WO2020201649A1 - Plenum articulé - Google Patents
Plenum articulé Download PDFInfo
- Publication number
- WO2020201649A1 WO2020201649A1 PCT/FR2020/050497 FR2020050497W WO2020201649A1 WO 2020201649 A1 WO2020201649 A1 WO 2020201649A1 FR 2020050497 W FR2020050497 W FR 2020050497W WO 2020201649 A1 WO2020201649 A1 WO 2020201649A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- plenum
- valve
- actuator
- troncospheric
- cylinder head
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G1/00—Hot gas positive-displacement engine plants
- F02G1/02—Hot gas positive-displacement engine plants of open-cycle type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G2250/00—Special cycles or special engines
- F02G2250/03—Brayton cycles
Definitions
- the present invention relates to an articulated plenum intended in particular to improve the heat engine with transfer-expansion and regeneration, the subject of patent WO2016 / 120560 belonging to the applicant, said patent resulting from the French patent published on August 5, 2016 under the No. FR 3032236.
- the articulated plenum which is the subject of the present invention can be favorably combined with the double-acting pressure reducing cylinder with adaptive support which is the subject of patent WO2017 / 046479 which also belongs to the applicant.
- Patent WO2017 / 046479 allows the rigid assembly formed by a cylinder barrel, a lower cylinder head and an upper cylinder head that comprises the transfer-expansion and regeneration engine, the subject of patent WO2016 / 120560 to expand freely under the effect of temperature relative to a transmission housing to which it is fixed, without compromising the proper functioning of a piston which moves in said cylinder barrel.
- French patent application No. 1759206 discloses in particular that the lower cylinder head of the expansion cylinder and the upper cylinder head of the expansion cylinder can each receive actuator cartridges which are plated - via plate stops on the cylinder head with which they cooperate - on the one hand, a lower cartridge retaining plate as regards the lower cylinder head of the expansion cylinder and on the other hand, an upper cartridge retainer plate as regards the upper cylinder head of the expansion cylinder, said plates tending to be brought together by plate tie rods.
- patent WO2017 / 046479 and French patent application No. 1759206 suggest that the intake ducts of the transfer-expansion and regeneration engine which convey gases at high temperature are integrated into the lower and upper cylinder heads of said cylinder head.
- motor which are advantageously made - according to patent WO2018 / 154214 - in cast iron or stainless steel maintained at a temperature of the order of seven hundred degrees Celsius.
- transfer-expansion and regeneration can be brought to a higher temperature because they convey gases at high temperature which must be avoided to cool. Obviously, this temperature should be as close as possible to that of said gases, that is, for example, one thousand three hundred degrees Celsius. Indeed, if the temperature of said conduits is equivalent to those of the gases which they convey, said gases cannot give up heat to said conduits. Minimizing the heat transfer between gas and ducts is favorable to the final energy efficiency of the transfer-expansion and regeneration engine.
- patent WO2017 / 046479 allows the rigid assembly formed of the cylinder barrel, the lower cylinder head and the upper cylinder head of the transfer-expansion and regeneration engine to expand freely relative to the crankcase transmission to which it is attached.
- said patent does not specify how the intake ducts of said engine are connected to its heat source which may for example consist of a burner.
- the distance between the respective intake ducts of the lower and upper cylinder heads of said engine is likely to vary significantly due to the expansion of the rigid assembly formed of the cylinder barrel, the lower cylinder head and the upper cylinder head.
- French patent application No. 1759206 which describes a regenerative valve hydraulic actuator provides an actuator cartridge which is mounted on the expansion cylinder assembly of the transfer-expansion and regeneration heat engine, said cartridge comprising a valve cage housed either in the lower cylinder head of the expansion cylinder, or in the upper cylinder head of the expansion cylinder.
- the valve which makes it possible to open or close the intake duct can be guided directly or indirectly in said cage which accommodates a valve seat, the latter and / or the part of the valve cage which guides said valve being able to be cooled by a valve cooling circuit in which a coolant circulates.
- the cage thus maintained at low temperature offers a heat exchange surface for the gases which circulate in the inlet duct and which are brought to high temperature. This configuration thus promotes the cooling of said gases and therefore, harms the final energy efficiency of the transfer-expansion and regeneration engine.
