Abstract: A cooling device for engine oil and/or transmission fluid, in particular of an internal combustion engine, has a flow-through oil cooler in an oil trough. The oil cooler is formed by a plate heat exchanger with plate intermediate spaces which route coolant and oil. The plate intermediate spaces that conduct oil have an outer opening region which is arranged on the outer circumference of the plate heat exchanger as inflow region, via which hot oil to be cooled flows into the oil-conducting plate intermediate spaces. Furthermore, the oil-conducting plate intermediate spaces have an outer outflow region which is arranged on the outer circumference of the plate heat exchanger at a distance from the inflow region. The outflow region is connected indirectly or directly to an outer oil line connecting region, via which cooled oil flows out after heat exchange with the coolant. The plate heat exchanger is suspended in the oil trough at a defined spacing from the oil trough walls which surround it.

Abstract: In a compound type heat exchanger, a first heat exchanger includes a pair of tanks arranged a certain distance apart from each other and a core part having tubes and fins that are alternately piled up between the pair of tanks. One of the pair of tanks is composed of a plurality of divided bodies that are connected along a longitudinal direction of the one of the pair of tanks. One of the plurality of divided bodies is provided with an accommodation portion that projects outwardly to communicate with the one of the plurality of divided bodies. A second heat exchanger is arranged in the accommodation portion through an opening portion of the accommodation portion, which is provided with an input port. Heat is exchanged between an intake air of the first heat exchanger that flows in the accommodation portion and a coolant of the second heat exchanger.

Abstract: A spin-on adapter for a remote oil filter to provide additional cooling capability to the engine oil system includes a unitary piece main body having edges, a base attached the main body, a step between the main body and the base, a first orifice and a second orifice extending throughout the main body, the step, and the base, and plurality of cooling fins protruding from the edges of the main body. The plurality of fins are integrated to the unitary piece main body and the adapter is adapted to be secured to a vehicle engine.

Abstract: A plate heat exchanger (100) including a number of heat exchanger plates (1), which are arranged beside each other and connected to each other by means of a braze connection to form a stack of plates (2), wherein the heat exchanger plates are substantially manufactured in stainless steel containing chromium, wherein the plate heat exchanger (100) includes a number of port channels extending through at least some of the heat exchanger plates (1), and wherein the plate heat exchanger (100) further including end plates (3, 5) covering each end of the stack of plates (2) and having port holes associated with the port channels, where at least one end plate (3, 5) has at least one port hole provided with a cover (9, 12) and where said cover includes means (9, 12) for increasing the strength and means (14, 15) for sealing off the at least one end plate (3, 5) against an adjacently arranged heat exchanger plate.

Abstract: A method and a device for influencing the temperature of at least one electromechanical component situated in a motor vehicle, in which a transmission situated in the motor vehicle is cooled by a transmission oil flowing in a transmission cooling circuit. A cooling circuit branch is provided for influencing the temperature of the electromechanical component. The transmission oil also flows in the cooling circuit branch as a heat carrier. The flow rate of the transmission oil in the cooling circuit branch is influenced for influencing the temperature of the electromechanical component as a function of the setpoint operating temperature and/or the actual operating temperature of the electromechanical component.

Abstract: A reinforcing element for a heat exchanger of the type having nested dish plates with inclined, peripheral, overlapping walls, where at least one of the nested dish plates is attached to a mounting plate, the mounting plate extending beyond the outer periphery of the walls of the nested dish plates. The reinforcing element has a base flange attached to the mounting plate extending beyond the outer periphery of the walls of the nested dish plates. The reinforcing element also has a peripheral flange located in parallel, overlapping engagement with the inclined peripheral wall of the at least one dish plate attached to the mounting plate.

Abstract: A heat exchanger for cooling a liquid has an inlet and an outlet for a liquid to be cooled. A bypass is provided that bypasses the heat exchanger. A valve controls flow of liquid into the heat exchanger or into the bypass. The valve has a valve seat, a valve cone, and at least one spring made of a shape memory material. The at least one spring counteracts a liquid pressure existing in the inlet.

Abstract: A plurality of flat tubes formed as a tube having notches by linearly cutting upper and lower parts from a hollow flat circular doughnut shape are stacked to structure a tube laminate. It is attached to a case so that a notch aligns with the notch and faces upward by an exhaust inflow end plate and that a notch aligns with the notch and faces downward by an exhaust outflow end plate. A cutoff valve is provided at an exhaust outflow end of an exhaust communication tube passing through the center of the tube laminate by heat insulation. While an internal combustion engine is warming up, the cutoff valve is closed to cause the exhaust to flow in gaps of the respective flat tubes from upward to downward as a whole and also a heat exchange medium is caused to flow in the respective flat tubes from downward to upward as a whole to have heat exchanged between the exhaust and the heat exchange medium to recover the exhaust heat.

