The Trifor
I udnerstand that the push mower was invented in the 1800's, but I want to know who invented the gas-powered engine that we see in use in today's mowers.
Answer
The engine we see on lawn mowers today wasn't exactly invented. It evolved from motorcycle, marine and small stationary engines that have been in use since the beginning of the twentieth century. Mervyn Richardson didn't invent an engine, he built an engine powered rotary mower copied from a similar machine that was built by Lawrence Hall in 1948. Hall used a marine engine on his mower. Richardson's first machine was powered by a Villiers engine and Villiers started production of their small engines for other uses in 1911.
The engine we see on lawn mowers today wasn't exactly invented. It evolved from motorcycle, marine and small stationary engines that have been in use since the beginning of the twentieth century. Mervyn Richardson didn't invent an engine, he built an engine powered rotary mower copied from a similar machine that was built by Lawrence Hall in 1948. Hall used a marine engine on his mower. Richardson's first machine was powered by a Villiers engine and Villiers started production of their small engines for other uses in 1911.
Comparing engine size in lawn mowers?
Chocolate
In terms of power, gas consumption, or any other considerations, is the difference between a model with 149 cc engine versus another with 190 cc very significant?
The 149 cc is $200; the 190 cc is $240. (US dollars).
Answer
The size engine on a lawn mower is based on the blade length more than anything else. The most common 149cc mower engine is a Kohler Courage, an efficient over-head valve engine used on 20 or 21 inch mowers. It comes in 3.8 and 4.8 HP versions. The most common 190cc mower engine is a Briggs and Stratton Quantum. It is an older design that used to be rated at 6.5hp, and now is just rated at 6.75 ft-pounds of torque. Being larger it is more often used on 21 or 22 inch mowers.
The 190cc will use more fuel, but will also cut more lawn with each swath. Gas mileage on mowers is not usually an issue, but the OHV Kohler should be marginally more efficient. The main consideration is the maintenance you do. Keeping the air filter clean and changing the engine oil periodically will lengthen the life of either mower choice.
I hope this helps.
.
The size engine on a lawn mower is based on the blade length more than anything else. The most common 149cc mower engine is a Kohler Courage, an efficient over-head valve engine used on 20 or 21 inch mowers. It comes in 3.8 and 4.8 HP versions. The most common 190cc mower engine is a Briggs and Stratton Quantum. It is an older design that used to be rated at 6.5hp, and now is just rated at 6.75 ft-pounds of torque. Being larger it is more often used on 21 or 22 inch mowers.
The 190cc will use more fuel, but will also cut more lawn with each swath. Gas mileage on mowers is not usually an issue, but the OHV Kohler should be marginally more efficient. The main consideration is the maintenance you do. Keeping the air filter clean and changing the engine oil periodically will lengthen the life of either mower choice.
I hope this helps.
.
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