EP0750719B1 - Moteur a combustion interne, a obturateurs de distribution rotatifs - Google Patents

Moteur a combustion interne, a obturateurs de distribution rotatifs Download PDF

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Publication number
EP0750719B1
EP0750719B1 EP95914408A EP95914408A EP0750719B1 EP 0750719 B1 EP0750719 B1 EP 0750719B1 EP 95914408 A EP95914408 A EP 95914408A EP 95914408 A EP95914408 A EP 95914408A EP 0750719 B1 EP0750719 B1 EP 0750719B1
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EP
European Patent Office
Prior art keywords
rotary
exhaust
intake
internal combustion
combustion engine
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
Application number
EP95914408A
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German (de)
English (en)
French (fr)
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EP0750719A1 (fr
Inventor
Maurice Huwarts
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Individual
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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
    • F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
    • F01L7/18—Component parts, details, or accessories not provided for in preceding subgroups of this group
    • 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
    • F01L7/026—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves with two or more rotary valves, their rotational axes being parallel, e.g. 4-stroke
    • 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
    • F01L7/16—Sealing or packing arrangements specially therefor
    • 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 present invention relates to a motor with internal combustion, with distribution shutters rotary.
  • an internal combustion engine multicylinder including a group of cylinders in line of which the combustion chambers communicate, each, with an intake port and with an orifice on the one hand, and the exhaust ports, on the other hand, of said group cylinders being arranged in alignments, the means for opening and closing said intake and exhaust ports comprising two rotary nozzles, of section circular, each comprising a plurality aligned hollow shutters, rigidly connected to each other to others and communicating with each other, and whose wall side is provided with a plurality of lights spaced, angularly offset, and the number of which corresponds to that of the cylinders to be served, one of these rotary nozzles allowing the opening and closing the intake port alignment of the group of cylinders, while the second allows opening and closing the alignment of holes exhaust of said group of cylinders.
  • Each rotary nozzle consists of portions cylindrical cylinders of different diameters, gas passage lights being provided in the reduced diameter portions.
  • Each rotary nozzle of distribution is housed in a fixed sleeve and its larger diameter portions are sized to have a good rotation and sliding play fitted inside said fixed sheath, these portions being larger provided, in the vicinity of their ends, sealing rings to establish a gas tight seal.
  • the first cylinder is preferably supplied, then the second, then the third, etc.
  • An object of the present invention is to remedy to the drawbacks outlined above of multi-cylinder internal combustion, with rotary distribution, of the kind described previously.
  • gas circulation takes place at the same time, by inside and outside the nozzles of rotary distribution, in the space between these last and the internal surface of said collectors, in which the gas stream swirls (fuel and / or oxidizer), so that, in the case of power, all cylinders are powered substantially under the same conditions, both in volume as in the quality of the gas mixture, so that better combustion and better engine balance.
  • each intake port and exhaust is fitted with at least one movable seat allowing to modify the passage section of fluids, as well as when or when to close or the opening of said orifice, and means for adjustment allow to adjust the position of these seats mobile, these means comprising an installed cylinder, sealingly, through the sealing wall separating intake and exhaust manifolds, and in which is housed a piston subjected to the action of a compression spring tending to push it back into the direction of the exhaust manifold, one side at least this piston being connected, by means of a articulation, to a control rod itself connected to a rod wedged on a tree on which are also fixed rods connected, each, by through a transmission linkage to one at least mobile seats of at least one of rotary shutters.
