Abstract: In connection with a thermostatic valve, in particular for regulating a coolant supply to a transmission fluid cooler, two valves are provided, which are respectively adjustable by means of thermostatic operating elements. Two thermostatic operating elements are associated with a valve and engage a valve element, which is adjustable for opening a second valve, in the same direction.

Abstract: A thermostatic valve assembly includes three housing components (16, 18, 20) containing two interconnected chambers (64, 78). A first thermally responsive valve unit (68) is disposed in the chamber (64) while a second thermally responsive valve element (98) is disposed in the chamber (78). Both the chambers (64) and (78) have inlets (60, 110) and the chamber (64) has an outlet (66). The valve may assume configurations allowing a minimal flow (FIG. 2), a large volume warm up flow (FIG. 3), a mixed flow regimen (FIG. 4) and a pure cooling flow regimen (FIG. 5).

Abstract: A thermostatic subcooling control valve is disclosed which is capable of enhancing evaporative power of an evaporator in a refrigerating cycle to thereby improve refrigerating capacity of the refrigerating cycle and which is capable of ensuring safety from danger of a high pressure refrigerant and which is capable of attaining improved precision and improved reliability. The thermostatic subcooling control valve according to the present invention comprises a valve body having a pressure-operative portion and a valving element operating portion for sensing temperature and pressure of a refrigerant to operate, and the valve body is contained in a casing provided with a refrigerant inlet connecting portion and a refrigerant outlet connecting portion. Preferably, the casing comprises an entrance casing member having the inlet connecting portion and an exit casing member having the outlet connecting portion, and the casing members are fixedly joined together to thereby contain the valve body.

Abstract: A fluid temperature control apparatus includes a housing with first and second housing portions, and a partition for isolating the first and second housing portions. The first housing portion has a first fluid inlet connected to a hot fluid source, and a first fluid outlet. The second housing portion has a second fluid inlet connected to a cold fluid source, and a second fluid outlet connected to the first fluid inlet. A valve assembly includes a tubular valve seat disposed in the second housing portion to define a piston receiving space with an open end that is spaced from the partition and that is communicated with the second fluid outlet. A piston has a head portion extending slidably into the piston receiving space, and a restricted actuated portion extending out of the open end of the valve seat. The valve seat has a radial valve opening communicated with the second fluid inlet.

Abstract: The invention is a thermostat for a cooling system comprising a valve member configured to be positioned in a valve port in the cooling system. The valve member is configured to impede or prevent a flow of a thermal conducting medium into or out of the valve port. A thermally responsive actuator is coupled to the valve member to move the valve member into and out of a position that impedes or prohibits the flow of the thermal conducting medium into or out of the valve port. The thermally responsive actuator comprises at least one flexible plate for applying a thermally generated motion to the valve member.

Abstract: An engine coolant thermostat of the type having a thermally expansible wax power element acting against a diaphragm and piston to move a poppet. The poppet has a retainer attached thereto which has portions sliding in slots on the thermostat housing; and these portions contact the ends of the slots to limit piston travel in the event of exposure to overtemperature and prevent failure of the thermostat.

Abstract: A thermostatic valve for controlling fluid flow from a high-temperature source to a low-temperature source. The thermostatic valve includes a first end which, during use of the valve, is exposed to fluid from the high-temperature source and a second end which, during use of the valve, is exposed to fluid from the low-temperature source. The valve also includes a valve seat member having a valve seat and a valve member having two ends and an exterior closure surface registrable with the valve seat. The valve member has a shape, except at its two ends, with only curves of greater than about 150.degree., so that fluid flowing past the valve member is caused to make only turns of less than about 30.degree.. The thermostatic valve is useful for controlling coolant flow from an internal combustion engine block to a radiator. The valve member may have a shape formed of continuously-varying parabolic curves.

