Invention Grant
- Patent Title: Fuel additives for reducing low speed pre-ignition events
-
Application No.: US18264083Application Date: 2022-03-24
-
Publication No.: US12209226B2Publication Date: 2025-01-28
- Inventor: Jiun-Le Shih , Chung-Hao Kuo , Charles Paul Loeper , Jeanelle Smoot
- Applicant: CHEVRON ORONITE COMPANY LLC , CHEVRON U.S.A. INC.
- Applicant Address: US CA San Ramon; US CA San Ramon
- Assignee: CHEVRON ORONITE COMPANY LLC,CHEVRON U.S.A. INC.
- Current Assignee: CHEVRON ORONITE COMPANY LLC,CHEVRON U.S.A. INC.
- Current Assignee Address: US CA San Ramon; US CA San Ramon
- International Application: PCT/IB2022/052717 WO 20220324
- International Announcement: WO2022/208251 WO 20221016
- Main IPC: C10M133/08
- IPC: C10M133/08 ; C10L1/22 ; C10M141/06

Abstract:
Method for preventing or reducing low speed pre-ignition events in a spark-ignited internal combustion engine is provided. The method includes supplying to the engine the lubricant composition comprising a primary additive having a structure given by or a salt thereof. R1 and R2 are independently H, C1-C20 hydrocarbyl group, carboxyl group, ester, amide, ketone, ether, or hydroxyl group. R3 and R4 are independently H, C1-C20 hydrocarbyl group, carboxyl group, ester, amide, ketone, ether, amino, or hydroxyl group or wherein R3 and R4 are part of a cyclic group. R5 is C1-C100 hydrocarbyl group, carboxyl group, ether, or hydroxyl group. Lastly, p is 0 to 2, n is 1 to 5, m is 0 to 2, and p+n+m is less than 6.
Public/Granted literature
- US20240101922A1 FUEL ADDITIVES FOR REDUCING LOW SPEED PRE-IGNITION EVENTS Public/Granted day:2024-03-28
Information query
IPC分类: