A captive screw spray nozzle comprising a screw for holding the spray nozzle on a support, the screw comprising a screw head engaging with a holding member, secured to the spray nozzle, and forming a stop for retaining the captive screw on the spray nozzle.

Methods and systems are provided for an oil gallery of a piston. In one example, a system for a piston comprising an internal oil gallery. The internal oil gallery comprises one or more of a funnel shaped inlet, a funnel shaped outlet, and a plurality of tongues extending along a circumference of the internal oil gallery.

A work machine in which an engine and a reserving unit configured to reserve lubricating oil to be supplied to the engine are connected by a lubricating oil channel, and the lubricating oil is circulated, wherein at least a part of the lubricating oil channel and at least a part of a working fluid channel for a working fluid to be supplied to a work unit of the work machine are arranged such that heat can be exchanged between the lubricating oil and the working fluid.

An oil-spray tube assembly includes a tube having an outer circumferential surface, an inner circumferential surface defining a hollow center, a closed distal end, an open proximal end defining an axially recessed annular seat, and an orifice extending between the inner and outer surfaces. A poppet valve has a radially extending flange and is received in the hollow center with the flange disposed on the annular seat. The valve defines an inlet, a cylindrical valve chamber in fluid communication with the inlet, an outlet exiting the valve chamber, and a valve seat between the inlet and the outlet. A ball is disposed within the valve chamber and is movable between a closed position in which the ball is seated on the valve seat to sever fluid communication between the inlet and the outlet and an open position in which the ball is spaced from the valve seat to place the inlet and outlet in fluid communication.

Systems, devices, and method are disclosed for differentially cooling an internal combustion engine. A cooling system includes a first cooling circuit configured to lower a temperature of a cooling fluid to a first temperature where the first cooling circuit is configured to dispense a first portion of the cooling fluid to cylinder walls and non-cylinder or non-combustion surfaces of the engine. The cooling system also includes a second cooling circuit configured to lower the temperature of a remaining or second portion of the cooling fluid to a second temperature that is lower than the first temperature where the second cooling circuit is configured to dispense the remaining portion of the cooling fluid to cylinder or combustion surfaces within one or more cylinders of the internal combustion engine.

A cooling system of an internal combustion engine system includes an engine cooling circuit for defining a flow path and direction for engine coolant fluid flowing through the internal combustion engine system. The cooling system also includes a heat exchanger assembly positioned along the engine cooling circuit. The heat exchanger assembly is structured to transfer heat from the engine coolant fluid to a working fluid and includes a shell defining an inner cavity, a core disposed within the inner cavity and structured to receive the working fluid, and a main flow path and a bypass flow path of the engine coolant fluid, the core comprising a baffle in the bypass flow path, the baffle including: a base portion coupled to an end of the core and a curved portion extending from the base portion such that the curved portion impedes a bypass flow of engine coolant fluid from continuing along the bypass flow path.

Described is a cooler having: a heat exchanger for dissipating heat from a medium, for example oil, a fan having a fan housing, a fan wheel and a motor, a control unit for controlling the motor, a sensor unit for detecting an operating parameter of the heat exchanger and/or of the fan, the sensor unit being connected to the control unit in order to set an operating state of the cooler, the fan housing having a recess in which the control unit is arranged together with the sensor unit.

A vehicle includes: an electric motor; and a temperature-control circuit through which a non-conductive temperature-control medium for temperature control for the electric motor circulates. The temperature-control circuit includes: a heat exchanger configured to exchange heat between the non-conductive temperature-control medium and a conductive temperature-control medium; and a pump driven in accordance with driving of the vehicle to circulate the non-conductive temperature-control medium. The temperature-control circuit further includes a liquid pressure holding unit configured to hold liquid pressure of the non-conductive temperature-control medium in the heat exchanger equal to or higher than a predetermined pressure.

A method for thermal management of a motor vehicle engine includes one or more of the following: determining a current lube oil temperature; determining a lube oil temperature for optimal friction; turning on piston cooling jets based on the current lube oil temperature and the lube oil temperature for optimal friction; and turning off the piston cooling jets.

A hybrid vehicle including an engine, a drive motor, a first oil pump, and a second oil pump is configured to, during forward travel, supply components to be cooled or lubricated with oil discharged from a discharge port of the first oil pump and a discharge port of the second oil pump via an oil passage, while the hybrid vehicle is configured to, during reverse travel, compensate for a driving force by supplying oil discharged from the discharge port of the second oil pump to the discharge port of the first oil pump via the oil passage to cause the first oil pump to operate as a hydraulic motor.