1、MIL-E-LBLYS (3) 28 999990b O390775 ciz- MIL-E- 18149(SHIPS) AMENDMENT - 3 5 July 1955 SUPERSEDING Amendment - 2 22 March 1955 MILITARY SPECIFICATION ENGINES, DIESEL, PROPULSION; CLUTCHES, MAGNETIC; COUPLINGS, SHAFT, FLEXIBLE; AND GEAR ASSEMBLES, SPEED DECREASER - LST 1171 CLASS VESSEL This amendment
2、 forms a part of Military Specification MIL-E-l8149(SHIPS), 11 August 1954. Page 1, title, line 3: Delete “1171” and substitute “11731. Page 1, paragraph 1. 1, line 2: Delete “1171t and substitute “1173”. Pages 1, 2 and 3, paragraph 2.1: Add the following Specifications and Draw- ings: SPECIFIC A TI
3、ONS MILITARY “MIL-T-873 - Tubing, Copper, Seamless, for Pressures Up to 4000 Pounds Per Square Inch. MIL-S-890 - Steel: Forgings and Bars for Hulls, Engines and Ordnance (Heat Treated). MIL-F-1183 - Fittings, Tube; Bronze, Cast Silver Brazing. MIL-F-1189 - Valve, Gate, Bronze, Flanged End, Working M
4、IL-V-2961 - Valves, Pressure-Reducing, Air (Shipboard Use). MIL-L-9000 - Lubricating Oil, Internal Combustion Enghe, Diesel. MIL-D-18051 - Drawings Applicable to Vessels of the United States Navy, Microfilming Of. MIL-F-20042. - Flanges, Tube, Compositioc, Cast (Silver Brazing 50, 100 and 200 P.S.I.
5、, W.S.P. MIL-V-20065 - Valve, Relief (Shipboard Use). Pressures Up to 400 PSI (Shipboard Use). FED. SUP. CLASS 28 15 f Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-E-181I7 (3) 28 9777706 0170776 6 MIL - E- 18 149(SHLPS) AMENDMENT - 3 NAVY DEPA
6、RTMENT “17F8 - Fans, Ventilating. 44T15 - Tubing, Brass, Seamless, 100 - 450 Pounds Working Pressure (Sq. In. ). DRAWINGS BUREAU OF SHIPS “B-105 - Flanges Composition Pipe Fittings, Steam Service B-136 - Flange Composition Globe, Angle and Cross Valves. B-164 - Composition Globe and Angle Valves Uni
7、on Ends. B-165 - Composition Gate Valves for 1/4 to 2 inch I.P.S. Tubing. B-177 - Compcsition Silver Brazing Flanges for Copper and Copper -Nickel Alloy Tubing and Brazed Pipes. B-189 - Bulkhead and Deck Connections, Plain and Insulated Types for Copper and Copper Nickel AUoy Tubing 1/4 Inch to 8 in
8、ches inclusive. B-194 - Composition Union and Swing Check Valves Maximum Service 200 Pound Pressure and/or 425” P. Temperature. LST 1173-206-1559441 - Main Propulsion Control Console. FJOO-S4800- 3000 - Piping Schedule; Pipe Fittings, Valves and Types 101 to 200 P. s. I. of Joints Used in Piping Sys
9、tems. ” Page 4, paragraph 3. 1: Delete and substitute: “3. 1 Material. - The material shall be as hereinafter specified. All component parts shall operate on one grade of lubricating oil in accordance with Specifica- tion MIL-L-9000. Page 4: Add as paragraph 3.1.1: (3. 1. 1 Ail piping, vzlves, fitti
10、ngs and joints shall be in accordance with Draw- ing 5000-S4800-3000. ? 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-E- 18149(SHLPS) AMENDMENT - 3 Page 4; paragraph 3.2: Delete and substitilte: “3.2 Component parts. - One set of machinery sh
11、all consist of the following components and any additional accessories or shafting necessary to make a com- ple te ins tailation: 6 - Direct reversing type Diesel engines, including accessories, instruments, mufflers, and controls with cocsoles. 2 - Sets of reduction gears, including attached lubric
12、ating oil pumps, thrust bearing accessories, and turning gear. 6 - Electric couplings, including controls, bearings, stub shafts, and housing or guards. Flexible couplings as necessary. Page 4, paragraph 3.2.1.2: Add “The two forward starboard engines will be in engine room number 1 and will be iden
13、tified as engines 1A and lJ3. The after engine will be in engine room number 2 and will be identified as 1C. The two for- ward port engines will be identified as engines 2A and 2B, and installed in engine room number 3. The after port engine will be in rocm number 4, and identified as 2C.” Page 5, p
14、aragraph 3.2.1.4: Add “Accessories or components attached to the engine shall be designed to withstand the same accelerating forces used in the design of engine footings, structural supports, and stiffeners. ” Page 5, paragraph 3.2.1.6: Column 1, line 6 delete “if required” and column 2, line 2 dele
15、te and substitute “An intake silencer if required”. Page 5: Add as paragraph 3.2.1.6.2: sr3. 2.1.6.2 Guards. - Guards shall be provided for all engine builder furnished rotating machinery when such guards are to be attached to the machinery itself. ” Page 7, paragraph 3.2.1.8.1.2: Add by the bureau
16、or agency concerned. ” Page 7, paragraphs 3.2. 1.9.1 and 3.2.1.9.2: Delete and substitute: “3.2.1.9.1 Local controls. - Each engine shall be provided with local controls for starting, stopping, reversing direction of rotation, speed control in either direc- tion and select remote or local control. T
17、he controls shall be located at the free end on the right hand side when facing the free end. An indicator shall be provided to show whether the- engine is in the - ahead or astern rotation position. Means shall be 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without licens
