The instrument host is a standard single-cylinder engine with variable compression ratio, equipped with carburetor, intake air dryer, ignition system, signal sensor components, power system, and adjustable compression ratio from 4:1 to 18:1. 17-inch industrial computer touch screen design, new software operation interface of WINDOWS system, and clear function options. The operating software with independent intellectual property rights developed based on Windows system is easy to operate, intuitive information, and standard fuel test procedures. The relationship curve between octane number and compression ratio is built-in, and the test is simple and accurate. The computer automatically compensates for atmospheric pressure, and the The pressure compensation curve is set to avoid the trouble of manual table lookup
One machine has two uses, using a combined pulley and a new size mixed heater to achieve quick switching between the motor method and the research method
Four oil cup drop level carburetor, the liquid level adjustment is subtle and stable, with high repeatability, and the user can easily determine the maximum detonation liquid level
Real-time automatic display of various working conditions such as ignition advance angle, lubricating oil temperature, intake temperature, mixture temperature, compression ratio, cooling water temperature, speed, etc.
Stainless steel cooling water tower to avoid corrosion of the internal circulation water channel and improve the cooling effect of the cylinder liner
Hall ignition (magnetic induction ignition) technology, repeatability is less than 0.2/R octane number. Magneto-induced knock sensor, effectively improves sensitivity and anti-interference ability, knock signal is stable and standardized
Configured with high-power dual-circulation air conditioner (ice tower), effectively supports the intake requirements of large-bore engine
Exhaust configuration: The instrument is equipped with a silencer
Precision laser displacement sensor, no delay in adjustment, accurate positioning of cylinder height, and has limit safety protection function
Two-stage oil filtration and auxiliary preheating function, effectively lubricate and clean the oil, shorten the preheating time, and ensure long-term stable operation of the equipment
Bundled cable connection, neat and beautiful, strong and weak electricity separation, solve the influence of electromagnetic interference, stable and reliable data transmission
Safety system: set emergency stop function
Automatically collect and save test data
Real-time display of engine operating pressure and negative pressure gauge
Automatically record startup and test cumulative time, and automatically display maintenance reminders
| Technical Specifications | |
| Test Method | Meet GB/T 5487, GB/T 503, ASTM D2699, ASTM D2700,IP 236, IP 237,EN ISO 5163,EN ISO 5164 |
| Octane test range | 40 ～ 120 |
| Cast iron cylinder diameter | 82.55mm（3.250inch） |
| Piston stroke | 114.30mm（4.50inch） |
| Cylinder capacity | 0.61L（37.33in3） |
| Compression ratio adjustment range | 4:1 ~ 18:1 (automatic or manual control) |
| Engine speed | Motor method: 900rpm ± 9rpm Research method: 600rpm ± 6rpm |
| Inlet and exhaust valve clearance (in operation and hot state) | 0.20mm ± 0.025mm（0.008in ± 0.001in） |
| Spark plug gap | 0.51mm ± 0.13mm（0.020in±0.005in） |
| Lubricating oil pressure | 172 ～ 207kPa（25psi ～ 30psi） |
| Lubricating oil temperature | 57℃±8℃（135℉±15℉） |
| Cylinder jacket coolant temperature | 100℃±1.5℃（212℉±3℉） |
| Motor method mixture temperature | 149℃±1℃（300℉±2℉） |
| Motor method intake air temperature | 38℃±2.8℃（100℉±5℉） |
| Research method intake temperature | 52℃±1℃ (125℉±2℉) (under standard atmospheric pressure) Corrected with atmospheric pressure, maintained within ±1℃ |
| Ignition advance angle (real-time display) | Motor method: 26° btdc (ε=5.0), automatically adjusted by computer according to compression ratio Research method: 13° btdc, fixed |
| Communication interface | USB |
| Data Output | LIMS or Printer |
| Machine power | 12KW |
| Instrument use environment | Temperature: 5～35℃; Humidity: 20～90% RH |
| Instrument power supply | AC380V±10%,50Hz AC220V±10%，50Hz |
| Dimensions | 1650mm wide × 820mm deep × 1480mm high |
| Net weight of instrument | 900 KG |