Abstract: A thermally-actuated steam trap comprises a valve casing having an inlet, a valve chest and an outlet. A valve seat member with a discharge passage is disposed between the valve chest and the outlet. A temperature control element with an expansible medium sealed therein is disposed within the valve chest, and consists of two disk-shaped wall members, at least one wave-like diaphragm member provided between the wall members, and a valve member secured to the diaphragm member. Displacement of the diaphragm accompanying the expansion and contraction of the expansible medium causes the valve member to come into and out of a seating engagement with the valve seat member to close and open the discharge passage. In order to avoid a state of producing a permanent deformation of the diaphragm of low elastic material and not to be affected by repeated use of the diaphragm, the upper surface of the lower disk-shaped wall member has a curved region corresponding to the wave form of the diaphragm member.

Abstract: A new temperature-sensitive valve for handling liquids includes a housing having a valve seat and a valving member mounted for movement from a flow-permitting first position spaced from the seat to a flow-blocking second position against the seat. A latching mechanism is coupled to the valving member for retaining such member in the first position when the temperature of the liquid is below a shutoff temperature. A temperature-sensitive device is mounted in the valve body and has an actuator coupled to the latching mechanism. The valve body has a chamber containing the sensing portion of the temperature-sensitive device and also has flow apertures positioned so that when the valve is open, liquid flows across and is in contact with the sensing portion for excellent heat transfer and quick response. The latching mechanism is released and the valving member moves to the second position when the temperature of the liquid is above the shutoff temperature.

Abstract: A temperature responsive flow control valve has a plunger type actuator positioned in a fluid flow passageway between a valve head and an adjustable abutment member. The actuator includes a canister filled with a heat expansible material which expands upon heating to drive the actuator from the canister so as to engage the valve head and drive it out of seated engagement with a valve seat against the biasing force of a spring. The abutment member is axially adjustable toward and away from the valve seat to adjust the distance therebetween. By adjusting the distance between the abutment member and the valve seat the temperature at which the actuator expands to a sufficient degree to open the valve may be adjusted. A controlled leak through the valve is provided.

Abstract: A thermostatic valve includes a valve housing and a preassembled construction unit insertable into the valve housing to form a complete assembly. The valve housing is stepped with a widest section closest to an insertion opening. The preassembled construction unit includes a thermostatic working element with restoring spring and movable valve elements.

Abstract: In the case of a valve having a closing member and having a switching element which moves the closing member into the opening direction when a given temperature is reached, it is provided that the closing member can be moved in the opening direction against the effect of a spring which is independent of the function of the switching element and therefore serves as a relief valve which can be adjusted to a desired excess pressure.

Abstract: The present invention relates to a thermal relief valve that includes a main body with an inner annular surface that includes a shoulder proximal to one end of the main body. The relief valve also includes a spring that rests on the shoulder of the inner annular surface of the main body. The relief valve additionally includes a thermal actuator component with a cup section and a piston section attached to the cup section. The cup section is separated from the piston section by a shoulder. The shoulder rests upon the spring. The relief valve also includes an O-ring that rests upon the shoulder of the thermal actuator and a cap that rests upon an O-ring within the main body of the relief valve.

Abstract: The present disclosure concerns a thermally controlled valve, such as may be installed in the cooling water system of internal combustion engines. The thermally controlled valve eliminates thermal hunting as the temperature of the cooling water increases by restricting the initial flow of cooling water. Subsequently, additional cooling water flow is permitted as the temperature of the cooling water further increases.

Abstract: A two-way thermally activated valve is configured within a valve body having a bore therethrough which communicates with an inlet port, an outlet port and an exhaust port. A valve spool is disposed within the bore. The valve spool has a relieved portion which permits continual communication between the inlet port and outlet port regardless of the position of the valve spool. When the valve spool is in a first mode, the exhaust port is in communication with the bore and, when the valve spool is a second mode, the exhaust port is blocked. Since the inlet and outlet ports are never blocked, pressure builds at the outlet port as the exhaust port closes. The valve is shifted from the first position to the second position as a thermally expandable wax element pushes the spool axially against the bias of a coil spring.

