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Later that year the Kiekhaefer Mercury company designed a new inline 6-cylinder, 60 cubic inch, 60 hp (45 kW) engine named "Mark 75". Like its 2- and 4-cylinder brethren, the Mark 75 featured internal reed valves. The reed valve blocks served as intermediate main bearings.
A stroke is the action of a piston travelling the full length of its cylinder.In a two-stroke engine, one of the two strokes combines primarily the intake stroke and the combustion stroke, while the other stroke primarily combines the compression stroke and the exhaust stroke, though technically since both ports are exposed during both the combustion and compression strokes, some reversion ...
A Cox Babe Bee 0.049 in 3 (0.80 cm 3) reed valve engine, disassembled, uses glow-plug ignition. Its mass is 64 g. The reed valve is a simple but highly effective form of check valve commonly fitted in the intake tract of the piston-controlled port. It allows asymmetric intake of the fuel charge, improving power and economy, while widening the ...
The Duratec 2.5 L aka Mondeo V6 not the four cylinder (L5VE with joint Mazda 2.5) DOHC 24 valve engine had 170 hp (127 kW) at 6,250 rpm and 165 lb⋅ft (224 N⋅m) of torque at 4250 rpm. Used in the Ford Mondeo Mk 3 and last generation Ford/Mercury Cougar (1999-2002). The Displacement of the 2.5 L VE was decreased from 2.5 to 2.5 L (2,544 to ...
The Swedish motorcycle company Husqvarna produced a two-stroke, 500 cc displacement single cylinder engine with a reed-valve controlled intake, one of the biggest in using this arrangement. Reed valves in two-stroke engines have been placed in the intake ports and also in controlling the intake to the crankshaft space.
Leaf valves are commonly mounted in the intake port of most 2-stroke motorcycle engines. When the piston moves up in the cylinder, the valve opens and allows air and fuel to pass through the intake port and into the carburetor. When the piston moves down, the valve closes and the compressed air in the cylinder is forced out through the exhaust ...
Produced from 1958 through 1960, it was only used in Mercury vehicles. It used a 4.30 in × 3.30 in (109.2 mm × 83.8 mm) bore and stroke. Output began at 312 or 330 hp (233 or 246 kW), both with a four-barrel carburetor. The 322 hp (240 kW) was the only output for 1959, and power dropped to 280 hp (209 kW) for the final year.
A rotary valve in the form of a flat disc, also known as a disc valve, is used in two-stroke motorcycle engines, where the arrangement helps to prevent reverse flow back into the intake port during the compression stroke. Austrian engine manufacturer Rotax used rotary intake valves in their now out-of-production 64 hp (48 kW) Rotax 532 two ...
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