Isijojo sikaphethiloli esinepuleti le-orifice eliseduze nendawo yokuphuma. I-orifice plate inezindawo zepuleti lokuqala nelesibili ezihlukaniswe ngebanga elinqunywe kusengaphambili ukusuka kwelinye kanye ne-orifice, i-orifice enwebeka nge-eksisi yobude futhi ihlanganisa indawo yokuqala kanye nendawo yesibili ehlukaniswa ukusuka endaweni yokuqala. Ingaphezulu lokuqala lihlanganisa isifunda sokuqala esinesici sokuqala sobuso esiqondiswe endaweni etshekile eya eksisi longitudinal. Indawo yesibili ihlanganisa isifunda sesibili esinesici sobuso besibili esiqondiswe kuhlangothi lwesibili olutshekile oluya ku-eksisi longitudinal. Umjovo kaphethiloli unendlu enweba i-eksisi yobude. Indlu ihlanganisa indawo yokungena, indawo yokuphuma kanye nephaseji elahliwe phakathi kwendawo yokungena nokuphumayo. Isijojo sikaphethiloli sihlanganisa i-electromagnetic actuator eseduze nendawo yokungena, i-electromagnetic actuator ehlanganisa i-armature kanye nekhoyili kagesi i-valve, i-valve ehlanganisa ilungu lokuvala kanye nesihlalo se-valve, ilungu lokuvala elisebenza ukuze livale ukugeleza kukaphethiloli endaweni ephuma kuyo. indawo yokuqala futhi esebenzisekayo ukuvumela ukugeleza kukaphethiloli ku-orifice plate endaweni yesibili. Izindlela ezimbalwa zokwenza ama-orifice anama-engeli eshidini lensimbi zichazwa lapho i-orifice ene-engeli ingase yakheke khona kusukela ku-orifice eyakhiwe ngaphambili ene-engeli yesokudla. I-orifice ngayinye ene-engeli ine-axis etshekile ehlobene okungenani nendawo yokuqala kanye nendawo yesibili yeshidi lensimbi.