WO1984000401A1 - Device for adaptive distribution - Google Patents

Device for adaptive distribution Download PDF

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Publication number
WO1984000401A1
WO1984000401A1 PCT/RO1982/000005 RO8200005W WO8400401A1 WO 1984000401 A1 WO1984000401 A1 WO 1984000401A1 RO 8200005 W RO8200005 W RO 8200005W WO 8400401 A1 WO8400401 A1 WO 8400401A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
floating
dise
seat
adaptive distribution
Prior art date
Application number
PCT/RO1982/000005
Other languages
French (fr)
Inventor
Vasile Dumitrescu
Original Assignee
Pitesti Autoturisme
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 Pitesti Autoturisme filed Critical Pitesti Autoturisme
Priority to PCT/RO1982/000005 priority Critical patent/WO1984000401A1/en
Priority to EP82902096A priority patent/EP0113339A1/en
Publication of WO1984000401A1 publication Critical patent/WO1984000401A1/en

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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
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/06—Valve members or valve-seats with means for guiding or deflecting the medium controlled thereby, e.g. producing a rotary motion of the drawn-in cylinder charge
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the present invention refers to a device for the achievement of an adaptive distribution by means of valves especially fitted for internal combustion engines for the purpose of correlating the flow of fresh fuel mixture to the cylinders with the engine operating conditions, as well as for the improvement of air-fuel mixture development conditions.
  • Thiese devices have some disadvantages, since they reduce the rate of cylinder filling up, by that that they delay the inlet of fresh fuel in the cylinders due to the retention of the sliding dise on the seat during the first phase of the intake stroke, due also to the reduction of the passing section and increasing gas-dynamic loses, and to a low performance. Disclosure of the Invention
  • the device for adaptive distribution of the invention eliminâtes the above mentioned disadvantages by that that for correlating the filling up of engine cylinders in accordance, with the demands of engine operating conditions, for homogenizing the fuel mixture, as well as for the reduction of fuel consumption, it consists in a valve stem guide through which passes a valve spindle of a valve which has the only role of limitation and reset, between a seat and a valve is a floating dise, the valve seating on a portion of the floating disc, between the tab of the floating dise and the valve stem guide existing, or not, a spring.
  • the device for adaptive distribution has the fallowing advantages; - reduces the fuel consumption;
  • the device for adaptive distribution of the invention is located in a cylinder head 1 where through a valve stem guide 2 passes a valve spindle 3 of a valve 4. Between a seat 5 and valve 4 is located a floating dise 6 .
  • Valve 4 seats on a portion a of the floating dise 6, portion a being in fact the seat of valve 4.
  • Valve 4 which in faet doesn't control the transfer of gases but only plays the role of limitation and reset, is driven by the classic distribution mechanism and its movement does not allow intake of fresh fuel flow into the engine cylinders as long.
  • the floating dise 6 is retained on seat 5, this faet being of the most importance and advantageous in the same time for slow up, forced idling or engine stopping conditions.By progressive descendence of the floating dise 5, under the corroborate action of the depression created in the engine cylinders together with the one created by a spring 7, which seats on the tab b of the floating dise 6, this one descends falloviing the valve 4, the stroke of the floating dise 6 being limited by the position of valve 4 , allowing the intake of fresh fuel mixture through the section thus created bet ⁇ een seat 5 and floating dise 6 mhose value is function of reciproeal positions of valve 4 and floating dise 6.
  • the reseating of floating dise 6 on the seat 5 is done either by its driving by valve 4 in its return stroke
  • the device with floating dises without spring, of the second embodiment, according to figure two has, from the construction point of view, the same elements as the first embodiment except for the fact that between the floating dise 6 and the valve stem guide 2 , there is no spring the opening of the floating dise 5, for the inlet of fresh fuel mixture being exclusively done due to the depression existing in the cylinder.
  • the device of the invention assures an optimal exploitation of the engine reducing the nocive exhaustion gases and reducing in the mean time the fuel consumption by 20 - 25%.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

The device for adaptive distribution by means of valves is especially used at the internal combustion engines, for the correlation of fresh fuel entered in the cylinders with the operating conditions of the engine as well as for a better air-fuel mixture, being located in the cylinder head (1), consisting of a valve (4) having the only role of re-seating a valve disc (6) which floats between the cylinder head seat (5) and the valve (4).

