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公开(公告)号：EP4158742A1
公开(公告)日：2023-04-05
申请号：EP21724608.1
申请日：2021-05-05
申请人： Robert Bosch GmbH
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144.发明公开
公开(公告)号：EP3830914A1
公开(公告)日：2021-06-09
申请号：EP19726392.4
申请日：2019-05-23
申请人： Robert Bosch GmbH
发明人： ORLANDINI, Igor , RITTER, Ronald
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公开(公告)号：EP2525452B1
公开(公告)日：2020-05-13
申请号：EP10843010.9
申请日：2010-12-27
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公开(公告)号：EP3465849B1
公开(公告)日：2020-02-12
申请号：EP17721523.3
申请日：2017-04-11
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公开(公告)号：EP3560049A1
公开(公告)日：2019-10-30
申请号：EP17825896.8
申请日：2017-12-07
申请人： Rabhi, Vianney
发明人： Rabhi, Vianney
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公开(公告)号：EP3366915A1
公开(公告)日：2018-08-29
申请号：EP18154111.1
申请日：2018-01-30
申请人： Miyama, Inc.
发明人： MINAMI, Katsuaki
CPC分类号： H01T13/462 , F02B2023/085 , F02F11/002 , F02P13/00 , F02P15/02 , F02P15/08 , H01T13/08 , H01T13/32 , H01T13/40
摘要： A multipoint ignition device (100) for igniting an air-fuel mixture in a combustion chamber (4) of an engine (1) includes: an insulating member (12) formed in an annular shape such that an inner periphery thereof faces the combustion chamber (4); a plurality of electrodes (14) held on the insulating member (12) so as to form a plurality of ignition gaps (17) inside the combustion chamber (4); a main body portion (10) provided on an outer periphery of the insulating member (12); and an intermediate member (11) that is provided between the main body portion (10) and the insulating member (12) and has a larger thermal expansion coefficient than the insulating member (12).
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公开(公告)号：EP3347955A1
公开(公告)日：2018-07-18
申请号：EP16845200.1
申请日：2016-09-09
CPC分类号： H01T13/20 , F02P15/00 , H01T13/32 , H01T13/467
摘要： A multi-electrode spark plug having a large spark target volume is disclosed. The spark plugs have a plurality of ground electrode rods which extend from the base of the spark plug and are twisted around center electrode to provide a plurality of substantially equidistant spark points relative to the center electrode. The spark points are formed in parallel and around the elongated axis of the spark plug. This configuration enables the spark to be created where the localized concentration of fuel to air is richer, such as that which may exist when the engine is operating with lower revolutions per minute. Test results indicate that automobiles equipped with the multi-electrode spark plugs exhibit improved fuel economy, and substantially reduced emissions and air pollution.
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公开(公告)号：EP3010097B1
公开(公告)日：2018-05-09
申请号：EP14810488.8
申请日：2014-03-06
CPC分类号： H01T13/32 , H01T13/16 , H01T13/39 , H01T13/467 , H01T13/54
摘要： An object is to effectively reduce the difference in stress occurring between a tip and an annular portion, to thereby prevent separation and cracking of the tip more reliably. A spark plug (1) includes an insulator (2) having an axial hole (4), a center electrode (5) inserted into the axial hole (4), a metallic shell (3) provided around the insulator (2), aground electrode (27) whose base end portion is fixed to the metallic shell (3) and which has an annular portion (27A) formed at a forward end portion thereof, the center electrode (5) being disposed radially inward of the annular portion (27A), and an annular tip (32) which is joined to the inner circumference of the annular portion (27A) and which forms a spark discharge gap (28) between the center electrode (5) and the inner circumferential surface of the annular tip (32). Recesses (35) are provided on at least one of the inner and outer circumferences of the annular portion (27A).
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