- the intake ducts of the transfer-expansion and regeneration engine with respect to the lower or upper cylinder head with which they cooperate in a on the one hand, and relative to the heat source on the other hand, this so that the rigid assembly formed of the cylinder barrel, the lower cylinder head and the upper cylinder head of said engine on the one hand, and the heat source d 'on the other hand, can freely expand relative to each other without said intake ducts preventing them, and without mechanically constraining said ducts;
- articulated plenum according to the invention is primarily intended for the transfer-expansion and regeneration heat engine, the subject of patent WO2016 / 120560 belonging to the applicant.
- said plenum can also be applied without restriction to any gas duct brought to high temperature, the opening and closing of said duct being controlled by a valve, and said duct connecting together components liable to expand. or move relative to each other.
- the articulated plenum according to the present invention is provided for a heat engine with transfer-expansion and regeneration, the double-acting piston of the pressure reducing valve moves in an expansion valve cylinder, the latter constituting, with an upper cylinder head of the expansion valve and a lower cylinder head of the expansion valve, a cylinder-cylinder head assembly for an expansion valve, said engine comprising a compressor which compresses a working gas before expelling it into a regeneration heat exchanger in which said gas is preheated while on leaving said exchanger, said gas is superheated by a heat source before being introduced - via a burner outlet duct then an inlet duct and by an inlet valve controlled by a Intake valve actuator - into the expansion valve cylinder to be relaxed there and produce work on a power output shaft, said gas then being expelled from the expansion valve cylinder before being re-introduced into the heat exchanger of regeneration to be cooled there by releasing part of its heat to the working gas which enters said exchanger to be preheated therein, said
- a hollow plenum body which forms the inlet duct and which comprises a plenum inlet port which communicates with the heat source, a plenum outlet port which opens into the regulator cylinder via either the cylinder head upper regulator is the lower cylinder head of the regulator, and an actuator port which receives the inlet valve actuator;
- a valve seat arranged in the vicinity of the plenum outlet opening, the
- inlet valve capable of resting on said seat to close off said orifice
- Containment means which on the one hand keep the troncospheric end on the burner side pressed against the complementary troncospheric surface on the burner side, and which on the other hand keep the troncospheric end on the cylinder head side pressed against the complementary troncospheric surface on the side cylinder head.
- the articulated plenum according to the present invention comprises a valve seat which has a complementary troncospheric surface on the seat side which cooperates with a troncospheric bearing on the valve side provided at the end of the valve
- the articulated plenum comprises an intake valve which comprises a valve stem which can translate along its longitudinal axis in or with a valve stem upper guide ball housed in the intake valve actuator, said ball allowing said valve to orient at a limited angle relative to said actuator.
- the articulated plenum comprises a valve stem which can translate along its longitudinal axis in a position memory valve stem seal holder which is housed in the inlet valve actuator, said door - seal able to move radially relative to said actuator and comprising a valve stem seal which forms a seal between said seal carrier and the valve stem while said seal carrier also comprises a seal door seal which forms a seal between said seal carrier and G inlet valve actuator.
- the hinged plenum comprises a valve stem seal holder with position memory which is held pressed against the inlet valve actuator G by a valve stem seal holder spring.
- the hinged plenum comprises a plenum body which receives the inlet valve actuator via a thermal decoupling spacer which seals and centers with the plenum body of on the one hand, and with the inlet valve actuator on the other hand.
- the articulated plenum comprises restraining means which consist of at least one actuator restraining plate held pressed against the inlet valve actuator by at least one plate tie rod and by the 'via at least one plate stopper, so that said actuator is in turn kept pressed against the plenum body by means of an actuator bearing face presented by the actuator orifice, and so that the frusto-spherical end on the burner side is kept pressed against the complementary troncospheric surface on the burner side and / or the troncospheric end on the cylinder head side is kept pressed against the complementary troncospheric surface on the cylinder head side.
- the articulated plenum according to the present invention comprises restraining means which consist of at least one plenum restraining vise on the burner side which directly or indirectly supports - in the vicinity of the plenum inlet opening and in the direction of the latter - on the plenum body by means of at least one vice support surface.
- FIG.l is a schematic sectional view of the articulated plenum according to the invention, implemented on the heat engine transfer-expansion and regeneration object of patent WO2016 / 120560 belonging to the applicant, said plenum housing an actuator Regenerative valve hydraulics whose valve is made compatible with said plé num by various arrangements provided by the articulated plenum according to the invention, a plenum contention vice on the burner side being shown as restraining means.
