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Difference between revisions of "Hildebrand and Wolfmüller"
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==Mechanical Details== | ==Mechanical Details== | ||
The motorcycle featured a [[water cooling|water-cooled]] engine (the coolant tank/radiator of which is prominent over and around the rear wheel) mounted in a purpose-designed tubular frame. The rear wheel was directly driven from the [[connecting rod]]s (a similar arrangement to that of steam locomotives). There was no [[flywheel]] other than the rear wheel, and it needed heavy rubber bands to provide the return impulse.[[Image:1894 Hildebrand & | The motorcycle featured a [[water cooling|water-cooled]] engine (the coolant tank/radiator of which is prominent over and around the rear wheel) mounted in a purpose-designed tubular frame. The rear wheel was directly driven from the [[connecting rod]]s (a similar arrangement to that of steam locomotives). There was no [[flywheel]] other than the rear wheel, and it needed heavy rubber bands to provide the return impulse.[[Image:1894 Hildebrand & Wolfmuller diagram.png|thumb|left|Diagram of 1894 Hildebrand & Wolfmüller.]] | ||
The Hildebrand & Wolfmüller patent of 20 January 1894, No. 78553 describes a {{convert|1489|cc|cuin|abbr=on}} [[Straight-two engine|two-cylinder]], [[four-stroke engine]], with a bore and stroke of 90x117mm. It produced 1.9kW @ 240 rpm<ref name=Walker1998/> propelling a weight of 50kg<ref name=Page1924/> up to a maximum speed of 28mph<ref name=Walker1998/>. | The Hildebrand & Wolfmüller patent of 20 January 1894, No. 78553 describes a {{convert|1489|cc|cuin|abbr=on}} [[Straight-two engine|two-cylinder]], [[four-stroke engine]], with a bore and stroke of 90x117mm. It produced 1.9kW @ 240 rpm<ref name=Walker1998/> propelling a weight of 50kg<ref name=Page1924/> up to a maximum speed of 28mph<ref name=Walker1998/>. | ||