Beardmore-Halford-Pullinger: Difference between revisions
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The ''' | The '''B.H.P.''' engine | ||
WWI The authorities brought [[Frank Bernard Halford|Frank Halford]] back from France to develop the 160 h.p. [[William Beardmore and Co|Beardmore]] engine (which had been based on a water-cooled six-cylinder [[Austro-Daimler]] engine) with a view to designing a more powerful unit, which he did with [[Arrol-Johnston]] in Dumfries. | WWI The authorities brought [[Frank Bernard Halford|Frank Halford]] back from France to develop the 160 h.p. [[William Beardmore and Co|Beardmore]] engine (which had been based on a water-cooled six-cylinder [[Austro-Daimler]] engine) with a view to designing a more powerful unit, which he did with [[Arrol-Johnston]] in Dumfries, where he worked with [[T. C. Pullinger]]. | ||
In the B.H.P. Halford departed from the accepted practice of using a single large inlet exhaust valve, instead using two small exhaust valves and a single large inlet valve per cylinder. | |||
1917 The outcome was the B.H.P. (Beardmore-Halford-Pullinger) engine — a 230 h.p. (170 kW) vertical six-in-line water-cooled engine embodying cast-iron cylinder heads, steel cylinder liners, and sheet-steel water jackets. | 1917 The outcome was the B.H.P. (Beardmore-Halford-Pullinger) engine — a 230 h.p. (170 kW) vertical six-in-line water-cooled engine embodying cast-iron cylinder heads, steel cylinder liners, and sheet-steel water jackets. | ||
This engine was further developed by [[Siddeley-Deasy]] for aircraft use | This engine was further developed by [[Siddeley-Deasy]] for aircraft use. They changed the cylinder heads and water jackets to aluminium and the name to [[Siddeley Puma|Puma]]. They made over 6,000 Pumas.<ref>Flight Archive [http://www.flightglobal.com/pdfarchive/view/1959/1959%20-%200380.html]</ref> | ||
== See Also == | == See Also == | ||
Latest revision as of 17:35, 12 September 2017
The B.H.P. engine
WWI The authorities brought Frank Halford back from France to develop the 160 h.p. Beardmore engine (which had been based on a water-cooled six-cylinder Austro-Daimler engine) with a view to designing a more powerful unit, which he did with Arrol-Johnston in Dumfries, where he worked with T. C. Pullinger.
In the B.H.P. Halford departed from the accepted practice of using a single large inlet exhaust valve, instead using two small exhaust valves and a single large inlet valve per cylinder.
1917 The outcome was the B.H.P. (Beardmore-Halford-Pullinger) engine — a 230 h.p. (170 kW) vertical six-in-line water-cooled engine embodying cast-iron cylinder heads, steel cylinder liners, and sheet-steel water jackets.
This engine was further developed by Siddeley-Deasy for aircraft use. They changed the cylinder heads and water jackets to aluminium and the name to Puma. They made over 6,000 Pumas.[1]