Various embodiments of a reverse thermostat for use in restricting hot water in a plumbing system from being delivered to cold water fixtures are disclosed.

A thermostatic valve includes a valve body, first and second elastic members, a valve seat assembly, a valve core, and a thermal actuator. The thermostatic valve includes six ports, four valve port portions each having a valve port, and a first cavity and a second cavity which are isolated from each other. One of the third port, the fourth port and the sixth port is in communication with the second cavity, and the other two of the third port, the fourth port and the sixth port are configured to be in communication with the second cavity through valve ports; and one of the first port, the second port and the fifth port is in communication with the first cavity, and the other two of the first port, the second port and the fifth port are configured to be in communication with the first cavity through valve ports.

The thermostat device includes a housing including a first flow inlet that receives a coolant from a radiator, a second flow inlet that receives a coolant through a bypass passage, and a flow outlet of coolant in which each coolant is mixed; a thermo-element that is accommodated in the housing and moves in an axial direction depending on a temperature of the coolant from the second flow inlet; a control valve that controls amount of the coolant introduced from the first flow inlet as the thermo-element moves; a valve seat that is formed at a tip portion of an annular protrusion formed to protrude in a moving axis direction of the thermo-element in the housing and with which the control valve is in contact in a valve-closed state; and an annular groove formed by an annular gap provided outside of the valve seat and continuous in a circumferential direction.

A thermostat device is provided that smoothens the flow of the coolant to keep the pressure loss small and can sufficiently secure the flow rate of the coolant from the radiator side to the engine side. A housing having a first inlet for introducing a coolant cooled by a radiator and a coolant outlet supplied to the internal combustion engine, a thermo-element accommodated in the housing that moves axially depending on the temperature of the coolant, a control valve that controls the amount of coolant introduced from the first inlet as the thermoelement moves in the axial direction, and a slope having an upward slope from the outlet side to the valve seat side inside the exit-side conduit extending from the valve seat in the housing, wherein the control valve is in contact with in the valve-closed state, toward the flow outlet of the coolant, are provided.

A thermostat device ensures a coolant amount from a bypass passage sufficiently and excellent temperature sensitivity to the coolant temperature. The thermo-operating unit is provided with a control valve for controlling an introduced coolant amount from a first flow inlet via a radiator, corresponding to the temperature of the coolant from a second flow inlet via a bypass passage. Within the housing are provided multiple guides, which are formed extending from the second flow inlet side toward a thermo-element, are arranged intermittently around the thermo-element, and support the thermo-element slidably movable in an axial direction and coolant rectifying protrusions arranged spaced apart from the thermo-element between the guides, wherein a detoured passage for the coolant, directed from the second flow inlet side toward an outflow port, is formed by forming gaps between the guides and the coolant rectifying protrusions.

Various disclosed embodiments include oil systems, electric motors, and vehicles. In an illustrative embodiment an electrical motor system includes an oil reservoir, a motor, and an oil delivery system. The oil reservoir is configured to hold oil therein. The oil delivery system includes a heat exchanger. The oil delivery system is configured to operate in a low-temperature mode, bypassing the heat exchanger, while the oil temperature is below a first predetermined temperature; operate in a high-temperature mode, directing oil traversing the oil delivery system through the heat exchanger while the oil temperature is above a second predetermined temperature; and operate in an intermediate-temperature mode, partially bypassing the heat exchanger while the oil temperature is between the first predetermined temperature and the second predetermined temperature.

A flood prevention system includes a first load, a second load, a third load, a fourth load, a first compressor, a first temperature sensor, a second temperature sensor, and a controller. The first, second, third, and fourth loads are configured to use a refrigerant to remove heat from a first, second, third, and fourth space, respectively, proximate to the first, second, third, and fourth load, respectively. The first compressor is configured to compress the refrigerant from the fourth load. The first temperature sensor is configured to detect a first temperature of the refrigerant from the first load, the second load, and the third load. The second temperature sensor is configured to detect a second temperature of the refrigerant from the first load, the second load, the third load, and the compressor. The controller is configured to trigger an alarm in response to certain conditions.

A thermostat device ensures a coolant amount from a bypass passage sufficiently and excellent temperature sensitivity to the coolant temperature. The thermo-operating unit is provided with a control valve for controlling an introduced coolant amount from a first flow inlet via a radiator, corresponding to the temperature of the coolant from a second flow inlet via a bypass passage. Within the housing are provided multiple guides, which are formed extending from the second flow inlet side toward a thermo-element, are arranged intermittently around the thermo-element, and support the thermo-element slidably movable in an axial direction and coolant rectifying protrusions arranged spaced apart from the thermo-element between the guides, wherein a detoured passage for the coolant, directed from the second flow inlet side toward an outflow port, is formed by forming gaps between the guides and the coolant rectifying protrusions.

A device and method of providing instruction to a patient regarding the dosing of insulin is provided.

The present disclosure provides thermostats and thermostat housings with a support frame that is linearly displaceable relative to an aperture of the thermostat, for modifying operational characteristics of the opening and closing of the aperture by a valve actuated via a thermal-actuator with an extendible pin configured to be pressed against the support frame for moving the valve to open and close the aperture.