MOEHWALD / インジェクター噴射量・噴射率計測ユニット

Moehwald GmbH Michelinstrasse 21 D-66424 Homburg/Germany Contact: Gerd Scherer Phone: +49 6841 707 311 E-Mail: g.scherer@moehwald.de HDA2 www.moehwald.de Injection quantity and rate measuring unit best testing – best quality Technical Data Measurement HDA-500 HDA-5000 HDA-25000 Injection frequency 30 – 3100 1/min 30 – 3100 1/min 30 – 3100 1/min Mass measuring resolution ~ 0.01 mg * <0.5 mg * <1 mg * (<0.4 mg * at 40 °C) Mass measuring repeatability 0 – 16: < 0.075 5 – 400: < 2 5 – 600: 3 (mg/injection) 16 – 60: < 0.1 > 400: 0.2 % of > 600: 0.5 % of 60 – 200: < 0.2 reading reading > 200: < 0.5 Total mass injected per cycle 0,1 – 500 mg 1 – 5000 mg 1 – 25000 mg Aquisition frequency 100 kHz 100 kHz 100 kHz Bandwidth of injection signal (adjustable by digital filter parameter) ≤ 10 kHz ≤ 10 kHz ≤ 4 kHz Minimum delay between 2 partial injections 30 µs 100 µs 100 µs Number of injections per cycle 1 – 10 1 – 10 1 – 10 Back pressure (adjustable py parameters) 5 – 95 bar 5 – 95 bar 5 – 250 bar Cooling circuit flow 100 l/h at 40 °C 100 l/h at 40 °C 200 l/h at 40 °C Number of cycle measurements with statistic values 2 – 10000 2 – 10000 2 – 10000 Automatic injection detection yes yes yes Automatic injection timing measurement for energizing and hydraulic injection signal yes yes yes Timing error of energizing timing ≤ 1 µs *** ≤ 1 µs *** < 1 µs *** Timing error of hydraulic timing ≤ 10 µs *** ≤ 10 µs *** ≤ 10 µs *** Calibrated pressure range of pressure sensor 0 – 100 bar (abs) 0 – 100 bar (abs) 0 – 280 bar (abs) Calibrated temperature range of pressure sensor 20 – 160 °C ** 20 – 160 °C ** 20 – 160 °C ** Synchronization via 1/rev. pulse or rotary encoder yes yes yes * Dependent on the compressibility of the test medium ** Standard, for cold tests –40 up to +160°C *** Dependent on the rising time of the signal – typical 0,1 µs for hydraulic injection © All rights reserved by Moehwald GmbH, including the right to file in- dustrial property rights. We reserve all rights of disposal such as copying and distribution rights. Subject to technical modifications and errors. This document is a schematic representation and not an operating manual. There may be some differences in illustrations compared to the operating manual. Please refer to the operating manual with regard to the proper use of the system.

