GB584302A - Improvements in and relating to valve tappets - Google Patents
Improvements in and relating to valve tappetsInfo
- Publication number
- GB584302A GB584302A GB2600644A GB2600644A GB584302A GB 584302 A GB584302 A GB 584302A GB 2600644 A GB2600644 A GB 2600644A GB 2600644 A GB2600644 A GB 2600644A GB 584302 A GB584302 A GB 584302A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chamber
- fluid
- piston
- valve
- inertia
- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/52—Mechanical actuating means with crank, eccentric, or cam
- F16K31/524—Mechanical actuating means with crank, eccentric, or cam with a cam
- F16K31/52408—Mechanical actuating means with crank, eccentric, or cam with a cam comprising a lift valve
- F16K31/52425—Mechanical actuating means with crank, eccentric, or cam with a cam comprising a lift valve with a ball-shaped valve member
-
- 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
- F01L1/25—Hydraulic tappets between cam and valve stem
- F01L1/252—Hydraulic tappets between cam and valve stem for side-valve engines
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
584,302. Valve gear. ORD. L. R., and ORD. L. C. Dec. 28, 1944, No. 26006. [Class 7 (vi)] A valve tappet, Fig. 1, with two members 1 and 2 in teleseopic relation with an oil or other fluid chamber 3 between, them for maintaining axial adjustment, say between a cam and a valve stem, has a chamber 8 in member 2 in which is contained an inertia piston 17 which on reiprocation of the tappet forces the liquid, supplied through the passage 10, through its central passage 20 into the chamber 3. The inertia piston 17 has a large diameter central portion terminating in two spigots 18 and 19, the spigot 19 which is of larger diameter than spigot 18 engages the chamber 13 and serves as the compressing piston, acting against the ball valve 14 on seat 16, forcing the fluid through another valve 21 into the chamber 3. In a modification, Fig. 4, showing an alternative shape for the inertia piston, the fluid is supplied direct to the chamber 8 through passages 10 and 9, and the lower spigot of the inertia piston which is supported with a spring contained in the compression chamber serves as the non-return valve. In another modification the inertia piston has an annular portion on its enlarged section which makes a sliding fit in the chamber 8 so as to shut off the supply of fluid when the piston is at the top of its stroke. In a further modification, Fig. 7, the tappet carries its own supply of fluid in a recess between the members 1 and 2 formed by a flexible coupling 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2600644A GB584302A (en) | 1944-12-28 | 1944-12-28 | Improvements in and relating to valve tappets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2600644A GB584302A (en) | 1944-12-28 | 1944-12-28 | Improvements in and relating to valve tappets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB584302A true GB584302A (en) | 1947-01-10 |
Family
ID=10236851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2600644A Expired GB584302A (en) | 1944-12-28 | 1944-12-28 | Improvements in and relating to valve tappets |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB584302A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2695013A (en) * | 1953-07-08 | 1954-11-23 | Glenn T Randol | Hydraulic valve tappet |
| US2840063A (en) * | 1955-06-17 | 1958-06-24 | Gen Motors Corp | Hydraulic valve lifter |
| US6782857B1 (en) * | 2002-12-30 | 2004-08-31 | Travis A. Goshorn | Race car valve lifter |
| WO2021238229A1 (en) * | 2020-05-26 | 2021-12-02 | 潍坊力创电子科技有限公司 | Hydraulic tappet |
| WO2021253812A1 (en) * | 2020-06-16 | 2021-12-23 | 潍坊力创电子科技有限公司 | Engine in-cylinder braking system and hydraulic tappet matching same |
-
1944
- 1944-12-28 GB GB2600644A patent/GB584302A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2695013A (en) * | 1953-07-08 | 1954-11-23 | Glenn T Randol | Hydraulic valve tappet |
| US2840063A (en) * | 1955-06-17 | 1958-06-24 | Gen Motors Corp | Hydraulic valve lifter |
| US6782857B1 (en) * | 2002-12-30 | 2004-08-31 | Travis A. Goshorn | Race car valve lifter |
| WO2021238229A1 (en) * | 2020-05-26 | 2021-12-02 | 潍坊力创电子科技有限公司 | Hydraulic tappet |
| WO2021253812A1 (en) * | 2020-06-16 | 2021-12-23 | 潍坊力创电子科技有限公司 | Engine in-cylinder braking system and hydraulic tappet matching same |
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