GB511941A - Improvements in or relating to engines and method of reducing vibrations therein - Google Patents
Improvements in or relating to engines and method of reducing vibrations thereinInfo
- Publication number
- GB511941A GB511941A GB35483/37A GB3548337A GB511941A GB 511941 A GB511941 A GB 511941A GB 35483/37 A GB35483/37 A GB 35483/37A GB 3548337 A GB3548337 A GB 3548337A GB 511941 A GB511941 A GB 511941A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rods
- master
- groups
- cranks
- engines
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/22—Compensation of inertia forces
- F16F15/24—Compensation of inertia forces of crankshaft systems by particular disposition of cranks, pistons, or the like
-
- 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
- F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
- F02B75/18—Multi-cylinder engines
- F02B75/22—Multi-cylinder engines with cylinders in V, fan, or star arrangement
- F02B75/222—Multi-cylinder engines with cylinders in V, fan, or star arrangement with cylinders in star arrangement
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
511,941. Fluid-pressure engines. UNITED AIRCRAFT CORPORATION. Dec. 22, 1937, No. 35483. Convention date, Aug. 14. [Class 122 (iii)] [Also in Group XXVII] Engines with groups of radial, multiple cylinders connected to cranks by master-rods and subsidiary link rods have the master rods and/or the cranks so arranged as to reduce vibrations due to harmonics of the torque variation. The groups are arranged so that their vibrations balance out or neutralize. In the arrangement shown in Fig. 3, the cylinders of each group are staggered with respect to the cylinders in the adjacent group. The cranks of the adjacent groups are arranged oppositely, with their master rods 22, 34 respectively as nearly as possible in coincidence. The harmonic components of the torque curves of the respective groups when added together result in a reduction of the exciting vibratory forces. In an arrangement such as shown in Fig. 2, the master rods may remain as shown, and one of the crankpins moved through 180 degrees to bring it into axial alignment with the other crank pin.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US511941XA | 1937-08-14 | 1937-08-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB511941A true GB511941A (en) | 1939-08-28 |
Family
ID=21969881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB35483/37A Expired GB511941A (en) | 1937-08-14 | 1937-12-22 | Improvements in or relating to engines and method of reducing vibrations therein |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR840744A (en) |
| GB (1) | GB511941A (en) |
-
1937
- 1937-12-22 GB GB35483/37A patent/GB511941A/en not_active Expired
-
1938
- 1938-07-16 FR FR840744D patent/FR840744A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR840744A (en) | 1939-05-03 |
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