Abstract: A fluid regulator includes a temperature-responsive bypass valve and a valve return spring. The bypass valve is arranged to cause fluid discharged from a fluid beater (such as a transmission) coupled to the fluid regulator to bypass a heat exchanger coupled to the fluid regulator until the fluid is hot and has a temperature in excess of a certain threshold level.

Abstract: A positive crankcase ventilation valve includes a flow restrictor movable in an orifice to vary flow of fumes from an engine crankcase to an intake manifold in a vehicle. The valve also includes a temperature-activated element for moving the flow restrictor in the orifice.

Abstract: A positive crankcase ventilation valve includes a flow restrictor movable in an orifice to vary flow of fumes from a crankcase to an intake manifold in a vehicle.

Abstract: A positive crankcase ventilation valve includes a flow restrictor movable in an orifice to vary flow of fumes from a crankcase to an intake manifold in a vehicle.

Abstract: A positive crankcase ventilation valve includes a flow restrictor movable in an orifice to vary flow of fumes from an engine crankcase to an intake manifold in a vehicle. The valve also includes a temperature-activated element for moving the flow restrictor in the orifice.

Abstract: A positive crankcase ventilation valve includes a flow restrictor movable in an orifice to vary flow of fumes from a crankcase to an intake manifold in a vehicle. The valve also includes a wax motor for moving the flow restrictor in the orifice.

Abstract: A thermostat apparatus is provided. The thermostat apparatus comprises a thermostat and a positioner for establishing different operating temperatures for thermostat.

Abstract: A thermostat comprises a valve and an electric valve actuator to move the valve against a valve seat. The thermostat comprises a wax motor responsive to temperature to move the valve away from the valve seat.

Abstract: A thermostatic control valve has an expansion composition held in a cavity thereof. The composition contains electrical conductor particles dispersed throughout an electrical isolator. The particles conduct electrical current through the isolator when the electrical isolator has a volumetric size that is less than a predetermined expanded volume. When the isolator expands to the predetermined expanded volume, the distance between the particles is increased to the extend that the electrical current cannot be conducted.

Abstract: An apparatus is provided for controlling the temperature of an engine based on a temperature control signal generated by an electronic control module of the engine. The electronic control module is coupled to a plurality of sensors configured to detect a plurality of engine component parameters and is configured to generate the temperature control signal related to an optimum engine temperature calculated using at least one output signal from at least one of the plurality of sensors. The apparatus includes a controller coupled to the electronic control module and to an engine temperature sensor. The controller generates an output signal based on the temperature control signal received from the electronic control module and on a signal proportional to the actual engine temperature received from the engine temperature sensor.

Abstract: A thermostat includes a valve movable from a closed position to an open position to permit fluid flow through a conduit in an engine. The valve is formed to include a vent opening defined by a wall. The thermostat also includes an actuator for selectively opening and closing the valve, an elastomeric material located on the valve covering the wall defining the vent opening, and a jiggle pin located in the vent opening.

Abstract: An apparatus is provided for controlling the temperature of an engine based on a temperature control signal generated by an electronic control module of the engine. The electronic control module is coupled to a plurality of sensors configured to detect a plurality of engine component parameters and is configured to generate the temperature control signal related to an optimum engine temperature calculated using at least one output signal from at least one of the plurality of sensors. The apparatus includes a controller coupled to the electronic control module and to an engine temperature sensor. The controller generates an output signal based on the temperature control signal received from the electronic control module and on a signal proportional to the actual engine temperature received from the engine temperature sensor.

Abstract: An apparatus is provided for filling an engine cooling system with coolant fluid and for controlling fluid flow through the cooling system using three dimensional weirs in response to changes of an engine cooling system temperature. The apparatus includes a fill housing having an inlet section, an outlet section, and a fill section configured to receive a cap thereon. The inlet section is formed to include a valve seat and a flange for coupling the fill housing to an engine. The apparatus also includes a thermostat and means for coupling the thermostat to the flange to hold the thermostat within the inlet section beneath an outer surface of the flange. The fill housing is formed to include a venturi portion located between the inlet section and the outlet section to provide a pressure drop in the fill housing as fluid flows through the fill housing. The venturi portion is located adjacent the fill section to subject the fill section to the pressure drop as fluid flows through the fill housing.

