标致301火花塞单爪和个爪,火花塞单爪好还是多爪
更新时间：2023-01-26 08:45:01
SparkPlugSingleandDualElectrode
Thesparkplugisadevicefordeliveringanelectriccurrentfromanignitionsystemtothecombustionchamberofagasolineenginetoignitethecompressedfuel/airmixture.Thesparkplugconsistsoftwoparts:thesingleelectrodesparkplugandthedualelectrodesparkplug.
Thesingleelectrodesparkplugconsistsofasinglemetalelectrodethatisconnectedtothesparkplugbody.Thesparkplugbodyhasathreadedconnectiontotheengine’ssparkplugwire.Thesingleelectrodesparkplugisthemostcommontypeusedinsmallenginesandsomeautomobiles.
Thedualelectrodesparkplugconsistsoftwometalelectrodesthatareconnectedtothesparkplugbody.Theelectrodesareseparatedbyaninsulatedceramicinsulatorwhichpreventsthesparkfromjumpingbetweenthetwoelectrodes.Thedualelectrodesparkplugisusedinmostcarsandsomelargeengines.Itismoreefficientthanthesingleelectrodesparkplugasitprovidesahotterspark.
301原厂火花塞是博世FR7SI30，中心电极头部是铂铱合金的，我在车行1万公里时拆下火花塞，看到中心电极头部贵金属部分已经烧蚀了近一半。
火花塞四爪和单爪有区别吗
再用1.5万公里就能烧蚀到贵金属与非贵金属的焊接连接部分，所以，原厂火花塞更换最好不要超过3万，有人说已经用了5、6万公里还正常，没有更换过，建议抓紧拆下来检查，并且调整中心电极与侧电极间隙到0.9毫米，如果烧蚀后间隙变大，火花塞产生电弧就需要更大的电流，火花塞绝缘体会更容易漏电，高压线圈和缸线都会负载增大，然后过热，会容易损坏。