GB345775A - Improvements in poppet valve gear for fluid pressure engines - Google Patents
Improvements in poppet valve gear for fluid pressure enginesInfo
- Publication number
- GB345775A GB345775A GB5582/30A GB558230A GB345775A GB 345775 A GB345775 A GB 345775A GB 5582/30 A GB5582/30 A GB 5582/30A GB 558230 A GB558230 A GB 558230A GB 345775 A GB345775 A GB 345775A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- tappets
- valve
- chamber
- action
- 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
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L31/00—Valve drive, valve adjustment during operation, or other valve control, not provided for in groups F01L15/00 - F01L29/00
- F01L31/08—Valve drive or valve adjustment, apart from tripping aspects; Positively-driven gear
- F01L31/16—Valve drive or valve adjustment, apart from tripping aspects; Positively-driven gear the drive being effected by specific means other than eccentric, e.g. cams; Valve adjustment in connection with such drives
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
345,775. Lubricating engine valve tappets. CAPROTTI, A., 4, Via Mercadante, Milan, Italy. Feb. 19, 1930, No. 5582. Convention date, Feb. 28, 1929. [Class 12 (ii).] Single or multiple engines may be partly cut off by putting one or more valves out of action by means of angularly-movable tappets. The cam-operated lever u, Fig. 8, operates the valve stem f through a piston e and stem e<1> mounted in a rotatable guide g. The lever n acts upon a hardened piece e<2> bearing upon changeable shims mounted in the piston e which slides in a chamber q. The guide may be rotated to the dotted position by means of a lever H to put the valve out of action. In order to facilitate the use of the swinging tappets, the main valves are returned by fluid-pressure instead of springs. The fluid is cut off to bring the tappets into action. The oil in the cam box communicates with the chamber q and is kept at a higher position than the lowest position of the piston e. The piston and rod are provided with ports and a ball-valve, and the lower part of the chamber q acts as a pump to effect the lubrication of the piston and to prevent leakage along the stem e<1>. Specification 170.855, [Class 122 (ii), Steam-engine distributing and expansion valves &c.], is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR345775X | 1929-02-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB345775A true GB345775A (en) | 1931-04-02 |
Family
ID=8892356
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5582/30A Expired GB345775A (en) | 1929-02-28 | 1930-02-19 | Improvements in poppet valve gear for fluid pressure engines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB345775A (en) |
-
1930
- 1930-02-19 GB GB5582/30A patent/GB345775A/en not_active Expired
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