Abstract: A cross-flow reservoir has a uniquely integrated filter and heat exchanger, whereby the reservoir, filtration and cooling functions are all performed by a single unit and without connecting fittings and connecting hoses therebetween.

Abstract: A charge air cooler comprises at least one tubular element with an internal flow duct for guiding compressed air, and a tank for receiving the compressed air before it is led through the flow duct. The compressed air is cooled by a first cooling medium of ambient air as it passes through the flow duct. A cooling element at least partly situated inside the tank provides the compressed air in the tank with a first step of cooling before the air is led to the flow duct wherein the air undergoes a second step of cooling.

Abstract: A reinforcing element for a heat exchanger of the type having nested dish plates with inclined, peripheral, overlapping walls, where at least one of the nested dish plates is attached to a mounting plate, the mounting plate extending beyond the outer periphery of the walls of the nested dish plates. The reinforcing element has a base flange attached to the mounting plate extending beyond the outer periphery of the walls of the nested dish plates. The reinforcing element also has a peripheral flange located in parallel, overlapping engagement with the inclined peripheral wall of the at least one dish plate attached to the mounting plate.

Abstract: The invention relates to a plate heat exchanger including a plurality of plates. The plates extend in parallel to a main extension plane and include several heat exchanger plates and a strengthening plate (2). The heat exchanger plates are provided beside each other and form a plate package with first plate interspaces and second plate interspaces. Each heat exchanger plate has four portholes forming ports (8) through the plate package. The heat exchanger plates include an outermost heat exchanger plate at one side of the plate package and an outermost heat exchanger plate at an opposite side of the plate package. Two of the plate interspaces in the plate package form a respective outermost plate interspace at a respective side of the plate package, which are delimited outwardly by a respective one of the outermost heat exchanger plates. The strengthening plates are provided outside one of the first heat exchanger plates.

Abstract: In an oil cooler installation structure for a vehicular transmission, an oil cooler by means of which oil is cooled is provided, oil being delivered between the oil cooler and an internal of a transmission housing, and an oil cooler installation portion is provided in the internal of the transmission housing and in which a first oil passage for supplying oil in the internal of the transmission housing to the oil cooler via a first opening portion opened at an external of the transmission housing and a second oil passage for supplying oil from the oil cooler to the internal of the transmission housing via a second opening portion opened at the external of the transmission housing are formed, the oil cooler being attached onto the oil cooler installation portion to enable a delivery of oil via the first opening portion and the second opening portion.

Abstract: A liquid filter heat exchanger unit has a heat exchanger having an inlet through which a liquid is supplied to the heat exchanger and a drain through which the liquid exits after having passed through the heat exchanger. The unit also has a liquid filter with a filter housing and a filter element exchangeably arranged in a receiving chamber, wherein the liquid is supplied through the drain of the heat exchanger to an unfiltered side of the filter element. A bypass connects an inlet passage for supplying the liquid to be filtered to the receiving chamber in the filter housing. A switching member opens and closes the bypass. The switching member is formed by the filter element such that the bypass is closed when the filter element is inserted in the filter housing and is opened when the filter element is removed from the filter housing.

Abstract: An oil cooler, in particular for hydraulic oil, which is composed of spaced-apart cooling plates which are in the form of a parallelepiped-shaped package (1), said plates separating coolant channels and oil channels from each other. Connections (3, 4) for supplying and removing the oil and the coolant are provided on the front side (2) of the plate package, and filter plates (4) are arranged upstream from the plate package on the other side (5) of the plate package. The measurements of the filter plates essentially correspond to the measurements of the cooling plates. The filter plates are detachably connected to the plate package via a closing face plate (1?). The filter plates are transversed by oil openings, which are connected to the oil inlet opening (2?) in the closing face plate and to an oil inlet opening (2?) in the plate package.

Abstract: A rivet-type flapper valve assembly for a fluid device has a main body part defining a valve orifice communicating with the fluid device. The main body part includes a pin or shaft of a rivet spaced adjacent to the valve orifice. The main body part is permanently attached to the fluid device, such as by brazing. A flapper valve is then mounted on the rivet shaft to cover the valve orifice, and the rivet shaft is deformed to retain the flapper valve in place.

Abstract: The invention relates to a plate heat exchanger, composed of trough-shaped heat exchanger plates which are stacked one in the other and whose edges bear against one another. The plates can have flow ducts, located between the heat exchanger plates for a cooling fluid and for another fluid. The flow ducts are fitted with inserts in the form of turbulator plates. The heat exchanger can include at least four inlet and outlet openings in the corners of the heat exchanger plates which form two vertical ducts for the cooling fluid and two vertical ducts for the other fluid in the stack. The inserts in the flow ducts for the cooling fluid are embodied in one part or a plurality of parts. The flow ducts for the cooling fluid are equipped, in the regions around the openings, with plate-like inserts which have guide ducts with a width, and are provided with the turbulator plate in a central region between the plate-like inserts.

