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    METHOD FOR MEASURING THE CONCENTRATION OF GASEOUS SPECIES IN A BIOGAS
    2.
    发明申请
    METHOD FOR MEASURING THE CONCENTRATION OF GASEOUS SPECIES IN A BIOGAS 有权

    公开(公告)号：US20220128459A1

    公开(公告)日：2022-04-28

    申请号：US17428238

    申请日：2020-01-14

    申请人： IFP Energies nouvelles

    发明人： Matthieu LECOMPTE ,  Philipp SCHIFFMANN ,  Olivier LAGET ,  Noemie CAILLOL

    IPC分类号： G01N21/33 ,  G01N33/00 ,  G01N21/85

    摘要： The invention relates to a method for in-situ measurement of the concentration of gaseous chemical species contained in a biogas (10) flowing in a pipe (20), for example in a biogas treatment plant or a system using biogas.
    The method according to the invention is implemented by means of an optical measurement system (40) including a light source (41) and a spectrometer (44). Source (41) emits a UV radiation (42) through the biogas (10) within a measurement zone (21) in the pipe. Spectrometer (44) detects at least part of said UV radiation that has passed through biogas (10) and it generates a digital signal of the light intensity (50) as a function of the wavelength of the part of the UV radiation that has passed through the biogas. The chemical species concentration is then determined from digital light intensity signal (50).

    METHOD FOR MONITORING THE FUEL INJECTION OF AN INTERNAL COMBUSTION ENGINE WITH DIRECT INJECTION, IN PARTICULAR WITH COMPRESSION IGNITION, AND ENGINE USING SUCH A METHOD
    5.
    发明申请
    METHOD FOR MONITORING THE FUEL INJECTION OF AN INTERNAL COMBUSTION ENGINE WITH DIRECT INJECTION, IN PARTICULAR WITH COMPRESSION IGNITION, AND ENGINE USING SUCH A METHOD 审中-公开

    公开(公告)号：US20170082013A1

    公开(公告)日：2017-03-23

    申请号：US15126219

    申请日：2015-02-05

    申请人： IFP Energies nouvelles

    发明人： Lionel MARTINEZ ,  Stéhane RICHARD ,  Olivier LAGET

    IPC分类号： F02B23/06

    CPC分类号： F02B23/0669 ,  F02B23/0624 ,  Y02T10/125

    摘要： The present invention relates to a fuel injection method for a compression-ignition direct-injection internal-combustion engine comprising at least a cylinder (10), a cylinder head (12) carrying fuel injection means (14), a piston (16) sliding in this cylinder, a combustion chamber (34) delimited on one side by upper face (44) of the piston comprising a teat (48) extending in the direction of the cylinder head and arranged in the centre of a concave bowl (46) with at least two mixing zones (Z1, Z2), said injection means projecting fuel in at least two fuel jet sheets (36, 38) with different sheet angles (A1, A2), characterized in that it consists in injecting into the combustion chamber the fuel jets (40) of one (36) of the sheets in a radial direction (C1) forming a non-zero angle (b2) with the radial direction (C2) of fuel jets (42) of the other sheet and in admitting the oxidizer in a swirling motion with a swirl number less than or equal to 1.5.

    DIRECT-INJECTION INTERNAL-COMBUSTION ENGINE WITH DUAL SHEET ANGLE FOR PRODUCING A FUEL MIXTURE IN A COMBUSTION CHAMBER WITH DUAL COMBUSTION ZONE AND LOW COMPRESSION RATIO, AND METHOD FOR USING SAME
    6.
    发明申请
    DIRECT-INJECTION INTERNAL-COMBUSTION ENGINE WITH DUAL SHEET ANGLE FOR PRODUCING A FUEL MIXTURE IN A COMBUSTION CHAMBER WITH DUAL COMBUSTION ZONE AND LOW COMPRESSION RATIO, AND METHOD FOR USING SAME 审中-公开
    具有用于在具有双燃烧区和低压缩比的燃烧室中生产燃料混合物的双面喷射角的直接喷射内燃机及其使用方法

    公开(公告)号：US20170051657A1

    公开(公告)日：2017-02-23

    申请号：US15306434

    申请日：2015-04-08

    申请人： IFP Energies nouvelles

    发明人： Lionel MARTINEZ ,  Stéphane RICHARD ,  Olivier LAGET

    IPC分类号： F02B23/06

    CPC分类号： F02B23/0669 ,  Y02T10/125

    摘要： The present invention relates to a compression-ignition direct-injection internal-combustion engine with a compression ratio ranging between 13.5 and 16.5 including a combustion chamber limited on one side by upper face (44) of a piston (16) comprising a projection (48) arranged in the center of a concave bowl (46) with at least two mixing zones (Z1, Z2), a fuel injection comprising at least one injector (30) projecting fuel in at least two fuel jet sheets (36, 38) with different sheet angles (A1, A2). The fuel injector comprises two rows of injection orifices (33a, 33b) arranged one above the other with the number of orifices of each row (Ninf, Nsup) is greater than or equal to −4.Ns+14 and less than or equal to −4.Ns+16 for the lower sheet or −4.Ns+18 for the upper sheet. Ns is the swirl number of this engine with a swirl number less than 1.5.

