Air cooling arrangement for encapsulated vehicle engine
AssigneeAVL Gesellschaft fur Verbrennungskraftmaschinen und Messtechnik m.b.H. Prof.Dr.Dr.h.c. Hans List
InventorsKarl Kirchweger, Franz Knopf, Gerhard Thien
Life of this patent
Estimating the term…
Abstract
A water-cooled internal combustion engine powering the vehicle is mounted in an engine compartment comprising a sound-insulating capsule. Independent of and additionally to any possible blower ventilation of the capsule at least one separate inlet opening into the capsule is connected to an intake opening situated in an area which is exposed to dynamic pressure when the vehicle is in motion. The front cross-member may be provided with an intake opening open in the direction of motion as well as with a sound-absorbing lining, and the inflowing cooling air may be fed into the capsule via the adjacent longitudinal beams of the vehicle frame.
Claims11
A motor vehicle, comprising a frame and body components, an engine compartment, a water-cooled internal combustion engine mounted in said engine compartment to power the vehicle, encapsulating elements sealed against parts of said frame and said body components to form a completely enclosed sound-insulating capsule for said engine compartment, said capsule including sound-absorbing inlet and outlet openings for ventilation of said capsule, means for blower ventilating said capsule, said blower ventilating means comprising a blower and a first cooling air inlet passage connected thereto, said first cooling air inlet passage terminating in one of said inlet openings, another of said inlet openings being provided with a second cooling air inlet passage separate from said blower ventilating means and having an associated intake opening, said intake opening being located in one of said body components so as to be exposed to external dynamic pressure developing during movement of the vehicle.
Dependencies are inferred from the claim text.