US 12,215,618 B2
Filters for cooling apparatus
Wing Ngai Wong, Peterborough (GB); and Siddharth Subhash Gharpure, Peterborough (GB)
Assigned to Perkins Engines Company Limited, Peterborough (GB)
Filed by Perkins Engines Company Limited, Peterborough (GB)
Filed on Feb. 9, 2024, as Appl. No. 18/437,940.
Claims priority of application No. 2301889 (GB), filed on Feb. 10, 2023.
Prior Publication US 2024/0271558 A1, Aug. 15, 2024
Int. Cl. F01P 11/02 (2006.01); B01D 29/11 (2006.01); B01D 35/027 (2006.01); F01N 3/20 (2006.01); F01P 7/14 (2006.01); F01P 11/06 (2006.01)
CPC F01P 11/02 (2013.01) [B01D 29/114 (2013.01); B01D 35/027 (2013.01); F01N 3/2066 (2013.01); F01P 7/14 (2013.01); F01P 11/06 (2013.01); F01N 2610/02 (2013.01); F01N 2610/1406 (2013.01); F01P 2007/146 (2013.01); F01P 2011/061 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A cooling apparatus for an engine comprising:
a) a coolant reservoir comprising a coolant line outlet port;
b) a tank for holding an aqueous urea solution for injection into an exhaust system of the engine;
c) a coolant line for transferring a coolant fluid discharged from the coolant reservoir via the coolant line outlet port to the tank to enable, in use, heat exchange between the coolant fluid and the aqueous urea solution contained in the tank;
d) a coolant control valve located on the coolant line for controlling flow of coolant fluid along the coolant line to the tank; and
e) a filter for filtering the coolant fluid being discharged via the coolant line outlet port;
wherein the filter comprises a filtering portion that is located within an interior of the coolant reservoir so that the coolant fluid is filtered within the coolant reservoir before the coolant fluid enters the coolant line; and
wherein the coolant reservoir is a portion of a cylinder head and the filtering portion is located within an interior of the cylinder head.