compression ring

compression ring

[kəm′presh·ən ‚riŋ]
(mechanical engineering)
A ring located at the upper part of a piston to hold the burning fuel charge above the piston in the combustion chamber, thus preventing blowby.
References in periodicals archive ?
Al Thumama Stadium project manager Saoud Al Ansari said: "The roof columns and compression ring serve as an integral part for the roof's structure.
Al Thumama Stadium Project Manager, Saoud al Ansari, said: "The roof columns and compression ring serve as an integral part for the roof's structure.
Its 1 1/4-inch eyepiece port includes a brass compression ring and T-threads to directly attach cameras and other accessories.
Figures 2(a) and 2(b) show profilometric images of the cylinder liner and top compression ring surfaces, respectively, with surface parameters given in Table 1.
The piston top compression ring plays a vital role in an efficient engine operation as it prevents the combustion gas leakage and allows heat dissipation, but contributes towards mechanical friction.
The connection stays in place with the stainless steel compression ring that is fastened to the main pipe to create a one-piece lateral lining and sealed connection.
Magma said it has carried out a wide range of structural tests including four point bend, tension, compression, creep, collapse, burst, inter laminar sheer strength, compression ring, stress cycling, and impact.
An adhesive foam compression ring resists the elements.
The new shops and restaurants are arranged in a concentric 'cascade', with each level's storefronts set back 4 m from the maple balustrade as it steps up to a peristyle on the second floor which, in turn, supports the compression ring upon which the magnificent steel and glass dome rests.
The cable shield passes through a compression ring, permitting a circumferential connection.