EP1213448A1 - Ventileinrichtung und Kolbenmaschine mit solcher Ventileinrichtung - Google Patents

Ventileinrichtung und Kolbenmaschine mit solcher Ventileinrichtung Download PDF

Info

Publication number
EP1213448A1
EP1213448A1 EP00204355A EP00204355A EP1213448A1 EP 1213448 A1 EP1213448 A1 EP 1213448A1 EP 00204355 A EP00204355 A EP 00204355A EP 00204355 A EP00204355 A EP 00204355A EP 1213448 A1 EP1213448 A1 EP 1213448A1
Authority
EP
European Patent Office
Prior art keywords
valve
conduct
piston
cylinder
valve arrangement
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.)
Withdrawn
Application number
EP00204355A
Other languages
English (en)
French (fr)
Inventor
Stefaan Koen De Rycke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RYCKE STEFAAN KOEN DE
Original Assignee
RYCKE STEFAAN KOEN DE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by RYCKE STEFAAN KOEN DE filed Critical RYCKE STEFAAN KOEN DE
Priority to EP00204355A priority Critical patent/EP1213448A1/de
Publication of EP1213448A1 publication Critical patent/EP1213448A1/de
Withdrawn legal-status Critical Current

Links

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
    • F01L1/28—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of coaxial valves; characterised by the provision of valves co-operating with both intake and exhaust ports
    • F01L1/285—Coaxial intake and exhaust valves
    • 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
    • F01L1/28—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of coaxial valves; characterised by the provision of valves co-operating with both intake and exhaust ports