Abstract: A fail-safe thermostat includes a stationary valve member configured to be positioned between conduit components of the engine cooling system, a movable valve member for engaging the valve seat to block fluid flow into the conduit through the opening, an operating spring for biasing the movable valve member to a closed position against the valve seat of the stationary valve member, and a thermally responsive actuator for moving the movable valve member to an open position away from a valve seat when the ambient temperature exceeds a first predetermined temperature to permit fluid flow into the conduit. The apparatus further includes a bimetallic frame member coupled the stationary valve member. The frame member is configured to compress and hold the operating spring in engagement with the movable valve member.

Abstract: Valve seat structure for an automotive thermostatic fluid control valve device which is adapted to be positioned within a coolant fluid conduit system of an automotive engine. The valve seat structure has a rigid fluid flow control member which includes a cylindrical wall which forms a fluid flow passage. The rigid fluid flow control member also has an annular base which encompasses the cylindrical wall. An elastomeric sealing member resiliently encompasses the cylindrical wall. The elastomeric sealing member has an abutment portion and a clamping portion. Preferably, the abutment portion and the clamping portion are separated by a shoulder. A rigid clamping member has a clamping portion which is in engagement with the clamping portion of the elastomeric sealing member and is adapted to be clampingly engaged by a part of the coolant fluid conduit system. The rigid clamping member also has a shoulder portion which engages the shoulder of the elastomeric sealing member.

Abstract: A pressure compensated temperature switch for the protection of an internal combustion engine or the like. The switch unit includes a housing, a portion of which is positioned within a passage in the cooling system of the internal combustion engine. Within the housing is a pressure sensitive member. The pressure sensitive member senses both the temperature and the pressure of the coolant fluid in the coolant system of the internal combustion engine. A visual and/or audible alarm device which is connected to a switch unit of this invention, thus operates when temperature conditions exist within an engine which are harmful to the engine.

Abstract: Valve seat structure for an automotive thermostatic fluid control valve device. The valve seat structure comprises a rigid fluid flow control member which includes a cylindrical wall which forms a fluid flow passage and an annular base which encompasses the cylindrical wall. An elastomeric sealing member or engagement member resiliently encompasses the cylindrical wall and is clamped between two portions of a fluid conduit to position the valve seat structure within the fluid conduit. The elastomeric sealing member is also engageable by a movable valve member to control fluid flow through the fluid flow passage. The cylindrical wall extends beyond the elastomeric sealing member and protects the elastomeric sealing member against the forces of fluid flow.

Abstract: Fail-safe oil flow control apparatus of this invention includes a thermally responsive actuator for operation of a valve member to control oil flow through a heat exchanger in accordance with the oil temperature conditions which exist. The apparatus also includes resilient members which operate to control operation of the valve member in accordance with the oil pressure conditions which exist. The apparatus also includes a fusible body which melts and permits operation of the valve member when excessive temperatures exist in the apparatus.

Abstract: A thermally responsive fluid control valve device which is particularly adapted to be mounted in the coolant system of an automotive type engine. The thermally responsive fluid control valve device includes a frame member which consists of two sheet metal members attached together. One of the sheet metal members comprises a single-piece sheet metal member which includes a plurality of leg portions and a plurality of foot portions connected by a single ring portion, all of the portions being integral. The foot portions are adapted to engage a surface within the coolant system. The frame member also has another engagement surface, which with the foot portions, position the fluid control valve device within the coolant system.

Abstract: Fuel control mechanism, particularly adapted for control of diesel fuel flow to a diesel engine. The fuel control mechanism includes a housing provided with a plurality of flow passages therethrough. The fuel control mechanism includes a thermally responsive valve member which controls flow of fuel from a source thereof to the diesel engine and which controls the mixing of fuel from a source thereof with unused fuel which flows from the diesel engine. The fuel control mechanism also includes a valve member which controls flow of gas which flows from the diesel engine with the unused fuel.