2 | HDA2 Injection quantity and rate measuring unit HDA2 Injection quantity and rate measuring unit | 3 Special features and operating principle Components The HDA measurement device enables a comprehensive analysis of injector characteristics. The injected mass and the injection rate shape are determined with a high sample rate and recorded. HDA2 measuring By analog input of the injector energizing signals in the HDA electronics an extended timing analysis of computer the injection cycle can be performed. If additionally e.g. the rail pressure signal is supplied, the interaction of the injection system and the complete system is visible. A multiplicity of curves and measuring values are stored in the result data for each recorded injection cycle, which are available for an extensive investigation of the injector. Special features Operating principle  Standard measurement range up to 500 mg with the The HDA measurement head consists of a closed HDA-500, 5000 mg with the HDA-5000 respectively measurement chamber of constant volume filled with 25000 mg with the HDA-25000 test medium. An injection into the closed chamber  Flexible adaptation capability using type-specific volume increases the chamber pressure. The pres- injector adapters sure increase depends on the compressibility of the  Automatic evaluation of up to 10 partial injections test medium. By the direct measurement of the  Automatic injection timing analysis of up to 10 partial sound velocity in the test medium, the influences injections (power on / power off response time, etc.) of temperature, density, and compressibility are  Medium-independent measuring principle detected. Therefore the unit can be used with diffe- Measuring computer HDA2 19˝ Measuring head  Robust design, no moving parts, no wear rent test media without the involvement of HDA2 measuring computer is downward compatible  Measurement chamber with high-precision,  Measurement computer as 19˝rack, 4 RU medium equations that are generally imprecise. to HDA1 system. Existing HDA measuring heads can temperature-compensated pressure sensor  Dimensions of measurement head of the HDA-500 be used without any problems.  Ultrasonic sensor enable installation at a cylinder head  Dual Core i7 CPU  Safety pressure limiting valve  Installation space and hydraulic connections of the Tempered stainless  Real time operating system (based on Linux)  Drainage valve Injector HDA-500 are compatible with EMI2/ E MI21 steel chamber  10.1˝ Touch display  Amplifier electronics  Up to 10 kHz bandwidth for the injection rate signal Cooling channels  6 ADC channels, ± 10 V, with 100 kHz sampling  Ultrasonic evaluation electronics Pressure control  Real-time acquisition of all measured values valve Pressure sensor rate, of which 4 can be used for user-specific tasks  Geometrical compatible to the EMI  Control at the unit itself, or remote control 0 – 100 bar  3 analogue channels ± 10 V, 100 kHz (chamber  Counterpressure is generated by the test sample  Open host interface-DLL for remote control of the unit Path of ultrasonic Drainage valve pressure, chamber temperature, pressure rate) itself (no nitrogen supply needed)  Optional first-shot measurement capability  Calibration independent of the measuring head  Broad temperature range from –40 °C to 160 °C Ultrasonic (replaceable)  Two freely usable analog input channels sensor ±10 V, 100 kHz (control, rail pressure)  Back presssure is generated by the test sample Evaluation itself (no nitrogen supply needed) electronic  Synchronous acquisition of injector control, rail pressure and injection rate HDA HDA-500 HDA-5000 HDA-25000 measuring with stiff with large head clamping engine fixture for injector truck injectors

Moehwald GmbH Michelinstrasse 21 D-66424 Homburg/Germany Contact: Lukas Übelacker Phone: +49 6841 707 510 NEW E-Mail: L.uebelacker@moehwald.de HDA2 www.moehwald.de Injection quantity and rate measuring unit best testing – best quality Technical Data Measurement HDA-500 HDA-5000 HDA-25000 Injection frequency 30 – 3100 1/min 30 – 3100 1/min 30 – 3100 1/min Mass measuring resolution ~ 0.01 mg * <0.5 mg * <1 mg * (<0.4 mg * at 40 °C) Mass measuring repeatability 0 – 16: < 0.075 5 – 400: < 2 5 – 600: 3 (mg/injection) 16 – 60: < 0.1 > 400: 0.2 % of > 600: 0.5 % of 60 – 200: < 0.2 reading reading > 200: < 0.5 Total mass injected per cycle 0,1 – 500 mg 1 – 5000 mg 1 – 25000 mg Acquisition frequency 100 kHz 100 kHz 100 kHz Bandwidth of injection signal (adjustable by digital filter parameter) ≤ 10 kHz ≤ 10 kHz ≤ 4 kHz Minimum delay between 2 partial injections 30 µs 100 µs 100 µs Number of injections per cycle 1 – 10 1 – 10 1 – 10 Back pressure (adjustable py parameters) 5 – 95 bar 5 – 95 bar 5 – 245 bar Cooling circuit flow 100 l/h at 40 °C 100 l/h at 40 °C 200 l/h at 40 °C Number of cycle measurements with statistic values 2 – 10000 2 – 10000 2 – 10000 Automatic injection detection yes yes yes Automatic injection timing measurement for energizing and hydraulic injection signal yes yes yes Timing error of energizing timing ≤ 1 µs *** ≤ 1 µs *** < 1 µs *** Timing error of hydraulic timing ≤ 10 µs *** ≤ 10 µs *** ≤ 10 µs *** Calibrated pressure range of pressure sensor 0 – 100 bar (abs) 0 – 100 bar (abs) 0 – 280 bar (abs) Calibrated temperature range of pressure sensor 20 – 160 °C ** 20 – 160 °C ** 20 – 160 °C ** Synchronization via 1/rev. pulse or rotary encoder yes yes yes * Dependent on the compressibility of the test medium ** Standard, for cold tests –40 up to +160°C *** Dependent on the rising time of the signal – typical 0,1 µs for hydraulic injection © All rights reserved by Moehwald GmbH, including the right to file in- dustrial property rights. We reserve all rights of disposal such as copying and distribution rights. Subject to technical modifications and errors. This document is a schematic representation and not an operating manual. There may be some differences in illustrations compared to the operating manual. Please refer to the operating manual with regard to the proper use of the system.