EP0873468A1 - Drehschiebersteuerung für verbrennungsmaschinen und kolbenpumpen - Google Patents
Drehschiebersteuerung für verbrennungsmaschinen und kolbenpumpenInfo
- Publication number
- EP0873468A1 EP0873468A1 EP96932597A EP96932597A EP0873468A1 EP 0873468 A1 EP0873468 A1 EP 0873468A1 EP 96932597 A EP96932597 A EP 96932597A EP 96932597 A EP96932597 A EP 96932597A EP 0873468 A1 EP0873468 A1 EP 0873468A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotary valve
- cylinder head
- cylinder
- rotary
- sealing rings
- 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.)
- Granted
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
- F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
- F01L7/02—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves
- F01L7/028—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves having the rotational axis coaxial with the cylinder axis and the valve surface not surrounding piston or cylinder
-
- 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
- F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
- F01L7/10—Rotary or oscillatory slide valve-gear or valve arrangements with valves of other specific shape, e.g. spherical
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
Definitions
- the invention relates to a rotary valve control for internal combustion engines and piston pumps with a cylinder head, in which a rotationally symmetrical, dome-shaped, with a drive coupled to a rotary valve is rotatably arranged around the cylinder axis and in the cylinder head at least one inlet channel and at least one outlet channel provided, and one with the Inlet channel or the outlet channel corresponding control opening are provided, in which a freely rotatable sealing ring is arranged in the area of the inlet channel and the outlet channel at least on the side of the rotary valve facing the cylinder, the rotary valve is driven in the center and the cylinder head and the cylinder are provided with cooling channels on both sides of the rotary valve.
- This known rotary slide valve control has the disadvantage that the rotary slide valve does not have an adequate seal with respect to the openings in the cylinder head and is necessary for a long service life. In addition, the cooling of the rotary valve appears to be insufficient.
- the technical problem on which the invention is based is therefore to improve the known rotary slide control mentioned at the outset with regard to its reliability, resilience, service life and economy.
- the rotatable sealing rings have a multiple function. Because they are now driven mechanically or preferably hydraulically, regardless of the rotation of the rotary valve, they are also lubricated and cooled at the same time.
- the sealing rings on the outside i.e. the side of the rotary valve facing away from the cylinder, not only seal the rotary valve against the inlet and outlet channels, but they also act as axial bearings in order to dampen the pressure forces generated by the piston and acting on the rotary valve.
- the sealing rings which act as axial bearings, also prevent the rotary slide valve from vibrating when the load changes during operation of the device. This also allows the wall thickness of the rotary valve to be reduced, so that less heat is stored in it and the inertia forces caused by its mass are reduced.
- the suspension device which is activated in the drive of the rotary valve and acts in the direction of rotation, which can act mechanically or hydraulically, allows the circular speed of the rotary valve to fluctuate. Such a fluctuation is caused, for example, by the changing pressure conditions in the cylinder.
- the sprung drive of the rotary valve smoothes the rotary movement of the rotary valve and prevents shock loads on the drive system.
- the suspension unit can also be designed with springs that can be controlled in terms of their spring characteristics, in order to be able to adapt the motor characteristics to the requirements, for example when used in an internal combustion engine, and for example to be able to achieve a higher torque.
- Fig. 1 shows the longitudinal section along the line AB in Fig. 2 by an embodiment of the device according to the invention and Fig. 2 schematically shows the arrangement of the openings in
- Fig. 1 the cylinder 7 with the piston 9 arranged therein and the cylinder head 8 can be seen.
- Cylinder head 8 and cylinder 7 have cavities 10 for receiving coolant.
- the rotary valve 1 provided with a collar 11 is arranged in a correspondingly designed cavity between the cylinder 7 and the cylinder head 8.
- the upper end of the collar 11 is non-positively provided with a drive wheel 12.
- the middle part of the cylinder head 8 has a cup-shaped recess 13, in the bottom of which there is an opening for receiving an ignition device, for example a spark plug.
- the suspension device 16 is switched on between the drive wheel 12 and the collar 11.
- the exhaust port 6 can be seen, which is sealed against the rotary valve 1 by rotatable sealing rings 2 and 3. Sealing rings 14 and 15 are also provided for sealing the collar 11 with respect to the cylinder 7 and the cylinder head 8.
- the sealing rings 3 are simultaneously designed as thrust bearings so that they dampen the forces acting on the rotary valve from the compression. If a suspension device 16 which can be controlled during the operation of the device is used, the output stroke of the device can be influenced. This allows the operating characteristic to be adapted and, for example, a higher torque to be achieved.
- Fig. 2 shows a snapshot of the relative position of the opening 4 in the rotary valve 1 with respect to the intake port 5 and the exhaust port 6 in the cylinder head 8 at a certain rotational position of the rotary valve 1st
- the rotary valve 1 is arranged centrally to the cylinder head.
- the coolant contained in the cavities 10 cools the cylinder 7 and cylinder head 8 and thus also the rotary valve 1.
- the surfaces of the cylinder head 8 and the cylinder 7 ⁇ facing the rotary valve 1 are adapted to the dome shape of the rotary valve 1.
- the rotatable sealing rings 2 and 3 which - as shown - are installed on both sides of the inlet and outlet channel, ensure the necessary sealing during operation.
- the sealing rings can also be provided on one side only.
- the rotatable sealing rings 2, 3 sliding on the spherical surface of the rotary valve 1 form an essential advantage of the device.
- the degree of compression is not restricted by a glowing valve.
- the flow in the inlet and outlet channels is improved by approximately 40% compared to valve-operated inlet and outlet openings.
