EP1117904B1 - Ventilhebel - Google Patents
Ventilhebel Download PDFInfo
- Publication number
- EP1117904B1 EP1117904B1 EP99946178A EP99946178A EP1117904B1 EP 1117904 B1 EP1117904 B1 EP 1117904B1 EP 99946178 A EP99946178 A EP 99946178A EP 99946178 A EP99946178 A EP 99946178A EP 1117904 B1 EP1117904 B1 EP 1117904B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- sections
- rocker arm
- wall
- section
- 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 - Lifetime
Links
- 239000002184 metal Substances 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 239000000463 material Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
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
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/18—Rocking arms or levers
-
- 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
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/18—Rocking arms or levers
- F01L1/185—Overhead end-pivot rocking arms
-
- 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
- F01L2305/00—Valve arrangements comprising rollers
Definitions
- valve lever according to the preamble of claim 1.
- a valve lever is from known from DE 195 43 657.
- Valve levers are used for lateral guidance of the Lever provided strip-shaped tabs on the valve, in the longitudinal direction on the actual valve lever and connect it by folding it 180 ° transversely axis to the lever on the underside of the lever be created.
- this solution requires increased Material expenditure, since the sheet metal from which the lever is formed will be extended to the strip-shaped tabs must, on the other hand, the connection cross-section is the strip-shaped Tabs with the lever so low that a fixation the tabs on the lever z. B. required by spot welding is.
- the invention is therefore concerned with the problem of to achieve such a lever a side guide uses little material and has high strength.
- the sections that guide the valve lever on the Cause valve foot are integral with the valve lever.
- the wall of the valve lever is defined as the bottom wall, with which it contacts the valve foot, means below So towards the valve base. Than about horizontal defines the position of the lower wall of the valve lever.
- Claim 1 has the lever in the longitudinal direction before and after the area in which he contacts the valve, for example U-shaped cross section.
- the sections forming the guide can either according to Claim 4 from the lower wall of the approximately U-shaped cross section or according to claim 5 from the side walls of the U-shaped Cross-section can be folded out.
- a valve lever 1 has a rear part 2 with which it against a game compensation element, not shown supports, a central part 3, on which it is via a camshaft and a roller bearing is operated and a front one Part 4 on. With the wall 5 of the front pointing downwards Part 4, the valve 6 to be actuated is contacted.
- the Valve lever In addition to H. viewed in the longitudinal direction of the lever before and behind the area contacting the valve, the Valve lever has an approximately U-shaped cross section, which is composed of the lower wall 5 and two side walls 10 and 11.
- the side walls 10 and cut 11 sections 7 and 8 on 3 of 4 sides, the one with the fourth, not cut out side as the axis of rotation are bent or twisted by 180 °, whereby the distance between the two sections is somewhat larger is than the width of the valve foot and the sections 7 and 8 together guiding the valve lever 1 on the valve 6 cause.
- the length of the cut and folded down Area is in Fig. 1 based on the slightly curved Stripe recognizable over the wall 5.
- the cross section of the valve lever in the Area of the folded sections made up of two narrow upper, belonging to the side walls 10 and 11 Bridges, the underside of which by folding out of the sections 7 and 8 in the walls 10 and 11 created Has openings and an inverted U-shaped wide lower Bridge composed of the lower wall 5 and the folded sections 7 and 8.
- valve lever effecting sections 12 and 13 are the side guide of the valve lever effecting sections 12 and 13 from the lower, horizontal running wall of the lever cut out and 90 ° folded down. 3, the cross-section continues the valve lever in the area of the folded sections together from the two side walls 10 and 11, and from the horizontally extending wall 5 with those from the horizontal Wall sections folded out downwards 12 and 13, so that between the horizontal wall 5 and the side walls 10, 11 in the direction of the valve lever extending narrow opening is created.
- the generation of the necessary Cuts before folding or using the same tool also includes folding or bending the sections caused downwards.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Mechanically-Actuated Valves (AREA)
Description
- Fig. 1
- einen Ventilhebel, bei dem die die Führung bewirkenden Teilstücke aus den Seitenwänden herausgeklappt sind, im Längsschnitt
- Fig. 2
- den Ventilhebel gemäß Fig. 1 im Querschnitt
- Fig. 3
- einen Ventilhebel, bei dem die die Führung bewirkenden Teilstücke aus der unteren Wand herausgeklappt sind, im Querschnitt.
