LOW VISCOSITY GEAR OIL COMPOSITIONS FOR ELECTRIC AND HYBRID VEHICLES

    公开(公告)号:WO2020176171A1

    公开(公告)日:2020-09-03

    申请号:PCT/US2020/013835

    申请日:2020-01-16

    IPC分类号: C10M169/04 C10M171/00

    摘要: This disclosure relates to a lubricating oil (e.g., gear oil) for use in an electric or hybrid vehicle. The lubricating oil has a composition including one or more lubricating oil base stocks as a major component, and one or more lubricating oil additives, as a minor component. The one or more lubricating oil base stocks include at least one Group IV base oil, or at least one Group V base oil. The lubricating oil has a kinematic viscosity (KV 100 ) from 1 cSt to 7 cSt at 1OO°C as determined by ASTM D-445, and an electrical conductivity at room temperature of less than 15,000 pS/m as determined by ASTM D-2624. This disclosure also relates to methods for producing a lubricating oil for a transmission, gear train, gear set, gear box, or gears of an electric vehicle powertrain and methods for improving energy efficiency, while maintaining or improving wear control.

    LOW VISCOSITY HEAT TRANSFER FLUIDS WITH INCREASING FLASH POINT AND THERMAL CONDUCTIVITY

    公开(公告)号:WO2020132068A1

    公开(公告)日:2020-06-25

    申请号:PCT/US2019/067175

    申请日:2019-12-18

    IPC分类号: C10M105/32

    摘要: This disclosure relates to a heat transfer fluid having at least one first ester that is partially esterified, and at least one second ester that is fully esterified. The heat transfer fluid has a flash point from about 125°C to about 225°C as determined by ASTM D-93, and a kinematic viscosity (KV 100) from about 1 to about 5 at 100°C as determined by ASTM D-445. The at least one first ester and the at least one second ester are present in an amount such that, as the flash point and thermal conductivity of the heat transfer fluid are increased, the kinematic viscosity (KV 100 ) of the heat transfer fluid is decreased or essentially maintained. This disclosure also relates to a method for increasing flash point and thermal conductivity, while decreasing or essentially maintaining viscosity, of a heat transfer fluid by using the heat transfer fluid.

    LOW FRICTION AND LOW TRACTION LUBRICANT COMPOSITIONS USEFUL IN DRY CLUTCH MOTORCYCLES

    公开(公告)号:WO2022072962A1

    公开(公告)日:2022-04-07

    申请号:PCT/US2021/071092

    申请日:2021-08-04

    发明人: GAO, Zhisheng

    摘要: Low friction and low traction lubricant compositions that are particularly useful in dry clutch motorcycles and processes for making same. In some embodiments, a lubricant composition can include: an oil base stock consisting essentially of at least one monoester, wherein a concentration of the at least one monoester is about 70.00 to about 90.00 mass%; about 0.20 to about 1.50 mass% of at least one antiwear additive; about 0.10 to about 1.00 mass% of at least one friction modifier; about 1.00 to about 4.00 mass% of at least one dispersant; less than about 0.5 mass% of phosphorus; less than about 0.1 mass% of sulfur; and less than about 0.5 mass% of ash. The lubricant composition can have a traction coefficient that is greater than about 0.010 and less than about 0.023 and an average friction coefficient that is greater than about 0.01 and about less than about 0.10.

    SULFUR-FREE, ASHLESS, LOW PHOSPHORUS LUBRICANT COMPOSITIONS WITH IMPROVED OXIDATION STABILITY

    公开(公告)号:WO2021154497A1

    公开(公告)日:2021-08-05

    申请号:PCT/US2021/013337

    申请日:2021-01-14

    发明人: GAO, Zhisheng

    摘要: Sulfur-free, ashless, and low phosphorus-containing lubricant compositions for use as engine oil having improved oxidation stability. The lubricant composition can include about 60.0 mass% to about 99.8 mass% of an oil base stock, at least one ashless antiwear additive, at least one ashless detergent, and at least one antioxidant, based on a total mass of the lubricant composition. The oil base stock can include at least one polyalphaolefin and at least one alkyl naphthalene. The lubricant composition can contain less than about 0.05 mass% phosphorus, less than about 0.05 mass% sulfur, and less than about 0.05 mass% ash. The lubricant composition can be made by a process that includes combining the above-mentioned components to provide a lubricant composition.

    METHOD FOR IMPROVING FUEL ECONOMY TEST PRECISION IN ON-ROAD VEHICLES
    6.
    发明申请
    METHOD FOR IMPROVING FUEL ECONOMY TEST PRECISION IN ON-ROAD VEHICLES 审中-公开
    提高道路车辆燃料经济性测试精度的方法

    公开(公告)号:WO2018034844A1

    公开(公告)日:2018-02-22

    申请号:PCT/US2017/045101

    申请日:2017-08-02

    IPC分类号: G07C5/00

    摘要: A method for improving fuel efficiency testing precision in on-road vehicles. The method comprises: installing one or more dataloggers in one or more vehicles, each datalogger configured to receive fuel consumption data broadcast by an on-road vehicle's engine control unit (ECU); transmitting the fuel consumption data from the one or more dataloggers in the one or more on- road vehicles to a processor; and analyzing, using the processor, the fuel consumption data from the one or more dataloggers in the one or more on-road vehicles to determine fuel efficiency of the one or more on-road vehicles. The fuel consumption data comprises fuel rate data from the ECU which is transmitted through the one or more dataloggers, engine speed and other operating parameters from the ECU that are transmitted through the one or more dataloggers, torque sensor data which is transmitted through the one or more dataloggers, and traditional fuel log data.