Abstract: In a thermally-actuated steam trap, a valve casing is formed therein with an inlet, a valve chest and an outlet, and a valve seat member is disposed between the valve chest and the outlet. Within the valve chest, there is further provided a temperature control element including two disk-like wall members and a diaphragm member provided between the wall members. The diaphragm member is secured at the peripheral edge to both the wall members, and the inner space formed thereby accommodates an expansible medium. The diaphragm member carries a valve member cooperating with the valve seat member at the side opposite the expansible medium side, and in the central region of the valve member directed toward the diaphragm member is provided a recess portion which becomes deeper as it proceeds toward the center.

Abstract: A thermally-actuated steam trap, which performs the opening and closing operations of a valve according to a change in the volume of an expansible medium, comprises at least two diaphragms and a valve member fitted to the lower diaphragm. The lower diaphragm is shaped so that it comes to be more sensitive to a change in pressure than the upper diaphragm, to provide a steam trap which permits a discharge passage to be opened also when the fluid pressure at the inlet side is relatively week, and which is stable in operation from the initial stage as the opening and closing operations of the valve are performed intermittently.

Abstract: In the Freeze Control Valve is situated a bellows that will contract at a temperature of 33 to 34 degrees F. thus triggering the valve to its position allowing the water or liquid to flow through a small discharge hole in the valve body, this in turn allows the water to heat to a higher temperature as it flows from the water line that are normally buried underground or an area that would have an above freezing temperature of 45 to 50 degrees F., the bellows at this temperature will expand, thus closing the Freeze Control Valve shutting off all exiting through the small discharge hole in the side of the valve body. When the water in the Freeze Control Valve drops again to 34 degrees F. the valve bellows repeats its action, this keeps the water from freezing.

Abstract: In a vehicle with a liquid cooled engine and a heat exchanger such as an interior heater for the passenger compartment, an isolation device positioned therebetween for normally permitting flow of liquid from the engine cooling system to the heat exchanger and then back to the engine cooling system but for blocking flow to the heat exchanger when the liquid temperature is excessive. The device including a thermally responsive power means responsive to a high liquid temperature to block liquid flow to the heat exchanger and redirect the flow in bypass relation to the heat exchanger.

Abstract: A valve assembly is disclosed which includes a first valve disc positionable against a valve seat in response to sensed temperature. The first valve disc includes a central aperture which is closeable by a second valve disc held in position by a compression spring. The second valve disc is displaced in response to liquid pressure. The valve assembly thereby provides for the independent control of flow through a passageway in response to temperature and/or pressure. The valve assembly has a particular application in conjunction with the control of bypass flow for a continuous flow liquid heater.

Abstract: A heater valve for a diesel fuel system for a vehicle having a main body portion with a fuel inlet and a fuel outlet adapted to be coupled to the vehicle fuel system. A fuel inlet line and a fuel outlet line from the valve are adapted to be coupled to a heat exchanger. A fuel distribution chamber in the valve is in fluid communication with the fuel inlet and the fuel outlet line and a fuel mixing chamber in the valve is in fluid communication with the fuel inlet line and the fuel outlet. A port opens into the mixing chamber and a spring biased valve in the mixing chamber has a restrictor normally restricting the size of the port opening with a valve shaft extending through an opening in a partition wall into the distribution chamber into engagement with a calibrator.

Abstract: In order to open a valve member during the breakage of a temperature control element and to prevent the counterflow of fluid from an outlet side to an inlet side even when pressure at the outlet side becomes higher than that at the inlet side, there is provided a thermally-actuated steam trap comprising: a valve casing having an inlet, a valve chest and an outlet, a valve seat member having a discharge passage between the valve chest and the outlet, a temperature control element disposed in the valve chest and including a cover member, a first diaphragm, a second diaphragm and a valve member and containing expansible medium, and a through hole formed respectively on the second diaphragm and the valve member attached thereto, through which a face of the first diaphragm being not in contact with the expansible medium communicates with the discharge passage.