  • Figure 1 is a longitudinal sectional view of the upper part of a cylinder fitted with a dispensing device according to the invention.
  • Figure 2 is a perspective view of a example of realization of a distributor nozzle rotary consisting of two shutters arranged in the extension of each other.
  • Figure 2bis represents, by two half-sections axial, two other examples of conformation of a rotary distributor nozzle consisting of two shutters assembled in the extension of each other.
  • Figure 3 is an axial sectional view of the nozzle for driving a rotary nozzle.
  • Figure 3bis is a front view of the end of this tip.
  • Figure 4 is an axial sectional view of a mode of the opposite end of the nozzle.
  • Figure 5 is a plan view in section of a distribution assembly according to the invention.
  • FIGS 6 to 9a illustrate the operation of the distribution system according to the invention.
  • FIG. 10 is a schematic view, in plan and in section, of an exemplary embodiment of rotary intake and exhaust nozzles fitted the top of a four-cylinder engine.
  • Figure 10a is a character view schematic and on a larger scale along the line 10 - 10 in Figure 10.
  • Figure 11 is a perspective view and section showing a system control device for adjusting the movable seats of the rotary shutters.
  • Figure 12 is a cross-sectional view a rotary shutter and its movable seats.
  • Figure 13 is a perspective view of one of these mobile seats.
  • Figure 14 is a front view of a flange lateral guide for mobile seats.
  • Figure 1 shows the top of a cylinder 1 and a cylinder head 2 attached to the part upper part of this cylinder and delimiting the combustion or explosion 3.
  • the holes are provided intake 4 and exhaust 5 themselves fitted with seats 6, 7, respectively, shutters.
  • the shutters are made up of elements rotary 8, 9, hollow, of circular section, in the side wall of which a light 10, 11 is formed, respectively, for each engine cylinder to be served or to serve. These shutters may have a shape cylindrical, or conical, or ovoid, even spherical.
  • two or more than two rotary shutters 8, 9 are assembled in succession and in alignment, by example by screwing or otherwise.
  • FIG. 2 illustrates two rotary shutters cylindrical 8a, 8b assembled one after the other and intended to equip a twin-cylinder engine.
  • the T sets thus produced will be referred to as of "rotary nozzles" in the following description, in order to facilitate description.
  • Figure 2bis shows two other examples of conformation of rotary distributor nozzle T consisting of two shutters 8 or 8 'assembled in the extension of each other, with an ability to sliding amplitude limited one compared to the other, by means of simple grooves 61, which solves problems that might result from the effects of dilation or a slight misalignment.
  • the shutters 8 of the lower half-section present a concave conformation, while the shutters 8 ' of the upper half cup have a shape bulging in their central part, such a shape increasing the capacity for introducing fresh gases in the cylinders.
  • each nozzle T-8 intake and each T-9 exhaust nozzle is depending on the number of engine cylinders.
  • the Figure 10 shows T-8 rotary intake nozzles and exhaust T-9 each consisting of a alignment of four shutters 8a, 8b, 8c, 8d, or 9a, 9b, 9c, 9d, respectively, whose lights 10a, 10b, 10c, 10d or 11a, 11b, 11c, 11d are offset by 90 degrees.
  • Shutters such as 8a, 8b, 8c, 8d, ...., thus aligned and united to each other in rotation, constitute a tubular assembly according to which said shutters are in communication permanent by their bore.
  • rotary nozzles T-8 and T-9 can be arranged and sized to serve or serve a variable number of cylinders whose axes may or may not be parallel.
  • Each nozzle T is, for example, made up of tubular parts in machined steel and the surfaces of which exterior and, if necessary, interior, can be provided, over all or part of their length, with a ceramic or other material coating capable of withstand thermal and other shocks during phases: explosion, detent and exhaust, in particular in the case of an internal combustion engine.
  • T-8 and T-9 nozzles are equipped with a designated drive and guide tip as a whole by the reference 12 (FIG. 3), while the opposite end of said nozzle can be provided with a closing end piece 13 (FIG. 5) which can consist of a simple fixed plate, sealingly, by screwing, on said end, or a tip 14 having an axial extension tubular 14a ( Figure 4) allowing, as appropriate, its connection, for example by means of a joint rotary, to a fuel mixture inlet pipe or to an exhaust pipe.