Description

DEVICE FOR ADAPTIVE DISTRIBUTION DEVICE FOR ADAPTIVE DISTRIBUTION
Technical field:Technical field:
The présent invention refers to a device for the achievement of an adaptive distribution by means of valves especially fitted for internal combustion engines for the purpose of correlating the flow of fresh fuel mixture to the cylindres with the engine operating conditions,as well as for the improvement of air-fuel mixture development conditions. Background ArtThe present invention refers to a device for the achievement of an adaptive distribution by means of valves especially fitted for internal combustion engines for the purpose of correlating the flow of fresh fuel mixture to the cylinders with the engine operating conditions, as well as for the improvement of air-fuel mixture development conditions. Background Art
There are already known différent devices for adaptive distribution,which use, in this sensé, a conventional valve, as well as a sliding disc,which has, as the valve does, a sealing-seating surface, on a common seat.The sliding disc,located above the conventional valve coaxial with this one, is maintained in contact with the common seat by means of a spring having on opposed action in relation with the inertia effect obtained through the piston movement during the intaice stroke.There are already known different devices for adaptive distribution, which use, in this sensé, a conventional valve, as well as a sliding disc, which has, as the valve does, a sealing-seating surface, on a common seat. , located above the conventional valve coaxial with this one, is maintained in contact with the common seat by means of a spring having on opposed action in relation with the inertia effect obtained through the piston movement during the intaice stroke.
Thèse devices hâve some disadvantages, since they reduce the rate of cylinder filling up, by that that they delay the inlet of fresh fuel in the cylinders due to the rétention of the sliding dise on the seat during the first phase of the intake stroke, due also to the réduction of the passing section and increasing gas-dynamic loses, and to a low performance. Disclosure of the InventionThèse devices have some disadvantages, since they reduce the rate of cylinder filling up, by that that they delay the inlet of fresh fuel in the cylinders due to the retention of the sliding dise on the seat during the first phase of the intake stroke, due also to the reduction of the passing section and increasing gas-dynamic loses, and to a low performance. Disclosure of the Invention
The device for adaptive distribution of the invention, éliminâtes the above mentioned disadvantages by that that for correlating the filling up of engine cylinders in accordance,with the demands of engine operating conditions,for homogenizing the fuel mixture, as well as for the réduction of fuel consumption, it consists in a valve stem guide through which passes a valve spindle of a valve which has the only rôle of limitation and reset,between a seat and a valve is a floating dise, the valve seating on a portion of the floating disc,between the tab of the floating dise and the valve stem guide existing, or not, a spring.The device for adaptive distribution of the invention, eliminâtes the above mentioned disadvantages by that that for correlating the filling up of engine cylinders in accordance, with the demands of engine operating conditions, for homogenizing the fuel mixture, as well as for the reduction of fuel consumption, it consists in a valve stem guide through which passes a valve spindle of a valve which has the only role of limitation and reset, between a seat and a valve is a floating dise, the valve seating on a portion of the floating disc, between the tab of the floating dise and the valve stem guide existing, or not, a spring.
The device for adaptive distribution, according to the invention,has the fallowing advantages; - reduces the fuel consumption;The device for adaptive distribution, according to the invention, has the fallowing advantages; - reduces the fuel consumption;
- realises the fuel mixture homogeneity;- realize the fuel mixture homogeneity;
- reduces the polluting émissions of discharged gases; - permits an increase in the compression ratio. Brief description of drawings Further on are given two embodiaents of the device according to figures 1 - 2 vjhich represent:- reduces the polluting emissions of discharged gases; - permits an increase in the compression ratio. Brief description of drawings Further on are given two embodiaents of the device according to figures 1 - 2 vjhich represent:
- fig.1 - schematic sectional view through a device with floating dises and spring;- fig. 1 - schematic sectional view through a device with floating dises and spring;
