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US 2021/0246815 A1Published application
A nozzle for cooling engine pistons
AssigneeVolvo Truck Corporation
InventorsNicolas GRANOTTIER, Catherine CUINIER
Life of this patent
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Abstract
The present invention relates to a cooling jet nozzle (10) for an engine piston. The nozzle (10) comprises a cooling stream pathway (14), in which the internal cross-sectional dimensions of the pathway vary along the length of the pathway; and a plunger (28) located within the cooling stream pathway to impinge a cooling feedstream received within the pathway to provide a cooling jet. The plunger (28) is axially moveable within the pathway to adjust the internal cross-sectional dimensions of the cooling jet.
Claims17
A cooling jet nozzle for an engine piston, in which the nozzle comprises:
- a cooling stream pathway, in which the internal cross-sectional dimensions of the pathway vary along the length of the pathway;
- and
- a plunger located within the cooling stream pathway to impinge a cooling feedstream received within the pathway to provide a cooling jet, characterized in that the plunger is axially moveable in order to adjust the internal cross-sectional dimensions of the cooling jet.
Dependencies are inferred from the claim text.