Claims (5)
- Ventilhebel aus Blech mit einem das Ventil kontaktierenden Bereich des Ventilhebels und mit einem etwa U-förmigem Querschnitt vor und nach diesem Bereich,
dadurch gekennzeichnet, daß in dem das Ventil (6) kontaktierenden Bereich des Ventilhebels (1) Teilstücke (12, 13; 7, 8) aus zumindest einer Wand (5; 10, 11) des etwa U-förmigen Querschnitts nach unten geklappt sind, die die Führung des Ventilhebels (1) auf dem Ventilfuß (9) ermöglichen und wobei an Stelle der aus der Wand beziehungsweise den Wänden (5; 10, 11) geklappten Teilstücke (12, 13; 7, 8) Durchbrüche in der jeweiligen Wand vorliegen. - Ventilhebel nach Anspruch 1,
dadurch gekennzeichnet, daß die Drehachse, um die die Teilstücke (12, 13; 7, 8) nach unten geklappt sind, etwa parallel zur Längsachse des Ventilhebels verläuft. - Ventilhebel nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß der etwa U-förmige Querschnitt zumindest aus einer unteren, etwa horizontal verlaufenden Wand (5) und zwei seitlichen, etwa vertikal verlaufenden Wänden (7, 8) zusammengesetzt ist. - Ventilhebel nach Anspruch 3,
dadurch gekennzeichnet, daß die Teilstücke (12, 13) aus der unteren, etwa horizontal verlaufenden Wand (5) des U-förmigen Querschnitts nach unten herausgeklappt sind. - Ventilhebel nach Anspruch 3,
dadurch gekennzeichnet, daß die Teilstücke (7, 8) aus den zwei seitlichen, etwa vertikal verlaufenden Wänden (10, 11) des U-förmigen Querschnitts nach unten herausgeklappt sind.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19845489 | 1998-10-02 | ||
| DE19845489A DE19845489A1 (de) | 1998-10-02 | 1998-10-02 | Ventilhebel |
| PCT/EP1999/006848 WO2000020729A1 (de) | 1998-10-02 | 1999-09-16 | Ventilhebel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1117904A1 EP1117904A1 (de) | 2001-07-25 |
| EP1117904B1 true EP1117904B1 (de) | 2002-07-31 |
Family
ID=7883234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99946178A Expired - Lifetime EP1117904B1 (de) | 1998-10-02 | 1999-09-16 | Ventilhebel |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1117904B1 (de) |
| DE (2) | DE19845489A1 (de) |
| WO (1) | WO2000020729A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10043230A1 (de) | 2000-09-02 | 2002-03-14 | Stihl Maschf Andreas | Ventiltrieb mit einem Kipphebel |
| DE102006031030A1 (de) * | 2006-07-05 | 2008-01-10 | Schaeffler Kg | Schlepp-oder Kipphebel für einen Ventiltrieb einer Brennkraftmaschine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6062184A (en) * | 1995-11-23 | 2000-05-16 | Ina Walzlager Schaeffler Ohg | Rocker arm or finger lever formed by a chipless process |
| DE19750206A1 (de) * | 1997-11-13 | 1999-05-20 | Schaeffler Waelzlager Ohg | Spanlos geformter Schlepphebel |
-
1998
- 1998-10-02 DE DE19845489A patent/DE19845489A1/de not_active Withdrawn
-
1999
- 1999-09-16 DE DE59902220T patent/DE59902220D1/de not_active Expired - Lifetime
- 1999-09-16 EP EP99946178A patent/EP1117904B1/de not_active Expired - Lifetime
- 1999-09-16 WO PCT/EP1999/006848 patent/WO2000020729A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| EP1117904A1 (de) | 2001-07-25 |
| DE59902220D1 (de) | 2002-09-05 |
| WO2000020729A1 (de) | 2000-04-13 |
| DE19845489A1 (de) | 2000-04-06 |
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