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A small engine is the general term for a wide range of small-displacement, low-powered internal combustion engines used to power lawn mowers, generators, concrete mixers and many other machines that require independent power sources. [1] These engines often have simple designs, for example an air-cooled single-cylinder petrol engine with a pull ...
Hydraulic tappet. A hydraulic tappet, also known as a hydraulic valve lifter or hydraulic lash adjuster, is a device for maintaining zero valve clearance in an internal combustion engine. Conventional solid valve lifters require regular adjusting to maintain a small clearance between the valve and its rocker or cam follower.
In internal combustion engines, the gudgeon pin (English, wrist pin or piston pin US English) connects the piston to the connecting rod, and provides a bearing for the connecting rod to pivot upon as the piston moves. [1] In very early engine designs, including those driven by steam, and many very large stationary or marine engines, the gudgeon ...
Ignition timing. Pressure in cylinder pattern in dependence on ignition timing: (a) - misfire, (b) too soon, (c) optimal, (d) too late. In a spark ignition internal combustion engine, ignition timing is the timing, relative to the current piston position and crankshaft angle, of the release of a spark in the combustion chamber near the end of ...
Head gasket (in dark gray with a red border) sitting on top of an inline-four engine block. When installed, the four large holes will align with the cylinders. In an internal combustion engine, a head gasket provides the seal between the engine block and cylinder head (s). Its purpose is to seal the combustion gases within the cylinders and to ...
Briggs & Stratton Corporation is an American manufacturer of small engines with headquarters in Wauwatosa, Wisconsin. Engine production averages 10 million units per year as of April 2015. [2] The company reports that it has 13 large facilities in the U.S. and eight more in Australia, Brazil, Canada, China, Mexico, and the Netherlands. The ...
Valvetrain. 1969 AMC V8 overhead valve engine. The rocker cover has been removed, so the pushrods, rocker arms, valve springs, and valves are visible. A valvetrain is a mechanical system that controls the operation of the intake and exhaust valves in an internal combustion engine. [1] The intake valves control the flow of air/fuel mixture (or ...
An opposed-piston engine is a piston engine in which each cylinder has a piston at both ends, and no cylinder head. Petrol and diesel opposed-piston engines have been used mostly in large-scale applications such as ships, military tanks, and factories. Current manufacturers of opposed-piston engines include Cummins, Achates Power and Fairbanks ...