Abstract: A flow control valve is disclosed in a household refrigeration appliance having a vapor compression refrigeration system comprising a cyclically operated compressor, a condenser, an evaporator and an expansion device between the condenser and the evaporator. The refrigerant flow control valve is disposed between the condenser and the evaporator and comprises a housing defining a refrigerant flow chamber for receiving liquified refrigerant from the condenser outlet, valve seat structure defining a refrigerant flow port for communicating refrigerant from the condenser to the evaporator, and a flow controlling valve assembly coacting with the valve seat structure to control the refrigerant flow from the refrigerant flow chamber to the expansion device. The flow control valve controls system refrigerant flow in response to subcooling, blocks refrigerant flow from the condenser when the compressor is cycled off and enables circulation of hot gaseous refrigerant under extreme high temperature ambient conditions.

Abstract: A heater valve for a diesel fuel system for a vehicle having a main body portion with a fuel inlet and a fuel outlet adapted to be coupled to the vehicle fuel system. A fuel inlet line and a fuel outlet line from the valve are adapted to be coupled to a heat exchanger. A fuel distribution chamber in the valve is in fluid communication with the fuel inlet and the fuel outlet line and a fuel mixing chamber in the valve is in fluid communication with the fuel inlet line and the fuel outlet. A port opens into the mixing chamber and a spring bias valve in the mixing chamber has a restrictor normally restricting the size of the port opening with a valve shaft extending through an opening in a partition wall into the distribution chamber into engagement with a calibrator.

Abstract: A thermostatically controlled three-way valve is provided with a valve actuating assembly containing a wax-type thermally responsive acutator that is mechanically separate from a valve assembly containing a valve poppet supported by a valve stem so as to facilitate the replacement of a dysfunctioning wax-type thermally responsive actuator. In the event such a problem occurs with the wax-type thermally responsive actuator due to the operation of the valve, a manual override mechanism employing a hollow threaded nut arrangement can be used to engage the valve stem and manually position the valve poppet to control fluid flow through the valve.

Abstract: A thermal relief valve is constructed and arranged to sense the fluid temperature of a pump and to open when this fluid temperature becomes too high to discharge pump fluid to prevent the occurrence of an excessive temperature conditon of the pump fluid.

Abstract: A device to protect garden hoses and other fluid conduits from wear and bursting caused by pressure build-up due to heat generation particularly from the sun's rays. The device can be attached between the house spigot and hose or at the end of a hose between the hose and spray attachment. The device comprises a housing with a threaded inlet end for attachment to a hose or spigot, a central chamber containing a thermostat in a valve moveably mounted on a spring, which together are adapted to open water release holes at the outlet port end when water temperatures reach a predetermined level and close when the water temperature decreases to a second predetermined level. Sufficient openings in the device, allow full flow of fluid through the inlet port, the chamber and the outlet port and attachment, but still provides protection against pressure build-up when the hose is not in use.

Abstract: A fail-safe thermostat for vehicular cooling systems is positioned in a junction leading to an internal coolant passageway, a radiator passageway and a bypass passageway. An open housing seated in the junction supports a fixed central rod extending into the wax filled interior of a movable cylindrical member which controls the position of the interior segment of a main valve. Expansion of the wax forces the cylindrical member in a first direction against a compression spring. Fusible alloy is disposed in the coupling between the cylindrical member and the main valve, and melts at a specific temperature range in excess of the normal range. When this occurs the coupling is released in such a way that the spring forces the valve member to a second limit position opposite to the direction of expansion. A bypass closure member at one end of the cylindrical member may be used to close the bypass passageway concurrently with increased temperature.

Abstract: A valve including a heat sensitive actuator which operates to close the valve when the temperature of the fluid flowing therethrough exceeds a predetermined value but which may be quickly restored to operable condition by flowing a cooling fluid around the actuator.

