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Cooled Air Increases Engine Output

27th November 1959
Page 37
Page 37, 27th November 1959 — Cooled Air Increases Engine Output
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By cooling the intake air of a turbocharged 9f-litre oil engine, its torque output was raised by 23 per cent., and maximum torque occurred at an engine speed 10 per cent. lower than before. Mr. E. Kellett, C.A.V., Ltd., gave these facts to the Institute of Road Transport Engineers in London last week.

The cooler was 1 ft. 6 in. square and 7 in. deep, and incorporated a I h.p. fan. With the turbocharger set at a pressure ratio of 2 to 1, a cooler could increase maximum power by 70 per cent. compared with a normally aspirated engine.

Properly matched turbochargers could reduce fuel consumption by 7-17 per cent. A 5-per-cent. saving would enable the cost, of a turbocharger installation to be recouped in a 'year with a vehicle covering 1,000 miles a week.

By varying the degrees of pressure charging, engine manufacturers, said Mr. Kellett, could now offer a basic unit having a wide range of outputs. An extension of this trend would be made possible by cooling intake air, but this practice had to be proved acceptable.

WARNING TO CO-OPS

r0-OPERATIVE societies which con

template entry into coach operation have been warned of the many difficulties involved by Mr. H. Woolley, transport manager, Birmingham Co-operative Society. He was speaking at the annual school of the Scottish Co-operative Transport Association at Bridge of Allan last week.

Mr. Woolley referred to the "near impossibility" of obtaining licences, declining numbers of coach trippers and the saturation of vehicles for available traffic. He also mentioned the large amount of capital involved.

FORD USER FOR 34 YEARS

riA 34-YEAR connection between Mr. Stanley Robson, managing director of Robson's Border Transport, Ltd., and Ford was highlighted yesterday when Mr. Harold Mortirnore, executive assistant sales) to the managing director of the Ford Motor Co., Ltd., officially opened the new vehicle showrooms and offices of county Garage Co., Ltd., main Ford iealers, at Carlisle.

On display in the new showroom was Model T Ford standing alongside a new Fhames Trades' shortly to be delivered to Vir. Robson. He started business as a taulier in 1925 with a Model T, and his :ompany now have about 100 vehicles, )f which 34 are Thames.

APPEAL POSTPONED

A N appeal by A. L. Griffiths, Caemarvons, which was lue to be heard by the Transport "ribunal in London last week was postioned to a date to be fixed in 1960. Respondents to the appeal, which is gainst a decision of the North Western .icensing Authority, are Williams Transort Services, Ltd., Beddgelert.