  • Each T-8 and T-9 rotary nozzle thus produced and equipped includes, depending on the mode of execution of Figures 2 and 5, at a distance from its portions provided with lights 10 or 11, parts of smaller diameter 15a, 15b, 15c ( Figure 2) on which are fixed the inner rings of bearings 16a, 16b, 16c guiding in rotation and positioning in translation of said nozzles.
  • the outer rings of these bearings are fixed to the housing wall described in the following of this presentation and arranged in cylinder head 2.
  • the aforementioned bearings could be replaced by rings.
  • Each bearing 16a, 16b, 16c or friction ring outer is surrounded by two eccentric rings and concentric 17, 18 at least one of which can be driven in rotation, with however a possibility limited angular movement.
  • This set, bearing and rings is maintained and guided, at the level of bearings, between two pairs of half-shells 19.
  • One half-shells from each of these pairs of half-shells 19 is provided with a lug 19a.
  • the axial positioning of the T-8 rotary nozzles, T-9 in their bearings 16a, 16b, 16c, is provided by a machined shoulder 22 on which one of the lateral faces of the cage of said bearings of which the other side is blocked by the end of the cage following rotary, or by a fixed ring 23 in what concerns the extreme bearing 16c.
  • the role of this ring, with regard to the front bearing 16a, is held by a shoulder 24 facing inwards, which has the end piece 12.
  • This end piece 12 has a smooth surface 25 on which the inner race of the bearing is mounted 16a and a shaft 26 on which is fixed, by example by keying, a toothed pulley 27 driven by toothed belt or a sprocket driven by chain.
  • the outer end 26a of this steel end-piece can be machined or shaped ( Figure 3bis) so to be able to drive an igniter, for example of the type Delco (Trademark) or other necessary device during engine operation.
  • an igniter for example of the type Delco (Trademark) or other necessary device during engine operation.
  • any engine necessarily having two nozzles rotary T-8 and T-9 we can plan to train one or two ignitors serving and supplying, by a circuit different, two candles 28 per cylinder, as we can understand it by considering Figures 1 and 5.
  • These candles 28 can be installed vertically or with a certain angle in the axial plane of the cylinder head, in two passages reserved in the latter and opening into the combustion chamber.
  • the second perforation in the cylinder head and ending in the combustion chamber can be used to house a glow plug or other.
  • end pieces 12 can be coupled to the pump drive device diesel engines or be used for other functions such as, for example, the command a direct injection device.
  • Greasing the nozzle guide bearings rotary is carried out from the lubrication network powered by the engine oil pump located in the Crankcase. Oil, through a through pipe in the bearings, retained by the half-shells 19 blocking concentric rings and outer cages bearings, fulfills its office and returns in the crankcase by another free duct and largely dimensioned.
  • Each obturator element of each of the nozzles T-8 and T-9 presents a cutout or light 10 or 11, respectively, carefully calibrated and sized and which, during the rotation of the nozzle, communicates periodically with one of the openings 4 or 5 opening in the combustion chamber of one of the cylinders, depending on the function assigned to the nozzle, this orifice being closed by the cylindrical wall of the shutter between two light passages.
  • T-8 intake and T-9 exhaust nozzles are placed in two neighboring shaped cavities cylindrical or others, formed in the cylinder head 2 and tightly separated from each other, these cavities constituting, respectively, the collector intake 31 and exhaust manifold 32.
  • These intake manifolds 31 and exhaust manifolds 32 consist of longitudinal chambers or spaces surrounding the rotary intake nozzles T-8 and T-9 exhaust, respectively, on the most much of their periphery, these rooms or longitudinal spaces allowing gas circulation outside and along said distributor nozzles. It is understood that, in this way, the gases can move freely both inside and outside outside the nozzles.
  • the cages 63 which ensure the positioning of the sets 16-17-18 constituting the bearings of said nozzles and more particularly the cages receiving intermediate bearings between cylinders, are not waterproof, but perforated or provided with passages 62 authorizing this free circulation ( Figures 10 and 10a).
  • the lights 10, 11 of each pair of shutters 8, 9 of the T-8 rotary distribution nozzles, T-9 have a position angularly offset one by report to each other, to allow them to complete the function assigned to them, ie "Admission” and "Escape", respectively.
