SIGNAL VALVES IN MARINE DIESEL PLANTS

Document Type: 
Collection: 
Document Number (FOIA) /ESDN (CREST): 
CIA-RDP80-00809A000600060374-1
Release Decision: 
RIPPUB
Original Classification: 
S
Document Page Count: 
1
Document Creation Date: 
December 22, 2016
Document Release Date: 
August 17, 2011
Sequence Number: 
374
Case Number: 
Publication Date: 
October 8, 1954
Content Type: 
REPORT
File: 
AttachmentSize
PDF icon CIA-RDP80-00809A000600060374-1.pdf56.92 KB
Body: 
Sanitized Copy Approved for Release 2011/08/18: CIA-RDP80-00809A000600060374-1 CLASSIFICATION SECRET CENTRAL INTELLIGENCE AGENCY INFORMATION REPORT .1. N.. ..' .1. ? . .4... '.. W.1I.. .,. ...4.11..1.. ? ..I. NO. OF ENCLS. MISTED BELOW) SUPPLEMENT TO Al-HUM REPORT NO. I 50X1-HUM 1,. Modern marine diesel plants, especially those with high-speed interim! combustion engines, a'e frequently equipped with a system of safety and signal devices which in their aggregate are designed to guarantee damage free operation of the assembly. Signal devices are designed to give warning in case of non- nersal operating conditions of the assembly which threaten its safety. _2. In same marine Diesel plants (and in the overwhelming majority of turbine plants) so-called signal valves are installed. Theme valves are connected with safety regulators which are intended to std the nn in by !Inns of the fuel pump when the engine's revolutions exceed the normal revolutions by 10-15%. The signal valve gives a signal until the limit-switch begins to operate (usually when revolutions incr sse by 5%). The signal may be a bowling, Typhoon signal, etc. For example: Ow of the Caspian Shipping Line's fleet unit is the Diesel-S1 ctro tanker "General psi Aslanov" with a net tdeaage of 4500 tons. The Diesel-Slectrie plant of the tanbr consists of four main Diesel-Generators (DD) which provide current for two propeller electroiotors (T3D), which in turn cause the propeller screws to rotate. As main Diesel generators on the tanker, standard Diesel generators built for railroad trunk-line locomotives were installed. The model of the engine is "D-500. The normal power of each of these engines is 1000 effective HP with 740 revolutions per minute. "D-50" engines are four-cycle, six-cylinder, supercharge engines. These engines are equipped with safety regulators, which cause the Diesel engine to coos to a stop by romans of the fuel pump when the increase of revolutions of the Diesel over the normal rate represents 10-15% that is, 850 revolutions per mirate. Signal valves which give signals even until that cement when the safety regplator goes into action are connected with the regulator. The signal to given when the number of revolutions over the normal rate increases by about 5%, that is, whim the engine makes 780 revolutions per miarte. 50X1-HUM - cam! Sanitized Copy Approved for Release 2011/08/18: CIA-RDP80-00809A000600060374-1