Expansion tank for a motor vehicle cooling system

    公开(公告)号:US10690041B2

    公开(公告)日:2020-06-23

    申请号:US15617624

    申请日:2017-06-08

    Abstract: An expansion tank for a cooling system of a motor vehicle has an inlet mouth and is provided with a shell in plastic material having a wall which defines a cavity for containing a coolant liquid; the shell has, in addition, a projecting collar, at the inlet mouth, and a first inner tubular wall, which protrudes downwards into the cavity and defines a passage with a lower outlet opening, to make the coolant liquid flow into the cavity; the shell has, in addition, a second tubular wall, projecting upwards into the cavity and defining a compartment which is vertically aligned with the passage and has an upper overflow opening vertically arranged at a height that is equal to or greater than that of the outlet opening.

    EXPANSION TANK FOR A MOTOR VEHICLE COOLING SYSTEM

    公开(公告)号:US20170356328A1

    公开(公告)日:2017-12-14

    申请号:US15617624

    申请日:2017-06-08

    Abstract: An expansion tank for a cooling system of a motor vehicle has an inlet mouth and is provided with a shell in plastic material having a wall which defines a cavity for containing a coolant liquid; the shell has, in addition, a projecting collar, at the inlet mouth, and a first inner tubular wall, which protrudes downwards into the cavity and defines a passage with a lower outlet opening, to make the coolant liquid flow into the cavity; the shell has, in addition, a second tubular wall, projecting upwards into the cavity and defining a compartment which is vertically aligned with the passage and has an upper overflow opening vertically arranged at a height that is equal to or greater than that of the outlet opening.

    METHOD OF MAKING EXPANSION TANKS FOR COOLING SYSTEMS AND/OR ENGINES

    公开(公告)号:US20190249592A1

    公开(公告)日:2019-08-15

    申请号:US16391863

    申请日:2019-04-23

    CPC classification number: F01P11/029 B60K11/02 F01P3/20 F01P11/028

    Abstract: A manufacturing process for making different expansion tanks for different cooling systems and/or for different engines, each of said expansion tanks having an inlet mouth and comprising: a plastic shell comprising a) a wall defining a cavity for containing a coolant liquid; and b) at least one collar at said inlet mouth, said collar being outwardly projecting from said wall. Each of said expansion tanks further comprising a tubular insert engaging said collar and defining said inlet mouth; said tubular insert being made of plastic material colored in mass; and retention means which hold said tubular insert relative to said collar. The process comprising making shells identical in shape and size, for all of said expansion tanks; and making inserts that differ in the value of their inner diameter; each inner diameter value being determined at the design stage depending on the type of cooling system and/or the type of engine.

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