- FIG.2 is a three-dimensional view of the articulated plenum according to the invention, implemented on the heat engine with transfer-expansion and regeneration object of patent WO2016 / 120560 belonging to the applicant, said plenum housing a hydraulic actuator of regeneration valve, the valve of which is made compatible with said plenum by various arrangements provided by the articulated plenum according to the invention.
- FIG.3 is an overall three-dimensional view of a thermal engine with transfer-expansion and regeneration, the subject of patent WO2016 / 120560 belonging to the applicant, which comprises two cylinder-cylinder head assemblies of the expansion valve, each assembly receiving two plenums articulated according to the invention.
- the articulated plenum 1 is particularly intended for a heat engine transfer-expansion and regeneration 30 whose double-acting regulator piston 31 moves in a regulator cylinder 32, the latter constituting with an upper regulator cylinder head 33 and a lower pressure regulator cylinder head 34, a cylinder-cylinder head assembly 35.
- the heat transfer-expansion and regeneration engine 30 comprises a compressor 36 which compresses a working gas 37 before expelling it into a regeneration heat exchanger 38 in which said gas 37 is preheated while that leaving said exchanger 38, said gas 37 is superheated by a heat source 39.
- the working gas 37 is introduced via a burner outlet duct 46 then an inlet duct 3 and by an inlet valve 10 controlled by an inlet valve actuator 50 in the expansion valve cylinder 32 to be relaxed there and produce work on a power output shaft 40.
- the working gas 37 is then expelled from the expansion valve cylinder 32 before being again introduced into the regeneration heat exchanger 38 to be cooled there by relinquishing part of its heat to the working gas 37 which enters said exchanger 38 to be preheated therein.
- plenum body 2 which can advantageously be made of a hard material resistant to high temperatures such as silicon carbide.
- Said plenum body 2 forms the intake duct 3 of the heat engine to transfer-expansion and regeneration 30 and includes a plenum inlet 4 which communicates with the heat source 39, a plenum outlet 6 which opens into the expansion valve cylinder 32 via either the upper valve cylinder head 33 or the regulator lower cylinder head 34, and an actuator port 8 which receives the inlet valve actuator 50.
- the invention also has a troncospheric end on the burner side 5 arranged at the level of the plenum inlet 4, said end 5 forming a sealed ball joint 16 with a complementary troncospheric surface on the burner side 14 arranged outside the duct of burner outlet 46, the latter possibly being made of a hard material resistant to high temperatures such as silicon carbide.
- either the troncospheric end on the burner side 5 or the complementary troncospheric surface on the burner side 14 may have a conical shape and not a spherical shape, so as to promote a line of contact rather than a contact area. between said end 5 and said surface 14. It is noted that in this case, it is the female part which must have a conical shape.
- Figures 1 and 2 also illustrate that the articulated plenum 1 according to the invention also has a troncospheric end on the cylinder head side 7 provided at the level of the plenum outlet opening 6, said end 7 forming a sealed ball joint 16 with a complementary troncospheric surface on the cylinder head side 15 arranged on the outside of the upper valve cylinder head 33 or the lower valve cylinder head 34.
- complementary troncospheric surface on the yoke side 15 may have a conical shape and not a spherical shape, so as to promote a contact line rather than a contact area between said end 7 and said surface 15. It is noted that in this case, it is is the female part which must have a conical shape.
- the articulated plenum 1 also comprises a valve seat 9 which is particularly visible in Figures 1 and 2, said seat 9 being arranged in the vicinity of the plenum outlet 6 while the valve of inlet 10 may rest on said seat 9 to close off said orifice 6 in order to prevent the working gas 37 from the heat source 39 from entering the regulator cylinder 32.
- the inlet valve 10 can be made of a hard material resistant to high temperatures such as silicon nitride.
- the articulated plenum 1 comprises restraining means 17 which on the one hand, maintain the troncospheric end on the burner side 5 pressed against the complementary troncospheric surface on the burner side 14, and which, on the other hand, maintain the troncospheric end on the breech side 7 pressed onto the complementary troncospheric surface on the cylinder head side 15.
- the valve seat 9 may have a complementary troncospheric surface on the seat side 18 which cooperates with a troncospheric bearing on the valve side 19 provided at the end of the valve d 'admission 10.
