Benz motorwagen

benz-patent motorwagen 1886-1893
benz-patent motorwagen 1886-18The Benz Patent-Motorwagen ("patent motorcar"), built-in 1885, is widely regarded as the world's first production automobile,[1] that is, a vehicle designed to be propelled by an internal combustion engine. The original cost of the vehicle in 1885 was 600 imperial German marks,[2] approximately 150 US dollars (equivalent to $4,268 in 2019). The vehicle was awarded the German patent number 37435, for which Karl Benz applied on 29 January 1886. Following official procedures, the date of the application became the patent date for the invention once the patent was granted, which occurred in November of that year.

Benz's wife, Bertha, financed the development process.[3]

Benz unveiled his invention to the public on 3 July 1886, on the Ringstrasse in Mannheim.

Engine
=== The first Motorwagen used the Benz 954 cc single-cylinder four-stroke engine with trembler coil ignition.[4] This new engine produced 500 watts (2⁄3 hp) at 250 rpm in the Patent-Motorwagen, although later tests by the University of Mannheim showed it to be capable of 670 W (0.9 hp) at 400 rpm. It was an extremely light engine for the time, weighing about 100 kg (220 lb). Although its open crankcase and drip oiling system would be alien to a modern mechanic, its use of a pushrod-operated poppet valve for exhaust would be quite familiar. ===