connecting rod

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connecting rod

[kə′nekt·iŋ ‚räd]
(mechanical engineering)
Any straight link that transmits motion or power from one linkage to another within a mechanism, especially linear to rotary motion, as in a reciprocating engine or compressor.

Connecting Rod


a link in a plane mechanism that is connected to other moving links by means of rotating kinematic pairs and that describes a complex two-dimensional motion.

Connecting rods are an important component in widely used crank-slide mechanisms, which convert the reciprocal motion of a slide (the piston) into the rotary motion of a crank (the crankshaft), or vice versa. In piston engines, compressors, and pumps, the connecting rod generally has an H-shaped cross section; the end connected to the piston (the small, or piston end) is not detachable, and the big end, connected to the crankshaft, is demountable to allow assembly of the mechanism.

In forging and press equipment, the connecting rod end is sometimes of a special design that allows acceptance of high loads in a single direction; connecting rods of both constant and variable length are also used to control the position of a slide. The length of the connecting rod may be varied by means of a rod, the threaded end of which is screwed into the body of the connecting rod and the other (spherical) end of which forms a spherical kinematic pair with the slide.


connecting rod

The rod connecting the piston and transmitting power to the crankshaft of a reciprocating engine.
References in periodicals archive ?
Continually expanding for over 10 years, we are now engaged in connecting rods, crankshafts, turbochargers, coilovers, intake & exhaust manifolds, camber plates, ignition coils, etc.
Fracture splitting is an alternative processing technique with low cost and high quality for production of connecting rods with the recent introduction of new splittable steels [3].
The model demonstrates that the parallel connecting rods can rotate without overlapping.
PM connecting rods can be replaced by fracture splitable steel forged connecting rods with an expected weight reduction of about higher than existing connecting rod, with similar or better fatigue behavior.
Ever since, Carrillo Industries has been designing and manufacturing the most durable, long-lasting connecting rods in the industry.
Total Investment : US$ 98 million Location : Nanhai District, Foshan City, Guangdong Province (30km west of Guangzhou) Employment: Approximately 500 associates (when new plant becomes operational) Start of Production: Spring 2007 Production: Transmissions (AT/MT), drive shafts, crank shafts, connecting rods Annual Capacity: 240,000 units (transmission)
The foundry maintains 120 different part numbers, including 2-lb connecting rods (20,000/day), 4-lb stator shafts (9000/day) and 17-lb power steering housings (5000/day).
Connecting rods manufactured at Kidderminster will go into a new family of petrol engines manufactured at Opel's Szentgotthard plant in Hungary.
The specification for this range includes double-sealed aseptic connections with a sterile fluid barrier on all joints to atmosphere, product joints with mating connections to suit either DIN or ISO standard tube, titanium flexible connecting rods, and tandem double mechanical seals.
Less pricey but just as race-worn-beat-up-chic are blown main caps, pistons and connecting rods right off Hofmann's engine block ($59.
An acoustic compressor, for instance, eliminates the need for moving parts, such as pistons, connecting rods, crankshafts, and bearings, and thus for lubricating oil, he notes.
5:1); iridium tipped spark plugs for improved combustion characteristics; and a revised cam shaft profile, reinforced connecting rods and 8-counterweight crankshaft to achieve a higher redline limit of 6,800 rpm.