Abstract: A pressure relief by-pass control valve in a system flowing fluid of changing temperature. The vale incorporates a signalling mechanism to indicate when differential pressures have put the valve in a by-passing mode, including an indicator button displaceable by a valve member in moving toward an open position. Temperature responsive structure closes and opens a gap in the connection between the valve member and the indicator button. As used with a heat exchanger, the valve signals the fact of a clogged heat exchanger core, while obviating giving of a false signal when high pressure differentials resulting from low temperature operating conditions occur.

Abstract: There is provided, in a thermostatic steam trap that can operate in either of two modes merely dependent upon which way round the trap is connected in a steam flow line, a temperature-responsive element (9) in which there is a valve member (23) that projects from a housing (16) of the element (10) to an extent dependent upon movement of a diaphragm (19) within the housing (16). Movement of the valve member (23) out of the housing (16) to close on a seat (6) is opposed by a spring clip (8), arms (14) of which embrace the outside of the housing (16), so that if the diaphragm (19) fails the trap as a whole fails with the valve (23/6) open. Conveniently the spring clip (8) serves a further function in that lugs (15) of the clip locate on a wall of the valve seat (6) to locate the element (9) in the trap.

Abstract: A refrigeration circuit including a compressor, a condenser, a control device, an evaporator and an accumulator is disclosed. The elements are serially arranged with the control device located between the outlet of the condenser and the inlet of the evaporator. The control device includes a tubular casing having three spaced walls on its interior surface. The first wall includes a plurality of holes and has a bellows attached to the interior surface thereof, the second wall has a longitudinal bore and a parallel bypass hole therethrough, and the third wall includes an orifice. An operating valve is mounted on the opposite end of the bellows. The bellows expands and contracts in accordance with the temperature of refrigerant fluid and the outlet side of the condenser, thereby, moving the operating valve to the left or the right. Movement of the operating valve controls the open cross-sectional area of the longitudinal bore so that the flow volume of refrigerant fluid in the circuit may be controlled.

Abstract: Apparatus is described having a steam inlet coupled to a steam trap set to discharge condensate at a first predetermined temperature to a condensate return line. A diverter valve is coupled in line to the steam trap to cause the condensate to be discharged at a second predetermined temperature out of an overheat condensate drain port and to close the discharge to the condensate return line.

Abstract: A capsule of a thermic control device contains a substance which expands when heated by an electrical resistor to displace a piston. Devices are disclosed wherein the capsule is disposed transversely in a pipe which carries a circulating fluid, and the front and rear ends of the capsule are sealingly affixed in opposed openings in the wall of the pipe. In one such embodiment, the pipe has two fluid channels; the capsule lies in one channel; and, the piston actuates a valve which is disposed in the other channel.

Abstract: There is provided, in a thermostatic steam trap that can operate in either of two modes merely dependent upon which way round the trap is connected in a steam flow line, a temperature-responsive element (9) in which there is a valve member (23) that projects from a housing (16) of the element (10) to an extent dependent upon movement of a diaphragm (19) within the housing (16). Movement of the valve member (23) out of the housing (16) to close on a seat (6) is opposed by a spring clip (8), arms (14) of which embrace the outside of the housing (16), so that if the diaphragm (19) fails the trap as a whole fails with the valve (23/6) open. Conveniently the spring clip (8) serves a further function in that lugs (15) of the clip locate on a wall of the valve seat (6) to locate the element (9) in the trap.

Abstract: A thermostatic steam trap is described wherein a thermostatic actuating means including a valve is mounted for axial movement of the valve into and away from sealing contact with a valve seat positioned axially of the hollow cylindrical body of the steam trap by a circular baffle which loosely engages both the actuating means and portions of the body of the steam trap. The baffle is oriented transversely of the hollow cylindrical body at the inlet end of the steam trap and has nonarcuate segments formed upon its periphery, thereby causing diversion of the steam flow away from direct impingement upon the thermostatic actuating means, while ensuring good heat transfer to the thermostatic actuating means. This construction provides for a self-centering steam trap valve.