18、e from IHS-,-,-MIL-E-3839 (3) 28 7999906 0370778 T (a) Select local or remote Operation Of the associated electric (b) Engage or disengage associated electric coupling. (c) Emergency disengagement of the other two engines on its Shaft, (d) coupling engagement indicating lights. One light to be blue
19、and marked “Engaged” and one amber light to be marked either all three engines and one shaft together, or each enghe individually. Pilot house operation is not required. Each console will control the engines for one shaft only. Each console shall provide the following: (a) Individual engine control
20、for starting, idling, and controlling (b) An electric coupling control to energize or de-energize the speed of the engine in either the ahead or astern direction. couplings of engines operating on individual control. This control shall have three positions as foilows: (i) Ahead position to energize
21、only the coupling(s) of ali engine(s) running in the ahead direction, (2) Off position with all couplings de-energized. (3) Astern position to energize ozzly the coupling(s) of engine(s) running in the astern directicn. (c) Control of slip in the energized electric coupling(s) for propeller (d) A se
22、lector for each engine which will place it m either individual (e) A group cont?ol that will simultaneousiy start, stop, idle and speeds lower than idling speed of engine. control or group control. control speed in either ahead or astern direction of all engines on group control and to energize or d
23、e-energize the associated couplings. indicate the load on each engine. between engines. (f) An injection pump rack position indicator for each engine to (9) A vernier adjustment for each engine to permit load balancing Provided by IHSNot for ResaleNo reproduction or networking permitted without lice
24、nse from IHS-,-,-. MIL-E-L3LI9 (3) 28 m 9777706 0370777 L m MT L- E - 18 14 9 (SHIPS) AMENDMENT - 3 (h) Coupling engagement indicating lights - one amber light marked “Disengaged” and one blue light marked LiEngaged for each coupling. Each pair of lights to beh line fore and aft (or vertically) rath
25、er than s,ide by Side. (i) Motor running light for coupling cooling fans - one red light per coupling to indicate blower is not running. (j) Contact makers for group control and for electric coupling control for wrong direction indication. (k) Normal air supply indicating light - one green light mar
26、ked “Normal” to indicate normal air supply (starting air flasks). (f?) Depleting air supply indicating light - one red iight marked L4Low” to indicate low air supply (starting air flasks). (m) One control air indicating gage - one red light marked 44L” to indicate low control air supply. (n) Engine
27、tachometers which indicate direction of rotation and speed. (o) One amber light marked LLocal for each engine. Light is energized when operating on local control. These lights to be adjacent to the individual control handles and separate from the coupling light, item (h) above. “3.2.1.9.2.1 Interloc
28、ks. - The following interlocks shall be provided: (a) To prevent operation at reduced excitation when engine speed is in excess of approximately 130 percent of idling speed. (b) To prevent energizing couplings when shaft turning gears are engaged. (c) To prevent starting engines when engine jacking
29、gear is engaged. (d) To prevent energizing couplings at any time on engines that are running in opposite directions. When one or more engines are on group control, individual control of other engine(s) shall be possible, but the respective electric coupling control shall be inoperative. The electric
30、 coupling control lever shall be operative only when aii engines are on individual control. (e) To prevent operation of engines and couplings by individual or group control at the console when engines are being controlled locally except that there shall be an emergency cut out at “C” engines for de-
31、energizing couplings of “A and “B” engines. (f) Other interlocks as necessary to prevent maloperation and promote safety. - 5 I. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MTL-E- 18149(Sm) AMENDMENT - 3 (g) Interlocks are to fail safe. Fail safe
32、 is defined as not being able to energize couplings of engines running in opposite directions. On air failure, the engine shall stop and couplings shaii be de-energized Operation of the power plant can then be by local control only. Interlocks shall not “trip out” until air pressure reaches 10 perce
33、nt of normal. (h) The engine reversing mechanism shall be provided with an inter- lock which will prevent fuel injection to the cylinders before the crankshaft has stopped rotating in order to prevent firing while the engine is still rotating in the wrong direction. This interlock will be effective
