Titanic's Engines

[D Happ]

Who made the tripple expansion engines on the Titanic?
Can't find the answer.

[The Bigfella]

Here's a pretty good model of one....

http://www.titanic-model.com/db/db-03/hahn.html

[The Bigfella]

Description. – The propelling machinery was of the combination type, having two sets of reciprocating engines driving the wing propellers, and a low-pressure turbine working the centre propeller. Steam was supplied by 24 double-ended boilers, and five single-ended boilers, arranged for a working pressure of 215 lb per square inch. The turbine was placed in a separate compartment aft of the reciprocating engine-room and divided from it by a watertight bulkhead. The main condensers, with their circulating pumps and air pumps, were placed in the turbine room. The boilers were arranged in six watertight compartments, the single-ended boilers being placed in the one nearest the main engines, the whole being built under Board of Trade survey for passenger certificate.
Reciprocating Engines. – The reciprocating engines were of the four-crank triple expansion type. Each set had four inverted, direct-acting cylinders, the high-pressure having a diameter of 54 in., the intermediate pressure of 84 in., and each of the two low-pressure cylinders of 97 in., all with a stroke of 6 ft. 3 in. The valves of the high pressure and intermediate cylinders were of the piston type, and the low-pressure cylinder had double-ported slide valves, fitted with Stephenson link motion. Each engine was reversed by a Brown’s type of direct-acting steam and hydraulic engine. There was also a separate steam-driven high-pressure pump fitted for operating either or both of the reversing engines. This alternative arrangement was a stand-by in case of breakdown of the steam pipes to these engines.
Turbine. – The low-pressure turbine was of the Parson’s reaction type, direct coupled to the centre line of shafting and arranged for driving in the ahead direction only. It exhausted to the two condensers, placed one on each side of it. A shut-off valve was fitted in each of the eduction pipes leading to the condensers. An emergency governor was fitted and arranged to shut off steam to the turbine and simultaneously change over the exhaust from the reciprocating engines to the condensers, should the speed of the turbine become excessive through the breaking of a shaft or other accident.
Boilers. – All the boilers were 15 ft. 9 in. in diameter, the 24 double-ended boilers being 20 ft. long, and the single-ended 11 ft. 9 in. long. Each double-ended boiler had six, and each single-ended boiler three furnaces, with a total heating surface of 144,142 sq. ft. and a grate surface of 3,466 sq. ft. The boilers were constructed in accordance with the rules of the Board of Trade for a working pressure of 215 lb. per sq. in. They were arranged for working under natural draught, assisted by fans, which blew air into the open stokehold.



http://titanic-model.com/machinery.htm
At a guess, I'd say Harland & Wolff

[Hwyl]

I imagine Harland and Wolff did. Why would you think someone else would.

[The Bigfella]

Yeah, there's photos of them being assembled at H&W.

[D Happ]

I just read that article and don't know why I missed that.
Someone told me something different today.
Thanks.

[D Happ]

I knew they built the ship but didn't know they built the engines.
They didn't build the turbine.

[Hwyl]

Steam reciprocating engines were current technology, turbines were cutting edge. They are not claimed by Parsons http://en.wikipedia.org/wiki/Parsons_Marine_Steam_Turbine_Company