Abstract: A thermostatic steam trap is disclosed in which a control chamber contains an insert enclosing a bellows adapted to force a valve member to a closed position in a direction opposite the normal flow of fluid through the trap together with self-centering means to center and align the valve member with respect to the valve seat.

Abstract: In a bellows-actuated thermostatic steam trap (A) having a bellows (41) carrying a valve member (45) of a valve (45/22) for opening and closing the trap, the bellows is disposed between connections (20/21 and 30/31) which are identical to one another so as to be selectively connectable in a steam flow line with the valve (45/22) disposed either downstream of, or upstream of, the bellows (41). The trap includes a metal housing (11/12), the mass of which constitutes at least 70% of the mass of the trap. The trap operates, when connected with the valve disposed downstream of the bellows, in a first mode in which, in normal operation, the trap discharges condensate at a temperature close to saturated steam temperature. When connected with the valve disposed upstream of the bellows, the valve operates in a second mode in which in normal operation condensate is discharged at a temperature significantly below steam temperature.

Abstract: A thermostatic steam trap, which operates either as a blast trap or a liquid expansion trap, depending solely on reversal of inlet and outlet function, has a generally cylindrical housing containing an internal cavity. The housing has two parts, the first of which contains a passage leading to a valve seat and the second of which contains a passage leading, via a plurality of bores, to the cavity. Within the cavity is a bellows, filled with a volatile liquid, having a valve on its top which mates with the valve seat and connected at its bottom to the second housing part. The connection is pivotal to permit self-centering of the valve. Either passage can serve as an inlet depending on which operating modality is desired.

Abstract: The present invention relates to a thermally responsive valve device including a body with an inlet port and first and second outlet ports. A spool valve is slidably mounted within the body and includes a valve portion for selectively connecting the inlet port with one of the first and second outlet ports. A temperature responsive element causes the spool valve to move in response to changes in temperature. A valve is provided for controlling fluid communication through the first outlet port. The valve is mounted on the spool valve such that the valve moves with movement of the spool valve until the valve closes the first outlet port and such that subsequent movement of the spool valve is independent of the valve.

Abstract: A valve device for use in preventing freeze damage caused by water freezing in water pipes in the home or other location. The device includes a cylindrical body portion which houses an apertured retainer plate and a bellows assembly with attached valve stem for coacting with a valve seat located in one end cap. The bellows is initially charged to an expanded condition with a fluid such as a gas mixture which contracts as the temperature approaches the freezing temperature of water. In one embodiment, the length of the valve body may be changed to compensate for changes in ambient temperature and pressure which can affect the relation between valve stem and valve seat.

Abstract: A device in a fluid flow path moves to perform a fluid flow control operation at a predetermined high fluid temperature. A mechanism normally locked out of participation in the movements of the device is released at a selected fluid temperature higher than the predetermined fluid temperature and compells the device to a performance of the control operation. The thermostatic device and the locking and release mechanism are incorporated in a unitary structure insuring the carrying out of a control function even when elements of the device having primary responsibility therefor fail or respond inadequately.

Abstract: A thermostatically controlled valve in the cooling medium circulation of liquid-cooled internal combustion engines with two coaxially arranged interconnected valves which are actuatable by a temperature-dependent working element disposed therebetween and which control a radiator return line and a bypass line; the valve controlling the bypass line includes a valve disk arranged at the temperature-dependent working element and is provided with through-flow openings controlled as a function of temperature so that a partial quantity of the cooling medium can circumcirculate the temperature-dependent working element; the through-flow openings are thereby arranged in the valve disk of the valve and abut sealingly on the valve seat of this valve when the bypass line is closed.