- said surface 18 and said bearing surface 19 form a sealed ball joint 16 when they are in contact with each other so that the inlet valve 10 can be oriented relative to the plenum articulated 1 at a limited angle, while in all cases providing a seal with the valve seat 9 with which it cooperates.
- the complementary troncospheric surface on the seat side 18 can be conical and not spherical so as to promote a line of contact rather than a contact area between itself and the troncospheric bearing on the valve side 19.
- the intake valve 10 may include a valve stem 11 which can translate along its longitudinal axis in or with an upper valve stem guide ball 66 housed in the inlet valve actuator 50, said ball 66 allowing said valve 10 to orient at a limited angle with respect to said actuator 50.
- valve stem 11 can translate along its longitudinal axis in a position memory valve stem seal holder 67 shown in Figures 1 and 2.
- Said seal holder 67 is housed in the inlet valve actuator 50 and can move radially relative to said actuator 50.
- Said seal carrier 67 may advantageously include a valve stem seal 74 which forms a seal between said seal carrier 67 and the valve stem 11 while said seal carrier 67 may also include a seal door seal 75 which forms a seal between said seal carrier 67 and the inlet valve actuator 50.
- valve stem seal holder position memory 67 can be kept pressed against G inlet valve actuator 50 by a valve stem seal holder spring 68 which may consist of a stack of elastic washers, a helical spring, or any other type of spring known to those skilled in the art.
- the plenum body 2 can receive the inlet valve actuator 50 via a spacer thermal decoupling 13 which provides a seal and a centering with the plenum body 2 on the one hand, and with the inlet valve actuator 50 on the other hand.
- the thermal decoupling spacer 13 is made of a material with low thermal conductivity such as zirconium oxide.
- the thermal decoupling spacer 13 may form a spacer heat shield 20 which protects the intake valve actuator 50 from heat emitted by the working gas 37, the latter circulating at high temperature in the intake duct 3 formed by the plenum body 2.
- thermal protection of the intake valve actuator 50 that constitutes the spacer heat shield 20 can be added to or replace an actuator body cooling circuit 69 particularly visible in Figures 1 and 2, which may include the inlet valve actuator 50 in its lower part.
- the inlet valve actuator 50 is kept pressed against the plenum body 2 by means of an actuator bearing face 12 which the actuator orifice 8 has, this while that the troncospheric end on the burner side 5 is kept pressed against the complementary troncospheric surface on the burner side 14 and / or that the troncospheric end on the cylinder head side 7 is kept pressed against the complementary troncospherical surface on the cylinder head side 15.
- the plate stop 42 can be fixed or articulated, and consist of one or more interposed or juxtaposed parts.
- two actuator retention plates 41 can be connected to each other by plate tie rods 43, the first said plate 41 now pressed a first inlet valve actuator 50 on a first plenum articulated 1 cooperating with the upper cylinder head of the regulator 33 while the second said plate 41 keeps a second inlet valve actuator 50 pressed against a second articulated plenum 1 cooperating with the lower cylinder head of the regulator 34.
- FIG 1 shows that the restraint means 17 can also be
- plenum containment vice on the burner side 71 which directly or indirectly bears - in the vicinity of the plenum inlet 4 and in the direction of the latter - on the plenum body 2 by means of d 'at least one vice support surface 65.
- the same plenum containment vice on the burner side 71 simultaneously plates the respective troncospheric ends on the burner side 5 of two articulated plenums 1 on the complementary troncospheric surfaces on the burner side 14 with which they cooperate, the first articulated plenum 1 cooperating with the upper valve cylinder head 33 while the second articulated plenum 1 cooperates with the lower regulator cylinder head 34.
- the contention force exerted by the plenum contention vice on the burner side 71 on the articulated plenum or plenums 1 with which it cooperates can advantageously be adjusted.
- a vice force adjustment nut 73 which compresses a plenum containment vice spring 72.
- the articulated plenum 1 is shown in Figures 1 to 3 as it can be implemented on the heat engine transfer-expansion and regeneration 30 subject of patent WO2016 / 120560 belonging to the applicant, which is here improved in that it consists of a double-acting regulator cylinder with adaptive support as described in patent WO2017 / 046479 which also belongs to the applicant and which allows the cylinder-cylinder heads assembly of said engine 30 to expand freely under the effect of temperature.
- Figure 3 is an overview of the heat engine transfer-expansion and regeneration 30 as it may be provided to receive the hinged plenum 1 according to the invention.