    摘要翻译： 压缩点火直喷式内燃机技术领域本发明涉及一种压缩比范围在13.5至16.5之间的压燃式直喷式内燃机，包括一个由活塞（16）的上表面（44）限定在一侧的燃烧室，该燃烧室包括一个突出部 ），其具有至少两个混合区（Z1，Z2）布置在具有至少两个混合区（Z1，Z2）的凹槽（46）的中心，燃料喷射包括在至少两个燃料喷射片（36,38）中突出燃料的至少一个喷射器（30） 不同的片角（A1，A2）。 燃料喷射器包括两排一排排列的喷射孔（33a，33b），每排喷嘴的孔数（Ninf，Nsup）大于或等于-4.Ns + 14且小于或等于 -4.Ns + 16为下片或-4.Ns + 18为上片。 Ns是涡轮数小于1.5的发动机的涡旋数。

    ELLIPTICALLY-SHAPED COMBUSTION CHAMBER
    7.
    发明申请
    ELLIPTICALLY-SHAPED COMBUSTION CHAMBER 审中-公开

    公开(公告)号：US20190101049A1

    公开(公告)日：2019-04-04

    申请号：US16143920

    申请日：2018-09-27

    申请人： IFP Energies nouvelles

    发明人： Didier AMBRAZAS ,  Xavier GAUTROT ,  Olivier LAGET ,  Julien TROST

    IPC分类号： F02B23/10 ,  F02F1/18 ,  F02F1/24

    摘要： The present invention relates to a combustion chamber of a combustion engine. The combustion chamber comprises a single intake valve (2), a single exhaust valve (3), a fuel injector (5) and two plugs (4). According to the invention, the combustion chamber is substantially elliptical (6) and the components of the combustion chamber are arranged as follows: valves (2, 3) are located at the ends of the major axis (8) of ellipse (6), plugs (4) are located close to the minor axis (9) of ellipse (6), fuel injector (5) is located on the periphery of ellipse (6) between intake valve (2) and a plug (4).

    DIRECT FUEL INJECTION COMBUSTION ENGINE AND MORE PARTICULARLY A COMPRESSION-IGNITION ENGINE WITH A LOW COMPRESSION RATIO
    9.
    发明申请
    DIRECT FUEL INJECTION COMBUSTION ENGINE AND MORE PARTICULARLY A COMPRESSION-IGNITION ENGINE WITH A LOW COMPRESSION RATIO 审中-公开
    直接燃油喷射发动机和更特别的压缩点火发动机，具有低压缩比

    公开(公告)号：US20160341106A1

    公开(公告)日：2016-11-24

    申请号：US15115222

    申请日：2015-01-12

    申请人： IFP ENERGIES NOUVELLES

    发明人： Stéphane RICHARD ,  Lionel MARTINEZ ,  Olivier LAGET

    IPC分类号： F02B23/06 ,  F02B17/00 ,  F02F3/26 ,  F02M61/14 ,  F02F1/24 ,  F02B9/02 ,  F02M61/18

    CPC分类号： F02B23/0696 ,  F02B1/12 ,  F02B9/02 ,  F02B17/005 ,  F02B23/0651 ,  F02B23/0669 ,  F02B23/0672 ,  F02B23/0693 ,  F02F1/242 ,  F02F3/26 ,  F02M45/086 ,  F02M61/14 ,  F02M61/1806 ,  F02M61/1813 ,  F02M61/182 ,  Y02T10/125

    摘要： The present invention is a compression-ignition direct-injection internal-combustion engine comprising at least a cylinder (10), a cylinder head (12) carrying fuel injection means (14), a piston (16) sliding in the cylinder, a combustion chamber (34) limited on one side by an upper face (44) of the piston comprising a projection (48) extending in the direction of the cylinder head and located in a centre of a concave bowl (46). The engine comprises injection means projecting fuel in at least two fuel jet sheets with different sheet angles (A1, A2), a lower sheet (36) of jet axis C1 and an upper sheet (38) of jet axis C2, and at least two mixing zones (Z1, Z2) of the combustion chamber. One of the zones comprises a toroidal volume (64) having center B with a flat bottom (56) into which fuel jets (40) of the lower sheet are injected so that axis C1 of the lower sheet jets is contained between center B and projection (48).

    摘要翻译： 本发明是一种压燃点火直喷式内燃机，其至少包括一气缸（10），一承载燃料喷射装置（14）的气缸盖（12），一气缸内滑动的活塞（16） 腔室（34）通过活塞的上表面（44）在一侧被限制，该活塞的上表面（44）包括沿着气缸盖的方向延伸并位于凹槽（46）的中心的突起（48）。 发动机包括喷射装置，其在具有不同的片角（A1，A2），喷射轴线C1的下片（36）和喷射轴线C2的上片（38）的至少两个燃料喷射片中投射燃料，以及至少两个 燃烧室的混合区（Z1，Z2）。 其中一个区域包括具有平底部（56）的中心B的环形容积（64），下片的燃料喷嘴（40）被注入其中，使得下片射流的轴线C1包含在中心B和突出部 （48）。