Does anybody know what the "oil dampener" that is located in the oil line between the engine (4.5 and possibly others) and the oil cooler (part #116-180-1294) does?

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Berfinroy in CT
Present vehicles:
1973 300 SEL 4.5
1959 Rolls Royce Silver Cloud I
1959 Ford Thunderbird convertible/430
Past vehicles;
1958 Bentley S 1
1976 ex-Max Hoffman 6.9
1970 300SEL 2.8
1958 Jaguar MK IX
1961 Jaguar MK IX
1963 Jaguar E-type factory special roadster
1948 Plymouth woody
1955 Morgan plus 4
1966 Shelby GT350H Mustang

It reduces fluctuations in oil pressure/flow caused by the changing engine speeds.