- the heat transfer-expansion and regeneration engine 30 comprises a compressor 36 which compresses a working gas 37.
- Said gas 37 is intended to be expanded in the expansion valve cylinder 32 after having been preheated in a regeneration heat exchanger 38, then superheated by a heat source 39 which, in this case and according to the non-limiting example presented here to illustrate the operation of the articulated plenum 1 according to the invention is a burner known per se.
- the working gas 37 produces on the double-acting regulator piston 31 a mechanical work which is transmitted to a power output shaft 40 housed in a transmission housing 45.
- the working gas 37 is routed from the heat source 39 to the expansion valve cylinder 32 successively via a burner outlet duct 46 then via the inlet duct 3 which constitutes the plenum body 2 of the articulated plenum 1 according to the invention.
- G regenerative valve hydraulic actuator 51 described in French patent application No. 1759206 there is an actuator cylinder 52 which comprises an actuator cylinder piston 53 to form a hydraulic actuator chamber 54.
- chamber 54 is operated according to this non-limiting example of embodiment by means of tubular hydraulic valves 55 controlled by a solenoid valve actuator 56.
- actuator cylinder piston 53 acts on the valve stem 11 of the intake valve 10 by means of a valve lift cam lever 57 which is connected to said valve stem. valve 11 by a cam pivot linkage lever 58.
- valve lift cam lever 57 rests on a cam lever bearing-sliding plate 59 with which it reacts to lift or refit the intake valve 10.
- cam lever orientation arch 60 can advantageously
- FIGS 1 and 2 also show the valve return cylinder 61 which recalls the intake valve 10 to its seat, said cylinder 61 being in particular constituted by a valve return cylinder piston 62 to form a chamber hydraulic valve return cylinder 63.
- the play take-up cylinder 64 which compensates for the deformations and the expansions of the various components which constitute the hydraulic actuator of the regeneration valve 51, this to to give the latter an adequate operation whatever the mechanical and thermal stresses to which it is subjected.
- the cylinder-head assembly of the regulator 35 is made of cast iron, a material commonly used in motorization, whether the latter is for example intended for an automobile, for a truck or a ship.
- the burner outlet duct 46 and the plenum body 2 of the articulated plenum 1 according to the invention are made of silicon carbide, the operating temperature of which is equal to that of the working gas 37 exiting from the heat source 39, that is to say one thousand three hundred degrees Celsius according to the example taken here without limitation.
- the intake valve 10 for its part is here made of silicon nitride.
- valve stem 11 which penetrates inside the inlet valve actuator 50 and which cooperates with the valve lift cam lever 57.
- the part of the intake valve 10 which is made of silicon nitride is brought in operation to a temperature mainly close to one thousand three hundred degrees Celsius
- the part of the valve stem 11 which is made of steel is brought in operation to a temperature mainly close to one hundred degrees Celsius.
- the part of the valve stem 11 made of steel is advantageously mounted hooped on the part of said stem 11 made of silicon nitride.
- each articulated plenum 1 as shown in Figure 3.
- the orientation of said articulated plenums 1 varies with respect to the upper valve cylinder head 33 or the lower valve cylinder head 34 with which they cooperate on the one hand, and relative to the burner outlet duct 46 to which they are connected in a sealed manner on the other hand.
- the articulated plenum 1 automatically adapts to variations in the distance between the upper cylinder head of the regulator 33 and the lower cylinder head of the regulator 34, and between said cylinder heads 33, 34 and the outlet duct burner 46 to which they are connected via the plenum body 2 with which they cooperate.
- the thermal decoupling spacer 13 is according to this non-limiting example made of a material with low thermal conductivity such as zirconium oxide, while its lower part forms a spacer thermal screen 20 which protects the inlet valve actuator 50 of the heat emitted by the working gas 37 which circulates at high temperature in the inlet duct 3 formed by the plenum body 2.
- inlet valve 50 formed by the spacer heat shield 20 is supplemented by an actuator body cooling circuit 69 in which circulates a coolant such as a mixture of water and glycol maintained at a constant temperature. temperature close to one hundred degrees Celsius.
- a coolant such as a mixture of water and glycol maintained at a constant temperature. temperature close to one hundred degrees Celsius.
