push rod

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push rod

[′pu̇sh ‚räd]
(mechanical engineering)
A rod, as in an internal combustion engine, which is actuated by the cam to open and close the valves.
References in periodicals archive ?
Lamborghini, a subsidiary of Volkswagen AG (Xetra: VW), has equipped its Aventador with an advanced pushrod suspension system.
While some view these engines' cam-in-block, pushrod architecture as antiquated compared to more mechanically efficient overhead-cam designs, GM prefers to think of them as elegantly simple.
The front brake pads were visible through the slots in the 12-in, wheels, which made it easy to determine when new ones were needed, and the carbureted pushrod motor--which produced a claimed 88 hp- was bog-simple.
It is a pushrod engine with four valves per cylinder driven by a single camshaft through hydraulic rollers, Compression ratio is 18.
For ongoing or planned projects currently tandem mass spectrometry ability pushrod technology for direct measurements (LIFDI / EI / CI) and the coupling with autosampler (also for all ionization) requires a current gas chromatograph.
The single' camshaft is located high in the block to optimize the pushrod angle--something the legendary 426 Hemi, with its severely canted intake valve, did without.
The profile is controlled hydraulically by adjusting the amount of actuator oil in the hydraulic pushrod.
This arrangement puts a single pair of cam lobes in the span between the bearings at either end, allowing the lifter bores to be aligned with the cylinder heed's splayed valves for zero pushrod angularity.
Tom is the father of the Vortec engines, and these engines with obsolete pushrod technology are taking on the competition and winning.
The set-up is reminiscent of the pushrod Mercedes-Benz Indy car V-8 developed with Ilmor and campaigned by Team Penske in the 1990s.
Q: GM is phasing out its premium V-6 (currently powering the Oldsmobile Intrigue) while perpetuating the pushrod 3800 and preparing to buy V-6s from Honda.