    摘要翻译:

    一种提高道路车辆燃油效率测试精度的方法。 该方法包括:将一个或多个数据记录器安装在一个或多个车辆中,每个数据记录器配置为接收由公路车辆的发动机控制单元(ECU)广播的燃料消耗数据; 将燃料消耗数据从一个或多个公路车辆中的一个或多个数据记录器传输到处理器; 以及使用所述处理器分析来自所述一个或多个公路车辆中的所述一个或多个数据记录器的所述燃料消耗数据以确定所述一个或多个公路车辆的燃料效率。 燃料消耗数据包括通过一个或多个数据记录器传输的来自ECU的燃料速率数据,通过一个或多个数据记录器传输的来自ECU的发动机速度和其他操作参数,通过一个或多个数据记录器传输的扭矩传感器数据, 更多的数据采集器和传统的燃料日志数据。

    LOW VISCOSITY LUBRICATING OIL COMPOSITIONS WITH INCREASING FLASH POINT

    公开(公告)号:WO2020132078A1

    公开(公告)日:2020-06-25

    申请号:PCT/US2019/067190

    申请日:2019-12-18

    IPC分类号: C10M105/32

    摘要: This disclosure relates to a lubricating oil having a lubricating oil base stock as a major component, and one or more lubricating oil additives as a minor component. The lubricating oil base stock has at least one first ester that is partially esterified, and at least one second ester that is fully esterified. The lubricating oil has a flash point from about 125°C to about 225°C as determined by ASTM D-93, and a kinematic viscosity (KV 100) from about 1 to about 5 at 100°C as determined by ASTM D-445. The at least one first ester and the at least one second ester are present in an amount such that, as the flash point of the lubricating oil is increased, the kinematic viscosity (KV 100) of the lubricating oil is decreased or maintained. This disclosure also relates to a method for increasing flash point, while decreasing or maintaining viscosity, of a lubricating oil in an engine or other mechanical component lubricated with the lubricating oil by using the lubricating oil.

    ASHLESS ENGINE LUBRICANTS FOR HIGH TEMPERATURE APPLICATIONS

    公开(公告)号:WO2019040580A1

    公开(公告)日:2019-02-28

    申请号:PCT/US2018/047453

    申请日:2018-08-22

    IPC分类号: C10M105/34 C10M169/04

    摘要: An ashless lubricating oil having a lubricating oil base stock as a major component, and a mixture of (i) at least one ashless antiwear additive, (ii) at least one ashless detergent, and (iii) at least one aminic antioxidant, as minor components. The lubricating oil base stock is a monoester obtained by a) reacting one Guerbet alcohol of 8 to 20 carbon atoms with a Guerbet acid, a linear or branched acid of 6 to 20 carbon atoms or b) reacting one linear or branched alcohol with at least 6 to 20 carbon atoms with a Guerbet acid of 8 to 20 carbon atoms. The lubricating oil base stock is present in an amount from 30 to 99.8 wt.% of the oil. A method for improving oxidative stability and high temperature stability of a lubricating oil in an engine or other mechanical component lubricated with the lubricating oil by using the ashless lubricating oil.

    FUEL COMPOSITIONS FOR CONTROLLING COMBUSTION IN ENGINES

    公开(公告)号:WO2018093530A1

    公开(公告)日:2018-05-24

    申请号:PCT/US2017/057612

    申请日:2017-10-20

    IPC分类号: C10L1/04 C10L1/06

    摘要: Naphtha boiling range compositions are provided that can have improved combustion properties (relative to the research octane number of the composition) in spark ignition engines and/or compression ignition engines. The improved combustion properties can be achieved by controlling the total combined amounts of n-paraffins and isoparaffins that include a straight- chain propyl group (R1-CH2-CH2-CH2-R2). For such a straight-chain propyl group, R2 can correspond to any convenient CxHy group that can appear in a paraffin or isoparaffin. R1 can correspond to a hydrogen atom, making the straight-chain propyl group a terminal n-propyl group; or Ri can correspond to any convenient CxHy group that can appear in a paraffin or isoparaffin.

    ASHLESS ENGINE LUBRICANTS FOR HIGH TEMPERATURE APPLICATIONS

    公开(公告)号:WO2019040576A1

    公开(公告)日:2019-02-28

    申请号:PCT/US2018/047449

    申请日:2018-08-22

    IPC分类号: C10M169/04 C10M105/38

    摘要: An ashless lubricating oil having a lubricating oil base stock as a major component, and a mixture of (i) at least one ashless antiwear additive, (ii) at least one ashless detergent, and (iii) at least one aminic antioxidant, as minor components. The lubricating oil base stock is a branched polyol ester. The lubricating oil base stock is present in an amount from about 30 to about 99.8 mass percent, based on the total mass of the ashless lubricating oil. A method for improving oxidative stability and high temperature stability of a lubricating oil in an engine or other mechanical component lubricated with the lubricating oil by using the ashless lubricating oil. The ashless lubricating oil is useful as a passenger vehicle engine oil (PVEO).