- the restraining means 17 which keep the inlet valve actuator 50 pressed against the plenum body 2 on the one hand, and the troncospheric end on the cylinder head side 7 on the complementary troncospheric surface on the cylinder head side 15 on the other hand, take the form of an actuator retainer plate 41 which exerts a clamping force on the intake valve actuator 50 in the direction of the plenum body 2 through the 'Intermediate of a plate stop 42 which is here articulated and consists of several interposed parts.
- the containment means 17 also include a plenum containment vice on the burner side 71 which presses - in the vicinity of the plenum inlet opening 4 and in the direction of the latter - on the plenum body 2 by means of at least one vice support surface 65 which here takes the form of a ball joint.
- the same plenum containment vice on the burner side 71 simultaneously plates the respective troncospheric ends on the burner side 5 of the two articulated plenums 1 that a same cylinder-cylinder head assembly 35 comprises on the complementary troncospheric surfaces on the burner side 14 with which they cooperate, the first articulated plenum 1 cooperating with the upper regulator cylinder head 33 while the second articulated plenum 1 cooperates with the lower regulator cylinder head 34.
- the compression force exerted by the plenum containment vise on the burner side 71 on the articulated plenums 1 with which it cooperates is here and according to this non-limiting example adjustable by means a vice force adjustment nut 73, the latter compressing a plenum containment vice spring 72 which guarantees a small variation in the plating force exerted by the plenum containment vice on the burner side 71 on the articulated plenums 1 with which it cooperates regardless of the expansion of the various components which the said clamp 71 encloses.
- articulated 1 and the burner outlet duct 46 with which said assembly 35 cooperates is dilate, thermal decoupling spacer 13 and the end made of silicon nitride of the inlet valve 10 expand in all directions, even deform under the effect of mechanical and thermal stresses.
- the manufacturing tolerances of the various components 35, 1, 46, 13, 10 which have just been enumerated mean that the positioning of the inlet valve actuator 50 relative to that of the valve seat 9 fitted at the level of the plenum outlet 6 varies according to the operating conditions of the transfer-expansion and regeneration heat engine 30.
- the articulated plenum 1 provides that the valve seat 9 has a complementary troncospheric surface on the seat side. 18 which is here provided conical, said surface 18 cooperating with a troncospheric bearing on the valve side 19 arranged at the end of the intake valve 10 so that the latter can be oriented relative to the articulated plenum 1 at a limited angle, while in all cases providing a seal with the valve seat 9 with which it cooperates.
- valve stem 11 of the intake valve 10 cooperates with an upper valve stem guide ball 66 arranged in the inlet valve actuator 50, said stem 11 being able to translate along its longitudinal axis in said ball 66 while the latter allows said valve 10 to be oriented at a limited angle with respect to the inlet valve actuator 50 which controls it.
- FIGS. 1 and 2 show that the valve stem 11 can translate along its longitudinal axis in a position memory valve stem seal holder 67 which is fitted in the intake valve actuator 50 .
- the position memory valve stem seal holder 67 can move radially with respect to said actuator 50 when the valve stem 11 exerts a radial force on it. It is noted in Figures 1 and 2 that said seal carrier 67 comprises on the one hand, a valve stem seal 74 which forms a seal between itself and the valve stem 11 and on the other hand, a door seal seal 75 which forms a seal between said seal carrier 67 and the inlet valve actuator 50.
- valve stem seal holder 67 is held pressed against the inlet valve actuator 50 by a valve stem seal holder spring 68 which here consists of a stack spring washers.
- the device for reorienting the inlet valve 10 that constitutes the set of means which has just been described allows the plenum body 2 to deform and expand, at the end made of silicon nitride. of the intake valve 10 to lengthen, and the clearances found on the one hand between the thermal decoupling spacer 13 and the intake valve actuator 50 and on the other hand between said spacer 13 and the actuator orifice 8 to be caught without ever compromising the seal formed by the intake valve 10 with the valve seat 9 with which it cooperates.
- valve stem 11 exerts a radial force on the position memory valve stem seal holder 67 so that the latter moves radially with respect to the inlet valve actuator 50, what the upper valve stem guide ball 66 allows.