  • the conduits supply and evacuation, communicating with 31 and 32 exhaust manifolds are connected to the side walls 21 of the one or more cylinder heads 2 or on the cover (s) 33 this or these, which may present ports 58a, 58b, respectively, for connection to fresh gas inlet or outlet pipes burnt gases (not shown).
  • This or these covers, on the upper part, joining in the axis of the waterproof central partition 34 separating the rotary nozzles T-8 and T-9, on the one hand, are fixed on one side on the latter, and for the other sides, screwed onto the or the cylinder heads leaving the heads of the tightening bolts and spark plug holes, injectors or others.
  • Figures 6-6a, 7-7a, 8-8a, 9-9a are views associated in pairs and of a schematic nature illustrating the four-stroke cycle of an internal combustion engine equipped with the dispensing device according to the invention, considering a single cylinder of said engine.
  • the piston P is at TDC (top dead center) at the end of its ascent stroke ending a four-stroke cycle.
  • Light 11 of the rotary exhaust shutter 9 still communicates with cylinder 1 while light 10 of the intake shutter 8 communicates with said cylinder.
  • the piston P descends, the rotary exhaust shutter 9 closes the orifice exhaust 5, while the rotary shutter 8 communicates through its lateral light 10, with cylinder 1 in which is sucked the fuel mixture.
  • the light 11 of the rotary exhaust shutter 9 comes into contact with the exhaust port 5 and allows the flow gases burnt to the outside under the effect of their trigger (advance to the shutter opening exhaust).
  • each inlet 4 and exhaust port 5 is equipped with at least one mobile seat 6 or 7 for adjusting the fluid passage section and preferably two movable seats capable of to be reconciled to decrease this section or distant from each other to increase it.
  • the adjustment of the dispensing device previously described is obtained by means of an adjustment system the position of seats 6 and 7 of the rotary shutters 8 and 9, respectively, to modify the fluid passage time by decreasing or increasing the section of the access opening to 4 and 5 intake ports. that adjusting the position of seats 6 and 7 allows also to adjust the moment or instant of the closing and / or opening the intake ports and exhaust.
  • the operating command allowing to modify, during movement, the position of the movable seats may be obtained thanks to the adjustment device described below and shown in Figure 11.
  • This very simple design device is consists of a cylinder 36 in machined metal, fixed through the sealed transverse wall 34 separating the collectors intake 31 and exhaust 32.
  • the cylinder 36 includes, for example in its intermediate part, a flange 37 provided with holes and allowing its fixing, by means of screws 38, to said wall.
  • the part of the cylinder located in the exhaust manifold 32 is preferably also reduced as possible.
  • the opposite bottom of the cylinder has a shoulder interior 46 against which one of the ends is wedged a compression spring 47 of which the other end bears against piston 42, this spring having the function of pushing said piston back direction of the exhaust manifold 32, when the pressures or depressions decrease or stop.
  • this spring (diameter, wire diameter, pitch and number of turns, length, material) are determined according to the use sought and the environment in which he works.
  • this spring can be changed by the simple addition of one or more shim washers placed in the bottom of the cylinder, against the shoulder 46.
  • the end of the spring facing inward of cylinder 36 is housed in a groove created in the bottom of the piston which also has a guide portion 42a of reduced diameter, oriented towards the shoulder 46 and opposing the possible buckling of said spring.
  • the plug 50 makes it possible to avoid displacement excessive piston 42 under the effect of spring 47. It also protects the piston from heat, while its central hole 39 allows both the travel of the rod 40a and the passage of the gases acting on the bottom of said piston.
  • the piston is provided, for example at neighborhood of each of its ends, of a segment seal 48 made of nitrided or other cast iron material.
  • the piston 42 also includes a peripheral recess 49 provided between the grooves of sealing segments 48, this recess being intended to be filled with T.H.T.grease, during assembly or possibly later, thanks to a greaser (not shown) opening into the cylinder 36.
