A hydraulic fluid pressure amplifier system includes a boost cylinder assembly, an energy storage device in fluid communication with the boost cylinder assembly, and a working cylinder assembly. The boost cylinder assembly is configured to selectively receive a plunger member into a boost cylinder, wherein movement of the plunger member received in the boost cylinder compresses a charge fluid within a blind side volume of the boost cylinder from a first fluid pressure to an amplified fluid pressure greater than the first pressure. The working cylinder assembly is selectively operable responsive to receiving a source hydraulic fluid having a nominal fluid pressure less than the amplified fluid pressure for effecting the movement of the plunger member into the boost cylinder. The energy storage device is operable to selectively receive and store a portion of the charge fluid compressed to the amplified fluid pressure.

A method for depositing zinc on the surfaces of a coolant loop of a nuclear power plant includes: providing within a portion of the coolant loop a treatment solution comprising zinc and optionally one or more noble metals and/or reducing agent(s); allowing the treatment solution to remain in the portion for a treatment period; and removing the treatment solution from the portion. According to various embodiments, an average temperature of the treatment solution over the course of the treatment period is less than 150° C. or 100° C. According to various embodiments, an instantaneous temperature of the treatment solution remains below 150° C. or 100° C. throughout the treatment period. The zinc deposition treatment may be applied (1) before the plant is first put into power-generating operation or (2) during an outage following power-generating operation and optionally following a chemical decontamination to remove any oxides formed on surfaces of a coolant loop during prior power operation period(s).

A vehicle heat transfer system includes a flow through heat exchanger, a surface heat exchanger, at least a first vehicle component, and a controller that is operable to selectively transfer heat to or from the first vehicle component with either or both of the flow through heat exchanger and the surface heat exchanger based on one or more operating conditions. In a further aspect, a vehicle heat transfer system includes, a vehicle component positioned on a vehicle that is heated or cooled by a fluid, and a surface heat exchanger positioned on the vehicle, the surface heat exchanger having an inlet that receives the fluid used to heat or cool the vehicle component, an outlet that returns the fluid to heat or cool the vehicle component, and a closed fluid path extending between the inlet and the outlet.

A vehicle heat transfer system includes a flow through heat exchanger, a surface heat exchanger, at least a first vehicle component, and a controller that is operable to selectively transfer heat to or from the first vehicle component with either or both of the flow through heat exchanger and the surface heat exchanger based on one or more operating conditions. In a further aspect, a vehicle heat transfer system includes, a vehicle component positioned on a vehicle that is heated or cooled by a fluid, and a surface heat exchanger positioned on the vehicle, the surface heat exchanger having an inlet that receives the fluid used to heat or cool the vehicle component, an outlet that returns the fluid to heat or cool the vehicle component, and a closed fluid path extending between the inlet and the outlet.

Thermostatic valve including a housing; a sleeve for regulating the circulation of a fluid in the housing, movable along its axis; a thermostatic element, the moving part of which is movable along the axis relative to its stationary part resulting from an expansion of the thermodilatable material of this element so as to move the sleeve; a compression spring for returning the stationary and moving parts toward one another; and a bracket supporting the spring, which supports a decompression thrust produced by the spring and is provided with both fasteners for fastening to a bearing portion of the housing transverse to the axis, these fasteners cooperating in a form-fitting manner with the bearing portion so as to be attached with the bearing portion along the axis resulting from a decompression thrust produced by the spring, and locking for locking the bracket in position while axially abutting against the bearing portion.

A cooling system for a vehicle may include a cooling water temperature sensor, a cooling circulation fluid passage including first, second and third fluid passages, wherein the cooling water exhausted from the engine may be branched into the first fluid passage provided with a heater core, the second fluid passage provided with a radiator, and the third fluid passage provided with an exhaust heat recovery apparatus, a fluid flow adjusting valve provided on a point at which the cooling water passing through the cooling water temperature sensor may be branched into the first fluid passage to the third fluid passage to adjust a flow of the cooling water, and a controlling part controlling the first fluid passage to the third fluid passage to be selectively opened or closed by operating the fluid flow adjusting valve depending on the temperature of the cooling water, in a heating mode and a non-heating mode.

A cooling system for a vehicle may include a cooling water temperature sensor, a cooling circulation fluid passage including first, second and third fluid passages, wherein the cooling water exhausted from the engine may be branched into the first fluid passage provided with a heater core, the second fluid passage provided with a radiator, and the third fluid passage provided with an exhaust heat recovery apparatus, a fluid flow adjusting valve provided on a point at which the cooling water passing through the cooling water temperature sensor may be branched into the first fluid passage to the third fluid passage to adjust a flow of the cooling water, and a controlling part controlling the first fluid passage to the third fluid passage to be selectively opened or closed by operating the fluid flow adjusting valve depending on the temperature of the cooling water, in a heating mode and a non-heating mode.

Methods and systems are providing for improving engine coolant level estimation to reduce engine overheating. The level of fluid in a coolant overflow reservoir is inferred based on the fluid level in a hollow vertical standpipe fluidically coupled to the reservoir at top and bottom locations. An ultrasonic sensor positioned in a recess at the bottom of the vertical standpipe transmits signals intermittently, receives their echoes upon reflection from the coolant surface, and estimates the fluid level in the standpipe based on echo times.

A control device for an unmanned vehicle includes a temperature data acquisition unit acquiring temperature data of hydraulic oil supplied to a first hydraulic actuator actuating a steering device of the unmanned vehicle, and a command output unit outputting a change command for changing a travel parameter of the unmanned vehicle based on the temperature data.

A waste heat accumulator/distributor system for use in a vehicle. The system includes an engine coolant loop directing engine coolant through a power plant, a powertrain electronics coolant loop directing electronics coolant through a powertrain electronics system; and a transmission fluid loop directing transmission fluid through a transmission. The system includes a multi-fluid heat exchanger including an engine coolant inlet receiving the engine coolant from the engine coolant loop, an electronics coolant inlet receiving the electronics coolant from the powertrain electronic coolant loop, and a transmission fluid inlet receiving the transmission fluid from the transmission fluid loop; a first valve controllable to cause engine coolant to flow into the engine coolant inlet or to bypass the engine coolant inlet; and a second valve controllable to cause electronics coolant to flow into the electronics coolant inlet or to bypass the electronics coolant inlet.