-05-13 1935-05-13 Improvements in and relating to air cooled aero engines with a view to securing an improved cooling effect

Publications (1)

Publication Number Publication Date
GB456819A true GB456819A (en) 1936-11-13

Family

ID=10033925

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1404135A Expired GB456819A (en) 1935-05-13 1935-05-13 Improvements in and relating to air cooled aero engines with a view to securing an improved cooling effect

Country Status (1)

Country Link
GB (1) GB456819A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112282957A (en) * 2020-11-11 2021-01-29 西华大学 Two-stroke aviation piston engine performance optimization thermal management system and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112282957A (en) * 2020-11-11 2021-01-29 西华大学 Two-stroke aviation piston engine performance optimization thermal management system and method
CN112282957B (en) * 2020-11-11 2022-08-19 西华大学 Two-stroke aviation piston engine performance optimization thermal management system and method

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