GB1275531A - Hydraulic tappet - Google Patents
Hydraulic tappetInfo
- Publication number
- GB1275531A GB1275531A GB875/71A GB87571A GB1275531A GB 1275531 A GB1275531 A GB 1275531A GB 875/71 A GB875/71 A GB 875/71A GB 87571 A GB87571 A GB 87571A GB 1275531 A GB1275531 A GB 1275531A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tappet
- plunger
- rocker arm
- push rod
- spherical
- 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
- F01L1/255—Hydraulic tappets between cam and rocker arm
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
1275531 Hydraulic tappet JOHNSON PRODUCTS Inc 7 Jan 1971 [7 May 1970] 875/71 Heading F2K [Also in Division F1] An hydraulic tappet for an overhead camshaft I.C. engine has a push rod shorter than the body of the tappet with part-spherical ends to allow relative swivelling between the rod and the tappet plunger and the rocker arm respectively. An open ended tappet body 32 has a plunger 38 having seat 62 for a part-spherical end of a push rod 82 having its other end 84, of smaller diameter, fitting in a socket 86 of a rocker arm 12. The spherical engagement ends of the push rod allows swivelling to compensate for the arcuate path taken by the end of the rocker arm. Lubrication is effected through passageways 18, 36, 40 into the reservoir 46 of the plunger 38, which is closed by a check valve of a plate 52 and spring 50, and thence through metering means 60 comprising ridges 66, 70 and a metering disc 72 with apertures 74 to an opening 64 and thence to a passageway 89. The oil in the reservoir 46 holds the push rod 82 in constant contact with the rocker arm while sufficient pressure retracts the plunger 38 by oil passing the check valve 50, 52.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US3552770A | 1970-05-07 | 1970-05-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1275531A true GB1275531A (en) | 1972-05-24 |
Family
ID=21883258
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB875/71A Expired GB1275531A (en) | 1970-05-07 | 1971-01-07 | Hydraulic tappet |
Country Status (5)
Country | Link |
---|---|
US (1) | US3661127A (en) |
CA (1) | CA924981A (en) |
DE (1) | DE2100671A1 (en) |
FR (1) | FR2091318A5 (en) |
GB (1) | GB1275531A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3880127A (en) * | 1972-12-07 | 1975-04-29 | Eaton Corp | Hydraulic valve gear |
FR2578907B1 (en) * | 1985-03-13 | 1989-06-16 | Peugeot | DEVICE FOR ACTUATING VALVES IN AN INTERNAL COMBUSTION ENGINE COMPRISING FOUR VALVES INCLINED IN V AND A CENTRAL SPARK PLUG BY CYLINDER |
US5445118A (en) * | 1994-04-22 | 1995-08-29 | Brunswick Corporation | Valve train assembly for internal combustion engine |
US5720246A (en) * | 1996-07-23 | 1998-02-24 | Minnesota Mining And Manufacturing | Continuous fiber reinforced aluminum matrix composite pushrod |
US6786186B2 (en) * | 1998-09-09 | 2004-09-07 | International Engine Intellectual Property Company, Llc | Unit trigger actuator |
US7347172B2 (en) * | 2005-05-10 | 2008-03-25 | International Engine Intellectual Property Company, Llc | Hydraulic valve actuation system with valve lash adjustment |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1335515A (en) * | 1920-03-30 | Internal-combustion engine | ||
US1521623A (en) * | 1920-02-09 | 1925-01-06 | J I Case Plow Works Company | Valve mechanism |
US1798938A (en) * | 1927-04-25 | 1931-03-31 | Gen Motors Res Corp | Hydraulic slack adjuster |
US2665669A (en) * | 1948-06-11 | 1954-01-12 | Gen Motors Corp | Hydraulic lash adjuster |
US2858817A (en) * | 1957-02-04 | 1958-11-04 | Eaton Mfg Co | Tappet mechanism |
US2944536A (en) * | 1958-05-30 | 1960-07-12 | Austin Motor Co Ltd | Overhead valve internal combustion engines |
DE1284235B (en) * | 1965-01-20 | 1969-02-20 | Opel Adam Ag | Valve control for internal combustion engines |
US3272190A (en) * | 1965-07-21 | 1966-09-13 | Jr Vincent J Di Matteo | Tapered push rod |
FR94585E (en) * | 1967-07-19 | 1969-09-12 | Andre Citroen | Camshaft distribution for engine cylinder head. |
-
1970
- 1970-05-07 US US35527A patent/US3661127A/en not_active Expired - Lifetime
-
1971
- 1971-01-07 CA CA102194A patent/CA924981A/en not_active Expired
- 1971-01-07 GB GB875/71A patent/GB1275531A/en not_active Expired
- 1971-01-08 DE DE19712100671 patent/DE2100671A1/en not_active Ceased
- 1971-05-06 FR FR7116452A patent/FR2091318A5/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CA924981A (en) | 1973-04-24 |
DE2100671A1 (en) | 1971-11-25 |
US3661127A (en) | 1972-05-09 |
FR2091318A5 (en) | 1972-01-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |