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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：EP3371422A1
公开(公告)日：2018-09-12
申请号：EP16862766.9
申请日：2016-10-31
CPC分类号： F01L3/20 , B23P15/002 , F01L3/00 , F01L3/06 , F01L2101/00 , F01L2103/00
摘要： An intake valve for a combustion engine is described. The intake valve has a head portion that is designed to improve the flow of air-fuel mixture around the head portion and into the combustion chamber. The head portion has a beveled or rounded edge at the top surface. The angle changes from the underside surface to the top surface are rounded to prevent separation of the air-fuel mixture from the surface of the intake valve. In addition, the underside surface of the head portion has a plurality of helical grooves that induce a circular flow to improve mixing of the air-fuel mixture in the chamber. The helical grooves also improve heat exchange between the air-fuel mixture and the intake valve.
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