Abstract: A control valve used as a steam trap including a flexible flow adjustment restriction device, such as a flexible tube, with a chamber filled with a control fluid having a high co-efficient of thermal expansion and a heat conduction configuration conveying heat from the flow to the control fluid, such that a change in the flow temperature causes expansion or contraction of the control fluid to adjust the flexible flow adjustment member; to provide a universal steam trap.

Abstract: The thermostat mounting assembly is used to support a thermostat at a location between an engine block and a radiator. The housing has a fluid inlet port and a fluid outlet port with a support assembly used to rigidly fix the thermostat in place within the housing. A manually operable mechanism is connected to the housing to effect a continuous flow of coolant liquid to by-pass the position of the thermostat between the engine block and the radiator.

Abstract: A thermostatically controlled mixer battery. The appropriate mixer battery having plate control means 2 comprising at least one rotatable control plate 24 for controlling the quantity of water delivered and manually actuable from externally by a user, the plate 24 having bores 243, 244 selectively alignable with hot and cold water inlet bores 233, 234 and a temperature control plate 25, which is thermostatically actuated and is sealingly displaceable relative to the quantity control plate 24, the plate 25 having bores 253, 254 formed therein which permit the hot and cold water to pass therethrough in a desired ratio to a mixing chamber 15.

Abstract: An automatic fluid control assembly comprising housing means having an inlet port and outlet port so as to permit the fluid to flow through the housing means between the ports with valve means operatively associated with input port to control the volume of fluid flow through the assembly depending on the position of the valve means relative to the inlet port, and a temperature responsive drive means mounted within the housing means in operative relation to the valve means and adapted to detect temperature changes of the fluid so as to actuate in response to temperature changes within a predetermined range, wherein the valve means is moved to automatically vary the volume of fluid flowing from the outlet port depending upon the temperature of the fluid.

Abstract: An oil temperature regulator having a by-pass first passage means through the regulator for the oil, a heat exchange second passage means separate from the first, a cooler for transfer of heat between the cooler and the heat exchange second passage means, a first valve movable to open and close a first port between said oil entrance and heat exchange second passage, a second valve downstream from the first valve movable to open and close a second port between the by-pass and heat exchange passages for directing oil away from said by-pass passage through said heat exchange second passage at a selected temperature, a third valve downstream from the second valve movable to open and close a third port between the by-pass first passage means and the oil exit and temperature responsive means at the entrance operable by the entering oil at a first temperature to open the normally closed first valve at this temperature and temperature responsive means operable by the exiting oil at a second temperature higher than sa

Abstract: A thermic control element has a plate-like wall part and a membrane member which is peripherally coupled therewith which, on its one side, supports a locking element and, on its other side, a counter plate facing the wall part. The locking element, the membrane member and the counter plate are rigidly coupled with each other in their central area and the wall part has a cup-shaped curvature with a support face for the outer edge zone of the counter plate. An expansion medium is contained in a receiving chamber formed between the wall part and the membrane member. In the open end position of the locking element, the locking element and the wall part are provided with corresponding cooperating stroke engaging faces and, in the locking element closing position, the axial distance between the stroke engagement faces of the locking element and the wall part is smaller than the axial distance between the support face and the outer edge zone of the counter plate.

Abstract: A coupling adapter is disclosed for coupling a remotely-located fluid circulation device and a fluid filter to the fluid reservoir of an engine, transmission unit or other hydraulic system in place of a standard spin-on fluid filter. The adapter consists of a disk-shaped body having first and second spaced-apart end surfaces. First and second cylindrically-shaped cavities extend partially into the disk-shaped body, respectively, from the first and second end surfaces. A plurality of concentric ridges intersticed with concentric grooves is provided in the first end surface surrounding the first cylindrically-shaped cavity. A central wall section within the disk-shaped body separates the first and second cavities. A central bore extends coaxially through the central wall section for receiving and supporting a hollow nipple adapted to align and secure the coupling adapter to the fluid reservoir.