  • the face of the piston 42 oriented towards the intake manifold 31 is preferably also subject, by means of a joint and, for example, by means of a ball joint, a rod 40b, comparable to the rod 40a, and itself connected to a rod-shaft-rod-similar assembly to that previously described.
  • Rods 40a and 40b may have an adjustable length and be arranged in any manner known per se to present this characteristic.
  • the shaft 45 is connected to the movable seats 6 and 7 of the shutters 8 and 9, respectively, via rods 59 and a rod 60, to the linkages of transmission 51 acting directly on said shutters and an embodiment of which is visible on the right part of figure 1.
  • These seats 6, 7 have a curved shape, as seen especially in Figures 1, 12 and 13.
  • This machining contributes to create a space regular between the T-8 or T-9 rotary nozzle and the mobile seats, respectively 6 or 7, whatever his position.
  • the displacement of these, under the action of the rods which control their movement, between the cylinder head and the rotary nozzle at which they are affected, is thus perfectly controlled.
  • Each end of a mobile seat is limited in its lateral displacement, by a lateral flange 52 which also serves to improve the seal between the mobile seat 6 or 7 and the rotary nozzle T-8 or T-9.
  • the lateral flanges 52 comprise, on their internal face, a curved groove 53 in which is engaged a lug 54 which laterally comprises the mobile seat 6 or 7 and which limits the displacement of said seat.
  • Seats 6 or 7, curved as shown previously, are extended, opposite their edge free, by spaced rods 55, also curved and arranged equidistant from the side edges said seats, these rods comprising a head 55a by through which they are connected, to by means of a joint, at the linkage 51 (side right of figure 1) or to the control levers 35 (left side of figure 1), depending on the option of command adopted to obtain the displacement of mobile seat elements 6 or 7.
  • the invention provides a significant improvement, compared to traditional distribution systems valves, because it allows the removal of these last and all of their springs or other reminder systems, which makes it possible to envisage a significant increase in the speed of rotation of engines and their performance.
  • This cavity by its shape and by its volume significantly higher than that required for good operation of the complete rotary assembly and its seats as well as all the bodies influencing the modification of their position, ensures free transfer of gases from any point to another inside this cavity, around the whole rotary and in the middle of the annex organs allowing and facilitating the flow of gases to the cylinders also powered from inside the rotary assembly.
  • It can be perforated as needed in multiple locations and connected in one or more points with external air or air inlets gas mixtures necessary for the proper functioning of the engine.
  • the other cavity forming a common collector 32 for the burnt gas outlet, contains the rotary assembly T-9 and its seats 6, 7 mobile or not, replacing the exhaust valves and all devices operation of the latter.
  • This cavity 32 whose shape and volume may be totally different from those in the cavity 31, must very easily contain the rotary assembly, the movable seats or not, as well as all the organs influencing the change in position of these last ; it ensures the free transfer of gases burnt, from one place to another, inside of this cavity, around the rotary assembly and at middle of the appendices, allowing and facilitating the path of the burnt gases from the cylinders to exterior, greatly improving their evacuation, also through the interior of the rotary assembly.
  • It can also be perforated according to the needs in multiple places and connected in one or several points with one or more conduits gas outlet.
  • the implementation of the invention does not require substantial changes.
  • the external parts of the cylinder head (s) may, however, in this case, have fins of appropriate shapes and dimensions to remove excess calories and ensure good cooling of the cylinder head (s) of this type engine.
  • This middle partition is also used in the other direction, to a transfer of appreciable frigories, thus allowing cooling of the burnt gases.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
EP95914408A 1994-03-25 1995-03-23 Moteur a combustion interne, a obturateurs de distribution rotatifs Expired - Lifetime EP0750719B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9403932A FR2717857B1 (fr) 1994-03-25 1994-03-25 Moteur à combustion interne, à obturateurs de distribution rotatifs.
FR9403932 1994-03-25
PCT/FR1995/000362 WO1995026460A1 (fr) 1994-03-25 1995-03-23 Moteur a combustion interne, a obturateurs de distribution rotatifs