- fig.2 - schematic sectional view through a device with floating dises without spring;- fig. 2 - schematic sectional view through a device with floating dises without spring;
Best mode of carrying out the inventionBest mode of carrying out the invention
The device for adaptive distribution of the invention according to figure 1, is located in a cylinder head 1 where through a valve stem guide 2 passes a valve spindle 3 of a valve 4.Between a seat 5 and valve 4 is located a floating dise 6.The device for adaptive distribution of the invention according to figure 1, is located in a cylinder head 1 where through a valve stem guide 2 passes a valve spindle 3 of a valve 4. Between a seat 5 and valve 4 is located a floating dise 6 .
Valve 4 seats on a portion a of the floating dise 6, portion a being in fact the seat of valve 4.Valve 4 seats on a portion a of the floating dise 6, portion a being in fact the seat of valve 4.
Valve 4, which in faet doesn't control the transfer of gases but only plays the rôle of limitation and reset,is driven by the classic distribution mechanism and its movement does not allow intake of fresh fuel flow into the engine cylindres as long .es the floating dise 6 is retained on seat 5,this faet being of the most importance and advantageous in the same time for slow up, forced idling or engine stopping conditions.By progressive descendence of the floating dise 5, under the corroborate action of the dépression created in the engine cylinders together with the one created by a spring 7, which seats on the tab b of the floating dise 6,this one descends falloviing the valve 4, the stroke of the floating dise 6 being limited by the position of valve 4, allowing the intake of fresh fuel mixture through the section thus created bet^een seat 5 and floating dise 6 mhose value is function of reciproeal positions of valve 4 and floating dise 6. The reseating of floating dise 6 on the seat 5 is done either by its driving by valve 4 in its return stroke, or in advance by gases pressure action at the begining of the compression stroke.Spring 7,aids to the détachement of floating dise 6 from the seat 5.Valve 4, which in faet doesn't control the transfer of gases but only plays the role of limitation and reset, is driven by the classic distribution mechanism and its movement does not allow intake of fresh fuel flow into the engine cylinders as long. the floating dise 6 is retained on seat 5, this faet being of the most importance and advantageous in the same time for slow up, forced idling or engine stopping conditions.By progressive descendence of the floating dise 5, under the corroborate action of the depression created in the engine cylinders together with the one created by a spring 7, which seats on the tab b of the floating dise 6, this one descends falloviing the valve 4, the stroke of the floating dise 6 being limited by the position of valve 4 , allowing the intake of fresh fuel mixture through the section thus created bet ^ een seat 5 and floating dise 6 mhose value is function of reciproeal positions of valve 4 and floating dise 6. The reseating of floating dise 6 on the seat 5 is done either by its driving by valve 4 in its return stroke, or in advance by gases pressure action at the begining of the compression stroke Spring 7, aids to the detachment of floating dise 6 from the seat 5.
The device with floating dises without spring, of the second embodiment, according to figure two,has,from the construction point of view , the same éléments as the first embodiment except for the fact that between the floating dise 6 and the valve stem guide 2, there is no spring the opening of the floating dise 5, for the inlet of fresh fuel mixture being exclusively done due to the dépression existing in the cylinder.The device with floating dises without spring, of the second embodiment, according to figure two, has, from the construction point of view, the same elements as the first embodiment except for the fact that between the floating dise 6 and the valve stem guide 2 , there is no spring the opening of the floating dise 5, for the inlet of fresh fuel mixture being exclusively done due to the depression existing in the cylinder.
The device of the invention assures an optimal exploitation of the engine reducing the nocive exhaustion gases and reducing in the mean time the fuel consumption by 20 - 25 %.The device of the invention assures an optimal exploitation of the engine reducing the nocive exhaustion gases and reducing in the mean time the fuel consumption by 20 - 25%.
It allows the développent of compression ratio assuring a optimal corrélation of the transmision sistem. It allows the develop of compression ratio assuring a optimal correlation of the transmision sistem.

