four-stroke cycle

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four-stroke cycle

[¦fȯr ¦strōk ′sī·kəl]
(mechanical engineering)
An internal combustion engine cycle completed in four piston strokes; includes a suction stroke, compression stroke, expansion stroke, and exhaust stroke.

four-stroke cycle

four-stroke cycle
Induction stroke.
four-stroke cycle
Compression stroke.
four-stroke cycle
Power stroke.
four-stroke cycle
Exhaust stroke.
The sequence of operations by which a reciprocating engine converts heat energy into mechanical energy. During the induction strokes, the fuel-air mixture is inducted into the engine. During the compression stroke, the mixture is compressed. The power stroke follows, during which the mixture is ignited and the resultant rapid increase in pressure drives the piston downward. The exhaust stroke is last, during which the products of combustion are ejected.
References in periodicals archive ?
Mercury recently launched a 350-horsepower Verado supercharged 4-stroke engine weighing in at 668 pounds.
Arcturus has also converted the JUMP 15's ultra reliable Honda 4-stroke engine to fuel injection.
Construction: 2-cylinder 4-stroke engine, 750 V-style
Because of the higher air consumption in the analysed 2-stroke engines it is required to choose a more powerful scrubber than for a 4-stroke engine.
According to the companies, the unique aspects of the system are wide signal intercept frequency range, small operational footprint on the ground (1 or 2 full size pick-up trucks,) quiet operation (the T-20 utilizes a modified 4-stroke engine,) and the ability to interface with other payloads on the T-20, such as EO/IR and SAR.
He directed them to convert their 2-stroke into 4-stroke engine at the earliest otherwise stern action would be taken in this regard.
The LT series of tampers are suitable for applications on both granular and cohesive soils, and features a low-emission, low-noise Honda 4-stroke engine.
With the DTV Shredder, the outdoors becomes the personal playground--the two aggressive tank-treads, skateboard trucks and powerful 4-stroke engine make it capable of travelling on snow, sand, trails and even mountainsides at high speeds.
Under the hood is a powerful 695cc, 4-stroke engine.
Hoping to increase its market share, Suzuki launched its Suzuki Thunder 125 cc with 4-stroke engine designed to challenge Honda GL and Yamaha RX King.
Equipped with an air-cooled 4-stroke engine and featuring good fuel economy, the Wave is priced at 4,498 yuan (around $540), an affordable price made possible by low-cost local procurement, Honda said in a press release.
The all-new Honda VersAttach System offers two powerhead models, the UMC425, powered by a Honda GX25 Mini 4-Stroke engine, and the UMC435, powered by a GX35 Mini 4-Stroke engine.