US 11,988,164 B2
Start control apparatus of internal combustion engine
Takeshi Tokumaru, Fujisawa (JP)
Assigned to ISUZU MOTORS LIMITED, Yokohama (JP)
Filed by ISUZU MOTORS LIMITED, Yokohama (JP)
Filed on Sep. 25, 2023, as Appl. No. 18/473,357.
Claims priority of application No. 2022-153586 (JP), filed on Sep. 27, 2022.
Prior Publication US 2024/0102428 A1, Mar. 28, 2024
Int. Cl. F02D 41/06 (2006.01); F02D 41/00 (2006.01)
CPC F02D 41/062 (2013.01) [F02D 41/0027 (2013.01); F02D 41/0077 (2013.01); F02D 2200/0611 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A start control apparatus of an internal combustion engine using liquefied gas fuel, the start control apparatus comprising:
a gas sensor configured to detect a gas concentration of the liquefied gas fuel in a gasified state at a position near a combustion chamber;
a scavenging pump configured to perform scavenging from a position upstream of the combustion chamber to a position downstream of the combustion chamber; and
a control unit configured to prohibit a start of the internal combustion engine and operate the scavenging pump when the gas concentration detected by the gas sensor before the start of the internal combustion engine is equal to or greater than a predetermined threshold value.