ISO 7440-2:1991
Road vehicles — Fuel injection equipment testing — Part 2: Orifice plate flow-measurement
Road vehicles — Fuel injection equipment testing — Part 2: Orifice plate flow-measurement
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 6
- Дата публикации:
- 28 ноября 1991 г.
- Издание:
- ISO IS 7440 edition 2 version 1
- ICS:
- 43.060.40
The described system and fixture ensure accurate flow-testing of the entire range of orifices from 0,4 mm to 0,8 mm diameter. This second edition cancels and replaces the first edition (1985). Annexes A and B are for information only.
Abstract
Overview
ISO 7440-2:1991 - "Road vehicles - Fuel injection equipment testing - Part 2: Orifice plate flow‑measurement" specifies a test system and fixture for accurate flow measurement of single‑orifice plates (pastilles à trou) used in injector calibration assemblies. The standard covers orifice diameters from and defines the measurement circuit, fixture geometry, reference conditions and correction procedures to ensure repeatable, traceable flow results for diesel fuel injection testing.
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