公开(公告)号：US20250123197A1

公开(公告)日：2025-04-17

申请号：US18916454

申请日：2024-10-15

Applicant: ExxonMobil Technology and Engineering Company

Inventor： Weixue TIAN ,  Spyridon KORRES ,  Pinzhi LIU ,  Jordan SMITH ,  Shuji LUO

IPC: G01N19/02

Abstract: Thermal imaging may be used for obtaining measurements of a tribological testing apparatus including a contact temperature. For example a method of calculating a contact temperature may include: introducing a testing sample into a contact zone of a tribological testing apparatus; engaging a testing operation of the tribological testing apparatus; measuring a contact emission of a testing surface of the tribological testing apparatus with an infrared camera; and calculating a contact temperature of the testing sample in the contact zone from the contact emission; wherein the tribological testing apparatus has a carbon coating on the testing surface of the contact zone, wherein the carbon coating has a first infrared emissivity, wherein the testing sample has a second infrared emissivity, and wherein the first infrared emissivity is within +/−20% of the second infrared emissivity.

公开(公告)号：US20230166635A1

公开(公告)日：2023-06-01

申请号：US17906955

申请日：2021-03-17

Applicant: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY

Inventor： Gary CHRISTENSEN ,  Kevin J. KELLY ,  Shuji LUO ,  Andrew E. TAGGI

IPC: B60L58/26 ,  B60L3/12 ,  H01M10/61 ,  H01M10/625 ,  H01M10/6567 ,  H01M10/66

CPC classification number: B60L58/26 ,  B60L3/12 ,  H01M10/61 ,  H01M10/625 ,  H01M10/6567 ,  H01M10/66 ,  B60L2240/425 ,  B60L2240/525 ,  B60L2240/545 ,  C09K5/10

Abstract: A method of operating a heat transfer system includes circulating a heat transfer fluid through a heat transfer circuit in fluid communication with an electric system, and obtaining real-time measurements of fluid properties of the heat transfer fluid. A dimensional effectiveness factor for the heat transfer fluid (DEFfluid) is calculated based on the fluid properties and for a selected pump and a selected dominant flow regime within the heat transfer circuit, and a dimensional effectiveness factor for a reference fluid (DEFreference) is calculated for the selected pump and the selected dominant flow regime within the heat transfer circuit. A normalized effectiveness factor (NEFfluid) of the heat transfer fluid is then obtained, whereby a health of the heat transfer fluid is obtained. If the NEFfluid is below a predetermined threshold, the health will be considered deteriorated, and if the NEFfluid is above the predetermined threshold, the health will be considered viable.

公开(公告)号：US20240301315A1

公开(公告)日：2024-09-12

申请号：US18546460

申请日：2022-03-21

Applicant: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY

Inventor： Abigail R. VAN WASSEN ,  Andrew E. TAGGI ,  Shuji LUO ,  Gary CHRISTENSEN ,  Kevin J. KELLY ,  Andrew D. SATTERFIELD

IPC: C10M161/00 ,  C09K5/10 ,  C10M129/08 ,  C10M129/70 ,  C10M129/84 ,  C10M145/30 ,  C10M145/32 ,  C10N40/00

CPC classification number: C10M161/00 ,  C09K5/10 ,  C10M129/08 ,  C10M129/70 ,  C10M129/84 ,  C10M145/30 ,  C10M145/32 ,  C10M2207/022 ,  C10M2207/281 ,  C10M2207/32 ,  C10M2209/105 ,  C10M2209/106 ,  C10N2040/40

Abstract: Heat transfer fluids corresponding to mixtures of at least one hydrogen bond donor and at least one hydrogen bond acceptor are provided. The heat transfer fluids can have an unexpectedly high heat capacity relative to the expected heat capacity based on the heat capacities of the at least one hydrogen bond donor and the at least one hydrogen bond acceptor. In some aspects, the heat transfer fluids can also have a sufficiently high electrical resistivity to be suitable for use in environments such as heat management systems in electric vehicles.