GB734827A - Improvements in and relating to a hydraulic tappet for internal combustion engine valve gear - Google Patents
Improvements in and relating to a hydraulic tappet for internal combustion engine valve gearInfo
- Publication number
- GB734827A GB734827A GB20863/54A GB2086354A GB734827A GB 734827 A GB734827 A GB 734827A GB 20863/54 A GB20863/54 A GB 20863/54A GB 2086354 A GB2086354 A GB 2086354A GB 734827 A GB734827 A GB 734827A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plunger
- cylinder
- tappet
- spring
- check valve
- 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
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/20—Adjusting or compensating clearance
- F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
- F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
- F01L1/245—Hydraulic tappets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
734,827. Valve gear. VOORHIES, C. Sept. 15, 1952 [May 8, 1952]. No. 20863/54. Divided out of 734,786. Class 7(6). [Also in Group XXIV] A hydraulic tappet comprises a cylinder 39, Fig. 1, closed at one end, a hollow plunger 46 therein having an opening at one end closed by a check valve 49 which is surrounded by a retainer 50 and urged to close by a washer-like spring 53, a spring 51 urging the cylinder and plunger apart, and means for the admission of hydraulic fluid to the interior of the plunger 46. The check valve 49 is provided with a projection which, as described in Specification 734,786, may bottom on the end of the cylinder 39. In Fig. 1 the tappet is situated between a cam 3 and push-rod 31 and the hydraulic fluid is supplied to a reservoir 48 in the plunger 46 when an annular passage 41 in the cylinder passes a supply passage 7. The fluid flows from reservoir 48 past the check valve 49 to the tappet compression space when the plunger and cylinder are moved apart by the spring 51 to take 'up clearance. In a modification, Fig. 6, the tappet is situated between a push rod 65 and valve lever 76 and the hydraulic fluid is supplied through passages 79, 78 in the lever 76 and its pivot shaft 77. The washer-like spring 53 may be slightly curved or may have curved projections as shown in Fig. 2 and the retainer 50 may be provided with a number of slits in its sides.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US734827XA | 1952-05-08 | 1952-05-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB734827A true GB734827A (en) | 1955-08-10 |
Family
ID=22113952
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB20863/54A Expired GB734827A (en) | 1952-05-08 | 1952-09-15 | Improvements in and relating to a hydraulic tappet for internal combustion engine valve gear |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB734827A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1301823B (en) * | 1965-10-07 | 1969-08-28 | Motomak | Self-adjusting, hydraulically adjusting lash adjuster for valve control of piston internal combustion engines |
DE4340035B4 (en) * | 1992-12-10 | 2006-02-23 | Ina-Schaeffler Kg | Mechanical bucket tappet |
-
1952
- 1952-09-15 GB GB20863/54A patent/GB734827A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1301823B (en) * | 1965-10-07 | 1969-08-28 | Motomak | Self-adjusting, hydraulically adjusting lash adjuster for valve control of piston internal combustion engines |
DE4340035B4 (en) * | 1992-12-10 | 2006-02-23 | Ina-Schaeffler Kg | Mechanical bucket tappet |
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