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The fuel injection pump is intended to validate the accuracy of calibrating nozzle and holder assemblies for applications using 0.4 - 0.8 mm diameter orifice plates and to assist in identifying problems in fuel injection pump test stands. This SAE Recommended Practice is divided into two parts: Part I—Design, Description and Specifications of the Fuel Injection Pump; and Part II—Test Procedures for Using the Fuel Injection Pump.

The fuel injection pump is intended to validate the accuracy of calibrating nozzle and holder assemblies for applications using 0.4 - 0.8 mm diameter orifice plates and to assist in identifying problems in fuel injection pump test stands. This SAE Recommended Practice is divided into two parts: Part I—Design, Description and Specifications of the Fuel Injection Pump; and Part II—Test Procedures for Using the Fuel Injection Pump.

This SAE Standard establishes a vocabulary and definitions relating to the components used in fuel injection systems for compression ignition (diesel) engines. Definitions are separated into six sections by topic as follows: Section 3— Fuel Injection Pumps Section 4— Fuel Injectors Section 5— Unit Injectors Section 6— Governors Section 7— Timing Devices Section 8— High Pressure Pipes and Connections NOTE— When the word "fuel" is used in the terms listed it may be omitted providing there can be no misunderstanding.

This part of SAE J968 specifies two types of calibrating nozzle and holder assemblies intended for the testing and setting of diesel injection pumps on test benches. It applies to: a A calibrating nozzle and holder assembly with a single hole orifice plate; b A calibrating nozzle and holder assembly with a delay pintle type nozzle. The approximate range of the calibrating nozzle and holder assembly is up to: a 300 mm3/stroke with the single hole orifice plate; b 150 mm3/stroke with the delay pintle type nozzle. Setting and maintenance requirements are specified in ISO 4008/3.

This part of SAE J968 specifies two types of calibrating nozzle and holder assemblies intended for the testing and setting of diesel injection pumps on test benches. It applies to: a A calibrating nozzle and holder assembly with a single hole orifice plate; b A calibrating nozzle and holder assembly with a delay pintle type nozzle. The approximate range of the calibrating nozzle and holder assembly is up to: a 300 mm3/stroke with the single hole orifice plate; b 150 mm3/stroke with the delay pintle type nozzle. Setting and maintenance requirements are specified in ISO 4008/3.