- the intake valve 10 is kept step by step always in the axis of the valve seat 9 with which it cooperates, this without preventing the various constituent parts of the articulated plenum 1 according to the invention or of the engine. thermal transfer-expansion and regeneration 30 to deform and / or expand freely, depending on the operating constraints of said engine 30.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lift Valve (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Supercharger (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020217034259A KR20210141669A (ko) | 2019-03-29 | 2020-03-11 | 관절식 플레넘 |
AU2020255311A AU2020255311A1 (en) | 2019-03-29 | 2020-03-11 | Articulated plenum |
JP2021557814A JP2022528661A (ja) | 2019-03-29 | 2020-03-11 | 関節屈曲プレナム |
CA3134437A CA3134437A1 (fr) | 2019-03-29 | 2020-03-11 | Plenum articule |
CN202080026390.3A CN113677883A (zh) | 2019-03-29 | 2020-03-11 | 铰接式增压器 |
EP20725871.6A EP3947949A1 (fr) | 2019-03-29 | 2020-03-11 | Plenum articulé |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1903385A FR3094416B1 (fr) | 2019-03-29 | 2019-03-29 | Plenum articulé |
FR1903385 | 2019-03-29 |
Publications (1)
Publication Number | Publication Date |
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WO2020201649A1 true WO2020201649A1 (fr) | 2020-10-08 |
Family
ID=68072535
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/FR2020/050497 WO2020201649A1 (fr) | 2019-03-29 | 2020-03-11 | Plenum articulé |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP3947949A1 (fr) |
JP (1) | JP2022528661A (fr) |
KR (1) | KR20210141669A (fr) |
CN (1) | CN113677883A (fr) |
AU (1) | AU2020255311A1 (fr) |
CA (1) | CA3134437A1 (fr) |
FR (1) | FR3094416B1 (fr) |
WO (1) | WO2020201649A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3132737A1 (fr) | 2022-02-11 | 2023-08-18 | Vianney Rabhi | Moteur thermique alternatif |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016120560A2 (fr) | 2015-01-30 | 2016-08-04 | Vianney Rabhi | Moteur thermique a transfert détente et régénération |
WO2017046479A1 (fr) | 2015-09-14 | 2017-03-23 | Vianney Rabhi | Cylindre detendeur a double effet a support adaptatif |
WO2018154214A1 (fr) | 2017-02-27 | 2018-08-30 | Vianney Rabhi | Système de refroidissement régénératif |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2402169B (en) * | 2003-05-28 | 2005-08-10 | Lotus Car | An engine with a plurality of operating modes including operation by compressed air |
KR101390770B1 (ko) * | 2010-09-24 | 2014-04-30 | 스쿠데리 그룹 엘엘씨 | 스플릿-사이클 엔진을 위한 터보차지되고 소형화된 압축 실린더 |
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2019
- 2019-03-29 FR FR1903385A patent/FR3094416B1/fr active Active
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2020
- 2020-03-11 WO PCT/FR2020/050497 patent/WO2020201649A1/fr unknown
- 2020-03-11 CN CN202080026390.3A patent/CN113677883A/zh active Pending
- 2020-03-11 CA CA3134437A patent/CA3134437A1/fr active Pending
- 2020-03-11 EP EP20725871.6A patent/EP3947949A1/fr active Pending
- 2020-03-11 JP JP2021557814A patent/JP2022528661A/ja active Pending
- 2020-03-11 KR KR1020217034259A patent/KR20210141669A/ko unknown
- 2020-03-11 AU AU2020255311A patent/AU2020255311A1/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2016120560A2 (fr) | 2015-01-30 | 2016-08-04 | Vianney Rabhi | Moteur thermique a transfert détente et régénération |
FR3032236A1 (fr) | 2015-01-30 | 2016-08-05 | Vianney Rabhi | Moteur thermique a transfert-detente et regeneration |
WO2017046479A1 (fr) | 2015-09-14 | 2017-03-23 | Vianney Rabhi | Cylindre detendeur a double effet a support adaptatif |
WO2018154214A1 (fr) | 2017-02-27 | 2018-08-30 | Vianney Rabhi | Système de refroidissement régénératif |
Also Published As
Publication number | Publication date |
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CA3134437A1 (fr) | 2020-10-08 |
AU2020255311A1 (en) | 2021-10-28 |
CN113677883A (zh) | 2021-11-19 |
KR20210141669A (ko) | 2021-11-23 |
FR3094416A1 (fr) | 2020-10-02 |
JP2022528661A (ja) | 2022-06-15 |
EP3947949A1 (fr) | 2022-02-09 |
FR3094416B1 (fr) | 2021-03-05 |
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