Abstract: Disclosed is a bypass valve assembly for a fluid device, such as a heat exchanger having an inlet and an outlet. The assembly defines a bypass passage communicating with the inlet at one end. A tubular structure communicates with the outlet and has a bypass aperture in a sidewall thereof which communicates with the other end of the bypass passage. A semi-cylindrical spring flapper is fitted in the tubular structure and opens to allow bypass flow when the pressure in the bypass passage exceeds a predetermined limit.

Abstract: A heat exchanger that can prevent damage to joints of tubes and side plates at core plates and is easy to produce which has side plates enabling stable brazing of the tubes and fins with the side plates, that is, a heat exchanger provided with a plurality of tubes through a heat exchange medium passes, a plurality of fins alternately stacked with the tubes and increasing the heat transfer of the heat exchange medium, core plates to which the two ends of the tubes are connected, and side plates arranged at the outsides in the stacking direction from the end fins arranged at the outermost sides in the stacking direction of the fins and connected to the core plates, wherein at least one of the side plates has a plurality of bridge portions at intermediate locations in the longitudinal direction, and at least one location of the bridge portions has a slit provided by cutting after the brazing of the tubes and the fins.

Abstract: The invention relates to a stacked plate heat exchanger (1), in particular, an oil cooler for motor vehicles, made up into an assembly from alternating dished plates and baffle sheets (3), stacked one on top of and inside the other, each comprising first and second through openings (7, 8), for the formation of distribution and collector channels, which are welded together to form said first and second flow channels, whereby the baffle sheets (3) form a stay between the stacked plates and the assembly is enclosed by a base plate (4) and a cover plate (5).

Abstract: A heat exchanger structure of an automatic transmission stabilizing a temperature of oil is provided. A heat exchanger structure of an automatic transmission includes an automatic transmission, a first heat exchanger provided on an upstream side and a second heat exchanger provided on a downstream side, each capable of cooling oil ejected from the automatic transmission, and a thermo valve capable of supplying oil subject to heat exchange by at least one of first and second heat exchangers to the automatic transmission. When a temperature of the oil is relatively low, the thermo valve supplies oil passed through the first heat exchanger to the automatic transmission and shuts off a flow of oil from the second heat exchanger to the automatic transmission. When a temperature of the oil is relatively high, the thermo valve supplies oil passed through first and second heat exchangers to the automatic transmission.

Abstract: A flapper valve assembly attaches to a fluid device, such as a heat exchanger and has a fluid port in communication with the fluid device to provide by-pass flow in cold flow or pressure spike conditions. The flapper valve assembly includes a shim plate and a face plate that together define a slot therebetween. A spring flapper slides into the slot and is retained therein and intermittently blocks flow through the fluid port to provide the by-pass flow when required.

Abstract: The present invention relates to a cooling mechanism (1), in particular for cooling oil in a motor vehicle, with a housing (2) having a bracket (3), by means of which housing (2) the cooling mechanism (1) is connected to an internal combustion engine, a transmission fluid cooler (10), and an engine oil cooler (7). Pertinent to the invention is that the cooling mechanism (1) is designed in a sandwich-type manner having an intermediate module (11) positioned between the engine oil cooler (7) and the transmission fluid cooler (10), which intermediate module (11) has at least one supply/removal assembly (12) that communicates with the engine oil cooler (7) and has corresponding supply/removal lines or connections.

Abstract: An oil cooler is contained in a radiator tank. It includes a connecting pipe having an enlarged diameter portion, a heat exchange part including elements and a communicating passage fluidically communicating the elements, and a pipe connector. The pipe connector has a first retaining portion seated on one side of a wall portion of the radiator tank to contain and fix at least a part of the enlarged diameter portion of the connecting pipe by caulking, and a second retaining portion inserted through a through-hole of the wall portion and an one end portion of the communicating passage to fix the heat exchanger part and the wall portion at the other side of the wall portion by caulking.

Abstract: A heat exchanger for cooling oil, including a plurality of pan-shaped heat-transfer plates stacked onto one another to define alternating channels for coolant and oil, a mounting plate soldered on one side to a side of the stacked plates and adapted to mount on its opposite side to a separate component. Openings through the heat-transfer plates and the mounting plate are provided for the passage of the oil and of the coolant, where the openings in the mounting plate have recesses therearound on the side opposite the heat-transfer plates. The recesses are adapted to receive seals therein.

