US 12,000,326 B2
Engine system
Jamie Andrew Martin, Peterborough (GB)
Assigned to Perkins Engines Company Limited, Peterborough (GB)
Filed by Perkins Engines Company Limited, Peterborough (GB)
Filed on Jun. 20, 2023, as Appl. No. 18/211,921.
Claims priority of application No. 2209922 (GB), filed on Jul. 6, 2022.
Prior Publication US 2024/0011427 A1, Jan. 11, 2024
Int. Cl. F01P 11/02 (2006.01); F01P 5/10 (2006.01)
CPC F01P 11/0285 (2013.01) [F01P 5/10 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An engine system comprising:
an engine;
a cooling system comprising a cooling device, a coolant flow circuit fluidly connecting the engine and the cooling device and a pump for circulating coolant through the coolant flow circuit;
at least one engine vent line fluidly connected to the engine for venting air from the engine system and bypassing the coolant flow circuit, said at least one engine vent line having a hydraulic diameter and length selected to provide a predetermined engine head loss for the engine and a rate of flow of coolant in the at least one engine vent line at or below a maximum engine vent flow rate target during operation of the engine, said at least one engine vent line comprising a helical section in which a portion of the at least one engine vent line is formed into a helix.