GB640495A - Apparatus for use in the determination of the ignition quality of diesel fuels - Google Patents
Apparatus for use in the determination of the ignition quality of diesel fuelsInfo
- Publication number
- GB640495A GB640495A GB1537048A GB1537048A GB640495A GB 640495 A GB640495 A GB 640495A GB 1537048 A GB1537048 A GB 1537048A GB 1537048 A GB1537048 A GB 1537048A GB 640495 A GB640495 A GB 640495A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- ports
- solenoid
- cetane number
- energized
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000002283 diesel fuel Substances 0.000 title abstract 2
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 abstract 4
- 239000000446 fuel Substances 0.000 abstract 2
- 230000001276 controlling effect Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000000779 smoke Substances 0.000 abstract 1
- 230000001360 synchronised effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/50—Investigating or analyzing materials by the use of thermal means by investigating flash-point; by investigating explosibility
- G01N25/52—Investigating or analyzing materials by the use of thermal means by investigating flash-point; by investigating explosibility by determining flash-point of liquids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/50—Investigating or analyzing materials by the use of thermal means by investigating flash-point; by investigating explosibility
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Of Engines (AREA)
Abstract
<PICT:0640495/III/1> <PICT:0640495/III/2> In an apparatus for determining the cetane number of a Diesel fuel, comprising a valve 10 controlling the air flow through ports 8, Fig. 2, into a surge chamber 7 connected at 24 to the intake pipe of a test engine operating on the fuel, the valve 10 being slowly rotated to close the ports 8 until the engine misfires, at which position the cetane number is read off a calibrated scale 37 attached to the valve, the control edge 40, Fig. 2, and the parts 8a of the ports are so arranged that the angular position of the valve at misfire is in linear relation to the cetane number of the fuel. The intake air flows through pipes 28 ... 31 in a temperature regulating water jacket 25 to a chamber 35 and then through the ports 8 to the chamber 7. The valve 10 is rotated by synchronous electric motor 23 on energization of a solenoid 22a forming a magnetic clutch with a plate 22b on a shaft 21 carrying a pinion 20 engaging a gearwheel 19, and it is mounted between ball-bearings 11, 12, carried respectively by a springloaded plunger 13 and a screw 16 for axial adjustment of the valve if the conditions of the test differ from those at which the apparatus was calibrated. When the solenoid 22a is de-energized, a spring 41 moves the shaft 21 so that its end 42 is engaged for manual rotation by a wheel 44. The test engine is started with the ports 8 fully open, as shown in Fig. 2, and the solenoid 22a energized to start the valve rotation. The puff of smoke in the exhaust on misfire may actuate a photo-cell to de-energize the solenoid 22a, or it may be de-energized manually to stop the rotation, the cetane number being then read off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1537048A GB640495A (en) | 1948-06-07 | 1948-06-07 | Apparatus for use in the determination of the ignition quality of diesel fuels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1537048A GB640495A (en) | 1948-06-07 | 1948-06-07 | Apparatus for use in the determination of the ignition quality of diesel fuels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB640495A true GB640495A (en) | 1950-07-19 |
Family
ID=10057973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1537048A Expired GB640495A (en) | 1948-06-07 | 1948-06-07 | Apparatus for use in the determination of the ignition quality of diesel fuels |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB640495A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2966793A (en) * | 1957-01-28 | 1961-01-03 | Gen Electric | Shock tube for the study of combustion processes |
| EP1793110A3 (en) * | 2005-12-02 | 2008-07-16 | HONDA MOTOR CO., Ltd. | Control system for internal combustion engine |
-
1948
- 1948-06-07 GB GB1537048A patent/GB640495A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2966793A (en) * | 1957-01-28 | 1961-01-03 | Gen Electric | Shock tube for the study of combustion processes |
| EP1793110A3 (en) * | 2005-12-02 | 2008-07-16 | HONDA MOTOR CO., Ltd. | Control system for internal combustion engine |
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