GB736582A - Improvements in or relating to cams for actuating the valves of internal combustion engines - Google Patents
Improvements in or relating to cams for actuating the valves of internal combustion enginesInfo
- Publication number
- GB736582A GB736582A GB239151A GB239151A GB736582A GB 736582 A GB736582 A GB 736582A GB 239151 A GB239151 A GB 239151A GB 239151 A GB239151 A GB 239151A GB 736582 A GB736582 A GB 736582A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lift
- cam
- actuating
- valve
- lift curve
- 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
- F16H—GEARING
- F16H53/00—Cams ; Non-rotary cams; or cam-followers, e.g. rollers for gearing mechanisms
- F16H53/02—Single-track cams for single-revolution cycles; Camshafts with such cams
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
736,582. Valve gear. RUSTON & HORNSBY, Ltd. Jan. 31,1952 [Jan. 31, 1951], No. 2391/51. Class 7(6). A valve-actuating cam is designed to produce a lift curve built up of two sine or cosine waves of which the ratio of the amplitude of the wave of longer wavelength to that of the wave of shorter wavelength is less than 3 to 1, for example 2À25 to 1, and which are superimposed so that the point of maximum valve lift is a point at which the waves are in opposite phase at maximum amplitude. The lift curve is represented generally by the equation E= A cos BF + C cos DF where 3C>A and D>B, F representing cam angle to a convenient scale. The lift curve shown in Fig. 2 of the drawings accompanying the Provisional Specification is built up of two superimposed cosine waves having amplitudes in the ratio of 1À5 to 1 and the portion used in forming the cam profile is the flat-topped portion extending from 76 degrees to 284 degrees. A constant velocity ramp portion may be provided at each end of the lift portion of the cam. Specification 573,294 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB239151A GB736582A (en) | 1951-01-31 | 1951-01-31 | Improvements in or relating to cams for actuating the valves of internal combustion engines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB239151A GB736582A (en) | 1951-01-31 | 1951-01-31 | Improvements in or relating to cams for actuating the valves of internal combustion engines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB736582A true GB736582A (en) | 1955-09-14 |
Family
ID=9738715
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB239151A Expired GB736582A (en) | 1951-01-31 | 1951-01-31 | Improvements in or relating to cams for actuating the valves of internal combustion engines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB736582A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0319180A2 (en) * | 1987-12-02 | 1989-06-07 | Emhart Industries, Inc. | Improved mechanism for glass container inspection apparatus |
CN114954829A (en) * | 2022-07-01 | 2022-08-30 | 武汉理工大学 | Ship main propulsion device vibration signal simulation method for diagnosis and verification |
-
1951
- 1951-01-31 GB GB239151A patent/GB736582A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0319180A2 (en) * | 1987-12-02 | 1989-06-07 | Emhart Industries, Inc. | Improved mechanism for glass container inspection apparatus |
EP0319180A3 (en) * | 1987-12-02 | 1990-03-14 | Emhart Industries, Inc. | Improved mechanism for glass container inspection apparatus |
CN114954829A (en) * | 2022-07-01 | 2022-08-30 | 武汉理工大学 | Ship main propulsion device vibration signal simulation method for diagnosis and verification |
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