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 effectInfo
- 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
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.
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)
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 |
-
1935
- 1935-05-13 GB GB1404135A patent/GB456819A/en not_active Expired
Cited By (2)
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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