Definitions

  • This invention relates to a valve arrangement containing at least two valves with a body and a seat.
  • a similar valve arrangement is used on for example piston mechanisms, where the head of cylinder contains two valves located next to each other closing either the inlet conduct or the outlet conduct.
  • each valve creates a ring-shaped passage in between the valve body and the valve seating located in the head of the cylinder.
  • the outer diameter of this ring-shape is limited to less than half of the diameter of the cylinder. Apart from the stroke of the valves the passage of valves is therefore rather limited.
  • valves are arranged inside each other, whereby the outer valve consists of a hollow body with passages, whereby part of this body creates the valve seating for the body of the inner valve.
  • the body of the outer valve is for instance funnel-shaped.
  • valves are concentric.
  • valves can be attached to the same conduct and replace for instance a non-return valve. In such cases normally only one valve is being used.
  • the valve arrangement with at least two valves according to the disclosure permits to increase sensibly the passage without occupying more space.
  • valve arrangement consists of at least two valves, it can also be connected to two different conducts, whereby one valve can close-off one conduct and an other valve can close-off the other conduct.
  • these valves can be actuated by a displacement mechanism like for instance a cam-shaft that can raise the bodies from their seats.
  • valve arrangements mounted in piston mechanisms contain one inlet valve and one outlet valve located next to each other in the head of the cylinder whereby, apart from the stroke of the valves, the passage of the valves is limited.
  • the outer valve can have a diameter which is approximately the same as the diameter of the cylinder, while the inner valve can contain a diameter which is approximately the same as the diameter of the embouchure of the passage of the outer valve. This way the passages can be maximised while the losses are minimised.
  • the displacement mechanism is capable of moving directly or indirectly either both valves, so the passage of the outer valve is open and the passage of the inner valve is closed-off, or only the inner valve so the passage of the inner valve is open and the passage of the outer valve is closed-off.
  • the piston mechanism can be a pump or explosion motor.
  • the piston mechanism can be an explosion motor and contain an ignition with inside the cylinder at least one ignition pole consisting of two co-operating contacts where in between an electrical tension can applied.
  • the gas mixture has to be brought to explosion, theoretically at the end of the compressing stroke when the piston at the top dead end. Because the explosion of the gas mixture can not take place instantly, generally the ignition is being initiated earlier meaning a few degrees before the piston reaches the top dead end. This deviation also means a certain, loss of power.
  • valves per cylinder are used to increase the passage of the inlet and outlet valves.
  • a special execution of the invention locates the ignition poles on the piston and/or on one of the valves preferably the inner valve.
  • a contact located on the piston can be isolated electrically from the piston.
  • Some existing explosion motors use several sparking-plugs per cylinder or sparking-plugs with several ignition poles allowing to have a faster ignition and bigger internal efficiency.
  • This outer valve 3 contains a hollow body 4, in the shown example funnel-shaped, this is a body 4 widening towards one end, containing an internal passage 5 that increases in diameter to said end and co-operates with a ring-shaped seat 6 located at the inside of conduct 1 that co-operates with the widest end of body 4.
  • this valve arrangement acts as a non-return valve, but with a double and thus bigger passage for the fluid when it flows in the opposite direction of the arrow 13.
  • One or both bodies 4 and 7 can have a spring pushing these bodies 4 and 7 in open or closed-off position when there is no or little flow.
  • the piston mechanism shown in these figures 2 to 5 is part of a four-stroke explosion engine and contains a number of cylinders 14, where there is only one visible in the figures, with movable pistons 15 connected through a connecting-rod 16 to a common crank-shaft 17 located in a crank-case.
  • the passage 5 is part of the first conduct 18 and the outer valve 3 creates a movable end of this conduct 18.
  • first conduct 18 is an outlet or pressure conduct and the inner valve 2 is the outlet valve.
  • the other conduct 19 consequently is the inlet or suction conduct and the outer valve the aspiring valve.
  • the outer valve 3 has a diameter which is practically equal to the diameter of the cylinder 14.
  • This valve 3 consists out of a funnel-shaped body 4 that widens in the direction of the inside of the cylinder 14 and is thus provided with a passage 5 widening towards this inside and a hollow stem 11 connected through arms 12 with the upper narrowest end of the body 4.
  • the inner valve 2 also consists out of a conical shaped body 7 and a stem 9 which moves through the hollow stem 11.
  • the seat 6 for the body 4 of the outer valve 3 is created by this part of the head of the cylinder 14 that is located around the embouchure of the conduct 19, while this body 4 forms the seat 8 for the body 7 of the inner valve 2 which can close-off the passage 5 through the body 4.
  • the difference between the inner diameters of said seats 6 and 8 is equal to the thickness of the widest end of the funnel-shaped body 4 and is relatively small.
  • this body 4 is a part of the conduct 18 and forms a telescopic end of it. For this reason the arms 12 can not close-off the passage 5.
  • the body 4 forms the effective part of the outer valve 3, and is of course movable, while the pressure conduct 18 at the inside of the head of the cylinder 14 is stationary, the narrow end of the body 4 has to stay in contact with the inner side of the stationary part of the pressure conduct 18 during the movement of the outer valve 3 to eliminate leaks between the pressure conduct 18 and the suction conduct 19.
  • the upper part of the stem 11 of the outer valve 3 has a thickened end 20. Between this thickened end 20 and the head of the cylinder, the stem 11 is surrounded by a spring 21 that pushes the valve 3 towards its closed-off position and consequently pushes the stem 11 outwardly with respect to the cylinder 14.
  • this end 20 is located in the curve of a cam 22, located on a cam-shaft 23 on top of the cylinder 14, that creates a displacement mechanism for the valves 2 and 3.
  • the stem 9 of the outlet valve 2 also has, at the location of said thickened end 20 of the stem 11 and inside of this stem 11 a thickened end 24. Between this thickened end 24 and an inside collar 25 of the stem 11, the stem 9 is surrounded by a spring 26 that pulls the body 7 towards the body 4 through the stem 9 while the thickened end 24 of the stem 9 is in a slot 27 in the thickened end 20.
  • this thickened end 24 there is a lever 28 of which one end is attached to a support 30, located on top of the cylinder through a pivot shaft 29, and of which the other end is bent.
  • This lever 28 also co-operates with the said cam 22.
  • the pivot shaft 29 is perpendicular to the stem 11 and parallel to the axis of the cam shaft and the lever 28 runs through the slot 27 of the thickened end 20.
  • the piston mechanism shown in the drawings also contains inside each cylinder 14 an ignition mechanism which only has been detailed in figure 4.
  • the ignition mechanism contains several, in the given example four, ignition poles created by pairs of co-operating and facing contacts 31 and 32 between which a tension is supplied.
  • the contacts 31, connected to a tension supply which is not shown in the figures, are sunk into the upper side of the piston 15 and insulated from the metal of the piston 15 by an electrically insulating material.
  • the contacts 31 are connected through a conducting ring 34 to a main conductor 35 that runs to the lower end of the piston where it connects to a flexible electrical power supply cable 36 to connect to a high-tension supply which is a coil.
  • the other contacts 32 which are connected to the mass of the cylinder 14 are located on the outside of the body 7 of the inner valve 2.
  • these contacts 32 can also be located on the piston 15. In another configuration both contacts 31 and 32 can be located on the piston.
  • the stem 11 is pushed, against a counter acting spring 21, together with the stem 9 over a determined distance, so that the body 7 stays in contact with the seat 8 which means that the outer valve 3, which is the inlet valve, opens but the other valve 2 still closes-off the passage 5 and consequently the pressure conduct 18.
  • the position of the pivot shaft 29 can be adjusted relative to the support 30 so the moment the lever 28 is pushed down by the cam 22 which is also the moment the inner valve is pushed down, can be changed.
  • crank-shaft 17 which rotates twice as fast as the cam shaft 23, moves the piston 15 in the direction indicated by the arrow 37 so that air or a mixture of fuel and air can be sucked through a relatively large aperture created by the open outer inlet valve 3.
  • combustion gasses can now be pushed through the said aperture by the piston 15 which moves in the direction indicated by the arrow 38.
  • valve arrangement creates, both during the suction of the gas mixture and the exhaust of the combustion gasses, relatively large passages, the pressure and filling losses are minimal. Actuating the valve stems with only one camshaft and only one cam per cylinder makes the construction relatively simple.
  • the inner and the outer do not necessarily have be the outlet and inlet valve. The opposite is possible if the way the valves are driven is adapted.
  • the drive arrangement is only shown as an example.
  • the cam shaft can also act differently on the valve shafts.
  • valve arrangement can also be applied to injection engines, where only air will be sucked through the suction conduct 19, and especially to diesel engines where the ignition arrangement is of course left out.
  • the number of valves surrounding each other is not limited to two. Inside this inner valve there can be a third valve. Also multiple of these valve arrangements can be located next to each other.
  • the invention can also be applied to other piston mechanisms such as piston pumps. In this case there of course also no ignition arrangement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lift Valve (AREA)
EP00204355A 2000-12-06 2000-12-06 Ventileinrichtung und Kolbenmaschine mit solcher Ventileinrichtung Withdrawn EP1213448A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00204355A EP1213448A1 (de) 2000-12-06 2000-12-06 Ventileinrichtung und Kolbenmaschine mit solcher Ventileinrichtung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00204355A EP1213448A1 (de) 2000-12-06 2000-12-06 Ventileinrichtung und Kolbenmaschine mit solcher Ventileinrichtung