34、for changes in rotation both from ahead to astern and from astern to ahead. (i) On each rectifier control cubicle for electric slip couplings pro- vide an “Emergency” switch for closing the electric coupling control circuit thereby by-passing ail pneumatic interlocks. This method of coupling control
35、 to be employed when operating “A” and “B” engines locally. “3. 2.1.9.2. 2 Terminal strips. - Electric terminal strips for bottom entrance and piping connections at a common point shall be provided on each console. Console front and side panels shall be removable. Piping, fittings and joints used in
36、 the control system shaii conform to the following: Pipe or tubing - Specifications 44T15 and MIL-T-873. Valves - - - - - - - - - - - - - - Class iI of Specification MIL-V-1189 (250 p. s. i.), and Specifications ML-V-2961 and MIL-V-20065; Drawings E%-165, B-164, l3-136, Ri94 Fittings - - - - - - - -
37、 - - - - - Specification MIL-F- 1183; Drawings EL 105 and JO ints - - - - - - - - - - - - - Specifications MIL-F-20042 and MiLP-1183; Bolts - Specification MIL-B-857, bolts, type B, semi- B- 189. Drawing B-177. finish, nuts, type A semi-finish (steel, galvanized). “3.2.1.9.2.3 With this system of co
38、ntrols, it shail be possible or each shaft: (a) To operate and maneuver with all engines running together (b) To run one or more engines ahead and one or more engines from minimum power to maximum power. astern on individual contkol, turning the shaft in either the ahead or astern direction by the u
39、se of the coupling control . without having to stop and reverse the engines. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-E-lt8LLl7 (3) 28 7777706 OL907L T MIL-E- 18149(SHIPS) AMEIuDMENT - 3 (c) Run and test engines individually eter repair
40、work without interfering with the other engines on the shaft. This may be done locally at the engine or at the console when the operating engines are on group control. It may also be accomplished from the console when operating enghes are one individual control providing that the circuit breaker on
41、the control cubicle for the electric coupling rectifier, associated with the test engine, is thrown to the“0FF” position. (d) Run rrC” engines and operate respective couplings locally including manual slip control, in case of loss of engine rooms No. 1 and No. 3. “3.2.1.9.2.4 Location. - Location of
42、 components, electrical circuits and source of electrical energy shall be arranged to permit operation of “A” and “B” engines in englne rooms No. 1 and No. 3 if engine rooms No. 2 and No. 4 are flooded and conversely operation of rC engines shall be possible if engine rooms No. 1 and No. 3 are flood
43、ed. ;3.2.1.9.2.5 Gage boards. - Gage boards for A” and *B” engines to be mounted at the control stand so that they are visible from local engine stations as well. Gage boards for “C” engines shall be mounted so that they are visible from the local station for the V.” engines. Gage boards to be suppl
44、ied by the the shipyard. 43. 2.1.9.2.6 Pyrometers. - Pyrometers for “A” and rrB” engines shall be mounted so that they are handy to control stand. Pyrometers for “C” engines to be located ner their local control stations. “3.2.1.9.2.7 Automatic governor booster, - The control FRI11 hclude an automat
45、ic governor booster of the engine in order to eliminate the possibility of engine stalling when energizing the coupling, if required. ” Page 8, paragraph 3.2.1. 11: Delete and substitute: “3.2.1.11 Engine lubricating oll system. - Oil shall be cooled by fresh water in accordance with Drawing 5000-54
46、501-64492. Each engine shail be provided with an oil pan and scavenging pump for drain to a sump tank. The capacity of the scavenging pump shal be at least 125 percent that of the pressure pump. The sump tanksfor the engines wU be furnished by the shipbuilder. A connection in the engine lubrication
47、system shall be provided for supplying the necessary quantity of OU to the driving side of.the electric coupling. ” 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-E-LL49 (3) 28 m 9999706 0390782 L m MTL-E-l8149(SKIPS) AMENDMENT - 3 Page 8, par
48、agraph 3.2. 1. 11.1, line 4: Delete L4bypass” and substitute shunt” and add: “The strainer shall be located between the cooler and the engine.” Page 8, paragraph 3.2.1.12: Add “with the exception that all copper nickel Page 8, paragraph 3.2.1.12.3, line 3: Delete 3. i A fabricated steel enclosure sh
49、aU be provided generally in accord- ance with Specification MI. aboae this level, the wing shai be airtight as required to properly distribute the ventilation air. Cooling air shall be taken direct from the engine room through a wire mesh protected open- ing(s). Ventilation will be by means of separate exhaust fans, furnished by others. Volume and pressure of ventilating air requir