Publications (2)

Publication Number Publication Date
EP0750719A1 EP0750719A1 (fr) 1997-01-02
EP0750719B1 true EP0750719B1 (fr) 1998-06-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP95914408A Expired - Lifetime EP0750719B1 (fr) 1994-03-25 1995-03-23 Moteur a combustion interne, a obturateurs de distribution rotatifs

Country Status (7)

Country Link
US (1) US5690069A (ja)
EP (1) EP0750719B1 (ja)
JP (1) JPH09510765A (ja)
AU (1) AU2141795A (ja)
DE (1) DE69503042T2 (ja)
FR (1) FR2717857B1 (ja)
WO (1) WO1995026460A1 (ja)

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Publication number Priority date Publication date Assignee Title
US6029617A (en) * 1998-05-12 2000-02-29 Lambert; Steven Modular rotary discoid valve assembly for engines and other applications
US6119726A (en) * 1999-06-24 2000-09-19 Warner Instrument Corporation Apparatus for effecting transfer of fluid from any one of a plurality of fluid sources to a single fluid outlet
US6443110B2 (en) 1999-12-10 2002-09-03 Jamal Umar Qattan Rotary valve head system for multi-cylinder internal combustion engines
US6578538B2 (en) * 2001-04-02 2003-06-17 O. Paul Trentham Rotary valve for piston engine
GB0218674D0 (en) * 2002-08-12 2002-09-18 Boulton Andrew J Improvements in or relating to internal combustion engines
WO2006096850A2 (en) * 2005-03-09 2006-09-14 Zajac Optimum Output Motors, Inc. Internal combustion engine and method
US7140342B1 (en) * 2005-09-01 2006-11-28 Murray Michael J Slotted cylindrical tube rotary valve assembly
WO2009039877A1 (de) * 2007-09-19 2009-04-02 Lisa Dräxlmaier GmbH Zylinderkopf für einen verbrennungsmotor
US9249693B2 (en) * 2008-12-22 2016-02-02 Warren Engine Company, Inc. Opposed piston diesel engine
US10711667B2 (en) * 2018-01-31 2020-07-14 Jonathan TAVERNIER Internal combustion engine with tubular valves and braking system
CN109441586A (zh) * 2018-12-29 2019-03-08 郑二帅 一种基于内燃机的进、排气方式

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FR479778A (fr) * 1915-09-18 1916-05-10 John Palmer Wilson Perfectionnements aux tiroirs rotatifs pour moteurs à combustion interne
FR514480A (fr) * 1919-02-10 1921-03-11 Peter Francis Daniel Tiroir pour moteurs à combustion interne et autres moteurs
GB143345A (en) * 1919-03-19 1920-05-27 Bernard Llewellyn Middleton Improvements in the valves of internal combustion engines
US2730088A (en) * 1954-08-12 1956-01-10 Hamilton D Hazlehurst Rotary valve-type engine
US3203409A (en) * 1963-07-09 1965-08-31 Georgia Tech Res Inst Apparatus for controlling the air taken into the combustion chambers of a spark ignition internal combustion engine
US3948227A (en) * 1974-03-08 1976-04-06 Guenther William D Stratified charge engine
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DE3515262A1 (de) * 1984-06-20 1986-01-09 Frank 4330 Mülheim Warzecha Drehschieber
ES2005120A6 (es) * 1987-03-30 1989-03-01 Ocana Triguero Felix Sistema de admision y escape por eje de lumbreras rotativas en motores de explosion de cuatro tiempos
US5448971A (en) * 1990-06-20 1995-09-12 Group Lotus Limited Internal combustion engine and an improved rotary inlet valve for use therewith
BE1005985A3 (fr) * 1992-06-10 1994-04-12 Discry Joseph Dispositif pour distribution rotative.
US5361739A (en) * 1993-05-12 1994-11-08 Coates George J Spherical rotary valve assembly for use in a rotary valve internal combustion engine
US5572967A (en) * 1994-08-26 1996-11-12 Three Star Enterprises, Inc. Variable roller valve system for internal combustion engine

Also Published As

Publication number Publication date
FR2717857A1 (fr) 1995-09-29
JPH09510765A (ja) 1997-10-28
FR2717857B1 (fr) 1996-04-26
DE69503042T2 (de) 1999-03-18
US5690069A (en) 1997-11-25
EP0750719A1 (fr) 1997-01-02
AU2141795A (en) 1995-10-17
DE69503042D1 (de) 1998-07-23
WO1995026460A1 (fr) 1995-10-05

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