Claims

C L A I M S
1. Device for adaptive distribution,by means of valves,especially for internal combustion engines,Iocated in the cylinder head, characterised by that that for the corrélation of the engine filling up according to its operating conditions,for the fuel mixture homogeneity,as well as for the réduction of fuel consumption, consists in a valve stem guide (2) through which passes a valve spindle (3) of 3 valve (4) which plays only the rôle of limitation and reset,between a seat (5) and valve (4) is locoted a floating dise (6) ,valve (4) seating on a portion (a) of the floating dise (6) and up on the top of the floating disc(6) is located a tab (b) of the floating dise (c) and the valve
Figure imgf000006_0001
(2) being Iocated a spring (7) .1. Device for adaptive distribution, by means of valves, especially for internal combustion engines, Iocated in the cylinder head, characterized by that that for the correlation of the engine filling up according to its operating conditions, for the fuel mixture homogeneity, as well as for the reduction of fuel consumption, consists in a valve stem guide (2) through which passes a valve spindle (3) of 3 valve (4) which plays only the role of limitation and reset, between a seat (5) and valve (4) is locoted a floating dise (6), valve (4) seating on a portion (a) of the floating dise (6) and up on the top of the floating disc (6) is located a tab (b) of the floating dise (c) and the valve
Figure imgf000006_0001
(2) being Iocated a spring (7).
2. Device for adaptive distribution, of claims 1 characterised by that that the fiasting disc (6) is freely mounted on the velve spindle (3) of the valve (4) , being driven only by the cylinder pressure variation in a space limited by seat (5) and valve (4) . 2. Device for adaptive distribution, of claims 1 characterized by that that the fiasting disc (6) is freely mounted on the velve spindle (3) of the valve (4), being driven only by the cylinder pressure variation in a space limited by seat (5) and valve (4).
PCT/RO1982/000005 1982-07-10 1982-07-10 Device for adaptive distribution WO1984000401A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/RO1982/000005 WO1984000401A1 (en) 1982-07-10 1982-07-10 Device for adaptive distribution
EP82902096A EP0113339A1 (en) 1982-07-10 1982-07-10 Device for adaptive distribution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/RO1982/000005 WO1984000401A1 (en) 1982-07-10 1982-07-10 Device for adaptive distribution

Publications (1)

Publication Number Publication Date
WO1984000401A1 true WO1984000401A1 (en) 1984-02-02

Family

ID=20094876

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RO1982/000005 WO1984000401A1 (en) 1982-07-10 1982-07-10 Device for adaptive distribution

Country Status (2)

Country Link
EP (1) EP0113339A1 (en)
WO (1) WO1984000401A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4836154A (en) * 1987-08-18 1989-06-06 Bergeron Charles W Poppet valve assembly with apertures
GB2341891A (en) * 1998-09-23 2000-03-29 Rover Group A poppet valve for an internal combustion engine having a protuberance on its valve head

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE108815C (en) * 1899-06-01
DE460151C (en) * 1926-11-02 1928-05-22 Paul Schauer Inlet valve for internal combustion engines
US1722799A (en) * 1921-06-18 1929-07-30 Sunbeam Electric Mfg Company Valve mechanism
DE948205C (en) * 1954-11-05 1956-08-30 Augsburg Nuernberg A G Zweigni Valve provided with a deflecting screen, in particular an inlet valve, of internal combustion engines
US3995609A (en) * 1975-04-21 1976-12-07 General Motors Corporation Internal combustion engine fuel control arrangement

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE108815C (en) * 1899-06-01
US1722799A (en) * 1921-06-18 1929-07-30 Sunbeam Electric Mfg Company Valve mechanism
DE460151C (en) * 1926-11-02 1928-05-22 Paul Schauer Inlet valve for internal combustion engines
DE948205C (en) * 1954-11-05 1956-08-30 Augsburg Nuernberg A G Zweigni Valve provided with a deflecting screen, in particular an inlet valve, of internal combustion engines
US3995609A (en) * 1975-04-21 1976-12-07 General Motors Corporation Internal combustion engine fuel control arrangement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4836154A (en) * 1987-08-18 1989-06-06 Bergeron Charles W Poppet valve assembly with apertures
GB2341891A (en) * 1998-09-23 2000-03-29 Rover Group A poppet valve for an internal combustion engine having a protuberance on its valve head

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Publication number Publication date
EP0113339A1 (en) 1984-07-18

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