公开(公告)号：US11773795B1

公开(公告)日：2023-10-03

申请号：US17879992

申请日：2022-08-03

Applicant: Caterpillar Inc.

Inventor： Jaswinder Singh ,  Eric Lee Schroeder ,  Andrew Joseph Loetz ,  Ryan Mchael Snodgrass ,  Adam Joseph Clute ,  Patrick John Seiler ,  Christopher Ronald Gehrke

IPC: F02D41/00 ,  F02B19/10 ,  F02B19/12 ,  F02D41/14

CPC classification number: F02D41/0027 ,  F02B19/1009 ,  F02B19/12 ,  F02D41/0002 ,  F02D41/1401 ,  F02D41/1454 ,  F02D2041/1433 ,  F02D2200/101

Abstract: Operating a gaseous fuel engine system includes spark-igniting a gaseous hydrogen fuel and air in a prechamber sparkplug to ignite a main charge containing gaseous hydrogen fuel and air in a cylinder. Operating the gaseous fuel engine system also includes determining a preignition condition and conveying cooling air to the prechamber sparkplug based on the preignition condition to limit preignition of gaseous hydrogen fuel and air in the prechamber sparkplug. Related apparatus and control logic is also disclosed.