GB804541A - Improvements in detectors of oil mists and the like - Google Patents
Improvements in detectors of oil mists and the likeInfo
- Publication number
- GB804541A GB804541A GB3203754A GB3203754A GB804541A GB 804541 A GB804541 A GB 804541A GB 3203754 A GB3203754 A GB 3203754A GB 3203754 A GB3203754 A GB 3203754A GB 804541 A GB804541 A GB 804541A
- Authority
- GB
- United Kingdom
- Prior art keywords
- photo
- electric cell
- probe
- oil mist
- secured
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
- G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
- G01N21/534—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke by measuring transmission alone, i.e. determining opacity
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)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
804,541. Light-sensitive mist detectors. GRAVINER MANUFACTURING CO. Ltd. Oct. 31, 1955 [Nov. 5, 1954], No. 32037/54. Class 40 (3). An arrangement for detecting excessive concentrations of oil mists in engine crank-cases (e.g. due to overheated bearings &c.) comprises a hollow louvred probe 10 adapted to be inserted into the crank-case and inside which is positioned a photo-electric cell 14 secured to and spaced a predetermined distance from (by means of hollow rods 20) a unitary structure including an electric lamp 13 the structure being arranged to be clamped between a flange 11, attached to the probe and secured to the outside of the crankcase, and a housing 12 the hinged portion 12a of which is secured, in the closed position by means of wing nuts 18. To prevent oil mist from entering the lamp housing 12 and the photo-electric cell housing 17 both housings are sealed by means of translucent windows 15 and 17b respectively. In an alternative construction the positions of the photo-electric cell and light source may be interchanged (Fig. 4, not shown) and in each arrangement supply leads to the element which is positioned inside the probe are brought out through one of the hollow rods 20 to a plug 31 to which the supply leads to the lamp are also connected and which connects with an external control and warning circuit arrangement via a plug and socket 31, 32. The latter circuit arrangement (Fig. 3, not shown) includes an indicating meter and a moving-coil relay, connected in series, and operated directly by the signal generated by the photo-electric cell. The meter is calibrated in terms of the obscuration of the photo-electric cell which is produced by the oil mist present in the probe (and therefore in the crank-case) and the relay is connected in a warning and indicating circuit arrangement which gives a visible indication of normal operation, with the concentration of oil mist at a safe level, and both a visible indication and audible warning when the oil mist concentration exceeds a predetermined level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3203754A GB804541A (en) | 1954-11-05 | 1954-11-05 | Improvements in detectors of oil mists and the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3203754A GB804541A (en) | 1954-11-05 | 1954-11-05 | Improvements in detectors of oil mists and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB804541A true GB804541A (en) | 1958-11-19 |
Family
ID=10332135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3203754A Expired GB804541A (en) | 1954-11-05 | 1954-11-05 | Improvements in detectors of oil mists and the like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB804541A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6137582A (en) * | 1996-09-13 | 2000-10-24 | Electrical Engineering Company Ltd. | Device for determining measured values, especially the concentration of an aerosol in a closed space of a working machine |
| GB2408798A (en) * | 2003-12-03 | 2005-06-08 | Horiba Ltd | Light-scattering oil mist detecting device with means for preventing oil droplets entering the casing |
| EP1936358A1 (en) * | 2006-12-21 | 2008-06-25 | Horiba, Ltd. | Oil mist detector |
| CN102297023A (en) * | 2011-07-14 | 2011-12-28 | 北京伟林科信科技有限公司 | Open type cavity structure for preventing oil drops from splashing to affect oil mist sensor |
-
1954
- 1954-11-05 GB GB3203754A patent/GB804541A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6137582A (en) * | 1996-09-13 | 2000-10-24 | Electrical Engineering Company Ltd. | Device for determining measured values, especially the concentration of an aerosol in a closed space of a working machine |
| GB2408798A (en) * | 2003-12-03 | 2005-06-08 | Horiba Ltd | Light-scattering oil mist detecting device with means for preventing oil droplets entering the casing |
| GB2408798B (en) * | 2003-12-03 | 2006-11-01 | Horiba Ltd | Oil mist detecting device |
| EP1936358A1 (en) * | 2006-12-21 | 2008-06-25 | Horiba, Ltd. | Oil mist detector |
| CN102297023A (en) * | 2011-07-14 | 2011-12-28 | 北京伟林科信科技有限公司 | Open type cavity structure for preventing oil drops from splashing to affect oil mist sensor |
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