Publications (1)

Publication Number Publication Date
EP1213448A1 true EP1213448A1 (de) 2002-06-12

Family

ID=8172385

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00204355A Withdrawn EP1213448A1 (de) 2000-12-06 2000-12-06 Ventileinrichtung und Kolbenmaschine mit solcher Ventileinrichtung

Country Status (1)

Country Link
EP (1) EP1213448A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012048507A1 (zh) * 2010-10-15 2012-04-19 Jin Beibiao 叠置气门机构

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2439618A (en) * 1946-02-15 1948-04-13 Felix J Cloutier Combination intake and exhaust valve for four-cycle engines
GB816392A (en) * 1954-07-02 1959-07-15 Alfred Johann Buchi Improvements in or relating to valves more particularly for internal combustion engines
US4450796A (en) * 1974-04-12 1984-05-29 Josef Schaich Four-stroke piston engine
US5357914A (en) * 1993-08-24 1994-10-25 Acro-Techn Inc. Vented valve mechanism for internal combustion engines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2439618A (en) * 1946-02-15 1948-04-13 Felix J Cloutier Combination intake and exhaust valve for four-cycle engines
GB816392A (en) * 1954-07-02 1959-07-15 Alfred Johann Buchi Improvements in or relating to valves more particularly for internal combustion engines
US4450796A (en) * 1974-04-12 1984-05-29 Josef Schaich Four-stroke piston engine
US5357914A (en) * 1993-08-24 1994-10-25 Acro-Techn Inc. Vented valve mechanism for internal combustion engines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012048507A1 (zh) * 2010-10-15 2012-04-19 Jin Beibiao 叠置气门机构

Similar Documents

Publication Publication Date Title
KR100710916B1 (ko) 분리형 4행정 사이클 내연 엔진
US6443110B2 (en) Rotary valve head system for multi-cylinder internal combustion engines
KR100612716B1 (ko) 압축비 가변 엔진
US5230314A (en) 4-cycle engine
US9828886B1 (en) High efficiency steam engine and steam expander
US4134381A (en) Rotary valve engine apparatus
JP2004278536A (ja) 往復内燃エンジン、その作動方法および充填物交換バルブのストローク機能調整装置
US3408991A (en) Oscillating machine
KR20130111560A (ko) 스플릿-사이클 공기 하이브리드 v-엔진
US6065440A (en) Internal combustion engine with binary cylinder sizing for variable power output
KR20160089385A (ko) 내연기관
WO2006038086A2 (en) V-twin configuration having rotary mechanical field assembly
EP1213448A1 (de) Ventileinrichtung und Kolbenmaschine mit solcher Ventileinrichtung
US6279518B1 (en) Rotary engine having a conical rotor
US10975798B2 (en) Enhanced piston for improving the efficiency of an internal combustion engine
CA2186548C (en) Internal combustion engine
US11506119B2 (en) Multiple cylinder engine
US6467455B1 (en) Four-stroke internal combustion engine
US6941903B2 (en) System and method for adding air to an explosion chamber in an engine cylinder
US7188598B2 (en) Rotary mechanical field assembly
US11603793B2 (en) Multiple cylinder engine
US11674434B2 (en) Multiple cylinder engine
GB2261025A (en) Four-stroke engine inlet and exhaust valving
US11635020B2 (en) Multiple cylinder engine
EP0713958A2 (de) Brennkraftmaschine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

AKX Designation fees paid
REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20021213