- the speed limit is shifted to higher speeds. The engine runs more smoothly and quietly. The better one Utilization of the fuel leads to environmental protection.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Rotary Pumps (AREA)
- Hydraulic Motors (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19535920A DE19535920C2 (de) | 1995-09-27 | 1995-09-27 | Drehschiebersteuerung für eine Verbrennungskraftmaschine oder eine Kolbenpumpe |
DE19535920 | 1995-09-27 | ||
PCT/EP1996/004194 WO1997012128A1 (de) | 1995-09-27 | 1996-09-26 | Drehschiebersteuerung für verbrennungsmaschinen und kolbenpumpen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0873468A1 true EP0873468A1 (de) | 1998-10-28 |
EP0873468B1 EP0873468B1 (de) | 2003-05-02 |
Family
ID=7773313
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96932597A Expired - Lifetime EP0873468B1 (de) | 1995-09-27 | 1996-09-26 | Drehschiebersteuerung für verbrennungsmaschinen und kolbenpumpen |
Country Status (6)
Country | Link |
---|---|
US (1) | US5996544A (de) |
EP (1) | EP0873468B1 (de) |
CN (1) | CN1202217A (de) |
DE (2) | DE19535920C2 (de) |
ES (1) | ES2196177T3 (de) |
WO (1) | WO1997012128A1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29901854U1 (de) * | 1999-02-03 | 2000-06-29 | Fink Gerhard | Brennkraftmaschine, Verdichter oder Pumpe mit, die Kanäle steuernden um die Achsen der Zylinder rotierenden und über eine Außenverzahnung direkt angetriebenen Drehschiebern |
DE19933925C2 (de) * | 1999-07-20 | 2003-06-05 | Matthias Lahr | Drehschieber zur Gaswechselsteuerung bei Brennkraftmaschinen |
CN1508401A (zh) * | 2002-12-13 | 2004-06-30 | 华志成 | 内燃机旋转阀片式配气机构的密封结构 |
US6976464B2 (en) * | 2003-05-28 | 2005-12-20 | Dragon America Motor Technologies, Inc. | Semi-rotating valve assembly for use with an internal combustion engine |
DE102007018433A1 (de) * | 2007-04-19 | 2008-10-30 | ThyssenKrupp Metalúrgica Campo Limpo Ltda. | Einlass- und Auslassventilanordnung für eine Verbrennungskraftmaschine |
US20100321433A1 (en) * | 2009-06-18 | 2010-12-23 | George Keith Parish | Multi-chip printhead array with reduced nozzle offset |
JP5275961B2 (ja) * | 2009-11-30 | 2013-08-28 | 本田技研工業株式会社 | 動弁機構の潤滑構造 |
US8151755B1 (en) | 2011-09-23 | 2012-04-10 | Advanced Engine Technologies LLC | Internal combustion engine |
US8347841B1 (en) | 2011-09-23 | 2013-01-08 | R. Dale Pelfrey | Internal combustion engine |
ITMI20112391A1 (it) * | 2011-12-27 | 2013-06-28 | Nuovo Pignone Spa | Dispositivi e metodi per attuare valvole |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE531687A (de) * | ||||
US1996200A (en) * | 1934-02-17 | 1935-04-02 | Hall Rotary Valve Motor Compan | Rotary valve engine |
US2247984A (en) * | 1938-05-20 | 1941-07-01 | Bensinger Wolf-Dietrich | Packing for rotary valves in internal combustion engines |
US2231547A (en) * | 1939-11-06 | 1941-02-11 | Arthur H O Brien | Internal combustion engine |
DE911791C (de) * | 1939-12-23 | 1954-05-20 | Versuchsanstalt Fuer Luftfahrt | Drehschiebersteuerung fuer Einspritzbrennkraftmaschinen |
SE347787B (de) * | 1968-03-09 | 1972-08-14 | E Lamperti | |
US4418658A (en) * | 1980-07-07 | 1983-12-06 | Diross James | Engine valve |
DE4312492A1 (de) * | 1993-04-16 | 1994-10-27 | Stanislav Franz Bartos | Schiebersteuerung für Viertaktmotoren und Beförderungspumpen in Trichterschieberform |
KR0133780B1 (ko) * | 1995-04-25 | 1998-04-25 | 전성원 | 논-밸브(Non Valve) 회전연소실 |
US5558049A (en) * | 1995-06-05 | 1996-09-24 | Dubose; G. Douglas | Variable orbital aperture valve system for fluid processing machines |
-
1995
- 1995-09-27 DE DE19535920A patent/DE19535920C2/de not_active Expired - Fee Related
-
1996
- 1996-09-26 WO PCT/EP1996/004194 patent/WO1997012128A1/de active IP Right Grant
- 1996-09-26 US US09/043,700 patent/US5996544A/en not_active Expired - Fee Related
- 1996-09-26 CN CN96198338A patent/CN1202217A/zh active Pending
- 1996-09-26 ES ES96932597T patent/ES2196177T3/es not_active Expired - Lifetime
- 1996-09-26 EP EP96932597A patent/EP0873468B1/de not_active Expired - Lifetime
- 1996-09-26 DE DE59610407T patent/DE59610407D1/de not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO9712128A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP0873468B1 (de) | 2003-05-02 |
CN1202217A (zh) | 1998-12-16 |
WO1997012128A1 (de) | 1997-04-03 |
US5996544A (en) | 1999-12-07 |
DE19535920A1 (de) | 1996-03-14 |
DE19535920C2 (de) | 1999-07-08 |
DE59610407D1 (de) | 2003-06-05 |
ES2196177T3 (es) | 2003-12-16 |
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