国产在线每日更新,久久精品国产免费中文,一级一级一级一级毛片,精品新一区二区三区四区,狠狠干天天干,九九热线有精品视频99,久久久不卡国产精品一区二区 ,国产成人精品一区二区三区免费_久久亚洲精品综合国产仙踪林_国内精品自在自线视频_熟妇人妻无码XXX视频 ,亚洲精品视频在线播放,精品成人一区二区三区电影,亚洲激情视频专区,国产激情无码久久久久久,国产午夜理论片不卡, ,&

The CFR F5 Cetane Rating Unit is the globally accepted standard for determining and certifying the ignition quality of diesel fuels. First introduced in 1938, the CFR F5 today continues to be recognized as the industry gold standard for obtaining cetane numbers and against which all other methods are referenced.

ASTM D613: Standard Test Method for Cetane Number of Diesel Fuel Oil
EN ISO 5165: Determination of the Ignition Quality of Diesel Fuels - Cetane Engine Method

Key Design Features

Variable Compression Ratio Cylinder Head

A special cylinder head with pre-chamber and variable compression plug hand-wheel assembly allows for continuous variation of the compression ratio while the unit is operating. The head and cylinder are separate units for ease of maintenance. The compression ratio can be adjusted from 8:1 to 36:1, enabling a full range of diesel fuels to be tested without changing cylinder heads.

CFR Crankcase

The CFR-48 style crankcase combines durability with simplicity of design. All CFR engines use the same cast iron, box-type crankcase, which features removable side doors and gear cover for easy maintenance and repair of critical components.

Fuel Injection System

Indirect fuel injection is provided by an injector paired with a high-pressure pump. Fuel flow rate and injection timing are completely adjustable during engine operation via dial micrometers. Three fuel supply tanks and a special three-way valve permit convenient switching from test fuel samples to reference fuels.

Exhaust Surge Tank System

The CFR cetane rating unit is equipped with a surge or expansion tank that eliminates the resonant pulsations and back pressure that occur in the CFR rating unit’s exhaust lines during operation. Eliminating these variables in the testing process provides consistent and accurate cetane ratings.

Enhanced Digital Cetane Meter

When used with the new XCP digital control panel, the F5 offers enhanced functionality of the digital cetane meter. The system automatically monitors the injection advance and ignition delay, and when these two readings fall within ASTM specifications, the display changes from red to green, indicating to the operator that the ratings can be recorded. This new digital meter eliminates the need for operators to manually watch the readings and calculate whether they are within specifications.

Other Important Features

· Software-integrated Safety Monitoring Systems shut down the engine when any of the following conditions are experienced: facility electrical power loss, low oil pressure, loss of cooling water (overheating of the condenser) or electrical overload of the synchronous/reluctance motor.

· Fuel Flow Safety Shut-Off Solenoid prevents uncontrolled engine over-speed by stopping fuel delivery if electrical power is lost.

· Jacket Coolant Condenser of the thermal syphon, ebullient, recirculating cylinder jacket type. While very simple in design, it maintains constant cylinder water jacket temperature for stable operation.

· Synchronous/Reluctance Motor (three-phase) provides power for starting and absorbs the engine’s output to maintain constant speed during operation.

· Pressure Lubrication is used to lubricate all bearings and critical moving parts. An external oil pump permits access to the main oil supply for filtering, cooling or flow measurement.

相關(guān)產(chǎn)品