US 11,987,130 B2
Working machine
Matthew James Clowes, Uttoxeter (GB); Neil Beloe, Uttoxeter (GB); and Alex Kay, Uttoxeter (GB)
Assigned to J.C. BAMFORD EXCAVATORS LIMITED, Uttoxeter (GB)
Filed by J.C. BAMFORD EXCAVATORS LIMITED, Uttoxeter (GB)
Filed on Jul. 23, 2020, as Appl. No. 16/937,571.
Claims priority of application No. 1910496 (GB), filed on Jul. 23, 2019.
Prior Publication US 2021/0023950 A1, Jan. 28, 2021
Int. Cl. B60L 1/00 (2006.01); B60H 1/00 (2006.01); B60H 1/03 (2006.01); B60H 1/22 (2006.01); B60H 1/32 (2006.01); B60L 50/60 (2019.01); E02F 9/20 (2006.01); E02F 9/22 (2006.01); F15B 21/0423 (2019.01); F15B 21/0427 (2019.01); F15B 21/04 (2019.01)
CPC B60L 1/003 (2013.01) [B60H 1/00007 (2013.01); B60H 1/00278 (2013.01); B60H 1/00378 (2013.01); B60H 1/00392 (2013.01); B60H 1/0075 (2013.01); B60H 1/03 (2013.01); B60H 1/2218 (2013.01); B60H 1/2221 (2013.01); B60H 1/3227 (2013.01); B60L 50/60 (2019.02); E02F 9/207 (2013.01); E02F 9/2075 (2013.01); E02F 9/2095 (2013.01); E02F 9/226 (2013.01); E02F 9/2278 (2013.01); F15B 21/0423 (2019.01); F15B 21/0427 (2019.01); B60Y 2200/41 (2013.01); F15B 21/04 (2013.01); Y02T 10/70 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A working machine comprising;
a hydraulic fluid circuit arranged to provide hydraulic fluid to one or more hydraulic actuators to perform a working operation;
a ground engaging propulsion structure;
an electrical energy storage device configured to provide, electrical energy to an electric motor to provide, at least in part, tractive power to the ground engaging propulsion structure and power to a hydraulic pump to provide pressurised hydraulic fluid to displace the or each hydraulic actuator;
an operator structure;
an operator structure heater arranged to supply heat energy to selectively warm the operator structure and an operator structure cooler arranged to remove heat energy to selectively cool the operator structure;
a heat exchanger arranged to selectively supply and remove heat energy to/from the hydraulic fluid circuit; and
a thermal management system connecting the heat exchanger to the operator structure heater to transfer heat from the hydraulic fluid to the operator structure heater; and
wherein the thermal management system is configured to preheat at least one or both of the operator structure and the hydraulic fluid to a target temperature prior to operation of the working machine.