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This part of JB/T 6003 specifies the measurement method of inlet and outlet temperature、 flow rate、 and pressure difference of cold and hot fluids for internal combustion engine oil coolers (hereinafter referred to as coolers) under given conditions、 as well as the calculation method of performance parameters. This section is applicable to various structural types of coolers supporting automobiles、 tractors、 construction machinery、 small ships、 generator sets、 hydraulic transmission、 etc. Other coolers with similar structures can also be referred to for implementation. The following normative references are essential for the application of this document. For dated references、 only the dated version applies to this document. For undated references、 the new version (including all modification orders) applies to this document. GB 11122-2006 Definition and Terminology of Diesel Engine Oil 3 The following terms and definitions apply to this document -3.1 Tube and Shell Oil Cooler. The tube and shell oil cooler is a cooler composed of a bundle of parallel tubes inserted into a cylindrical shell. 3.2 Plate fin oil cooler The core of the plate fin oil cooler is composed of concave and convex fins and a flat chip. 3.3H type of plate fin oil cooler is a type of plate fin cooler structure、 where the concave and convex teeth of the cooler fins are arranged in the vertical direction of oil flow、 as shown in Figure 1 and Figure 2a). 3.4Z type of plate fin oil cooler is a type of plate fin cooler structure where the concave and convex teeth of the cooler fins are arranged in the direction of oil flow、 as shown in Figure 1 and Figure 2b). 3.5 Disc type of plate fin oil cooler is a type of plate fin cooler structure、 with circular fins and oil flowing through the fins in a circular manner、 as shown in Figure 2c). 3.6 Heat transfer area The surface area of the heat exchange surface of the cold and hot media in the heat transfer area cooler in the channel -
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