Abstract: The invention relates to a coolant radiator for a motor vehicle, comprising a radiator block (2) made of tubes and ribs, a coolant inlet area (5) comprising a coolant inlet pipe connection (7), a cooling agent outlet area (6) comprising a cooling agent outlet pipe connection (8), wherein an oil radiator provided with oil connections (10, 11) which are guided out from the cooling agent area (6) is arranged. According to the invention, the coolant outlet connection (8) is arranged between the oil connections (10, 11).

Abstract: Improvement, in hydraulic systems, such as for vehicle transmissions and the like, in the form of a hydraulic reservoir with integrated heat exchanger having fluid supply/return and fluid return ports, including a central section, having inner and outer shell portions with a first gap therebetween, the outer shell being provided with a plurality of radially-spaced, external cooling fins, longitudinally-directed for the length of the central section; the ends of the latter being closed off via respective bottom and top cap portions, thereby defining a central fluid cavity, the top cap portion having spaced outer and inner cap portions, with a second gap therebetween, with a fluid inlet port, in the outer cap portion, directing incoming fluid from the second gap into and through the entire length of the first gap before entering the central fluid cavity, thereby maximizing heat transfer from the fluid via the plurality of cooling fins.

Abstract: The invention relates to a stacked panel-shaped heat transmitter comprising a plurality of interstacked trough-shaped panels (23,24) of a first and second type forming therebetween flow channels (25,26) for a first medium at a first height h and for a second medium at a second height H. The panels (23,24) have erect peripheral edges which are soldered to each other, the height thereof being different for the first and second type of panel. According to the invention, the first type of panel (23) has an edge (23a) corresponding to height h1 and a flank angle A. The second type of panel (24) has a higher edge which consists of at least three sections (24a, 24b, 24c), the height thereof being H1, H2 and H3. The first edge section (24a) corresponding to a height H1 and the third edge section (24c) corresponding to a height H3 respectively have a flank angle ?. The second edge section (24b) corresponding to height H2 extends vertically in relation to the base of the panel (24e).

Abstract: A plate-type heat exchanger is comprised of a stack of dished plates, with the plates being sealed at their margins by nesting sidewalls and the plate bottoms being spaced from one another to define a plurality of flow passages. Each of the plates has two pairs of openings. Two of the openings are formed in bosses which are joined to the sidewall along a portion of their length, thereby avoiding formation of a bypass channel between the bosses and the sidewall and maximizing the plate area available for heat transfer. The other two openings are provided with ribs which support the bosses of upwardly adjacent plates in the stack and which provide channels to provide transverse distribution of fluid across the plate.

Abstract: A heat exchanger apparatus is provided wherein a multifluid or at least three-fluid heat exchanger is mounted externally to but in combination with a two-fluid heat exchanger. The multifluid heat exchanger includes three fluid passages or conduits wherein heat energy can be transferred efficiently between at least one of the fluid conduits and each of the other fluid conduits. The multifluid heat exchanger and two fluid heat exchanger are arranged so that the two heat exchangers share a common fluid, the multifluid heat exchanger, therefore, allowing heat transfer to or from the common fluid to the two other fluids in the multifluid heat exchanger thereby improving the overall heat transfer amongst the fluids.

Abstract: The invention relates to a stacked-disc cooler for a motor vehicle comprising several discs (21-24) stacked on each other and connected together, in particular welded to each other, and a supply channel which passes through several discs and through which a cooling medium is introducible into the staked-disc cooler (1) and distributed on the individual discs. According to said invention, in order to obtain the improved staked-disc cooler (1), a valve device preventing the return of the cooling medium outside of the supplying channel (18) is mounted therein.

Abstract: A flapper valve assembly has a valve plate for attachment to a fluid device, such as a heat exchanger. The valve plate has a fluid port for permitting intermittent flow to or from a flow chamber in the fluid device. A resilient flapper covers the fluid port and has at least one transverse tab with resilient, laterally disposed tangs, so that the tabs snap into slots in the valve plate to prevent rotation of the flapper.

Abstract: The present invention provides an apparatus for improving the fuel economy of a vehicle. The apparatus includes a transmission having a transmission sump that contains transmission fluid, and a heat exchanger disposed within said sump and at least partially submerged in the transmission fluid. The apparatus also includes an engine having a plurality of engine coolant channels. An engine pump is operatively connected to the engine. The engine pump is configured to transfer engine coolant through the plurality of engine coolant channels and then through the heat exchanger. Heat from the engine coolant is transferred to the transmission fluid when the engine coolant passes through the heat exchanger. The heat transferred to the transmission fluid decreases transmission fluid viscosity such that transmission spin losses are reduced and fuel economy is improved. A corresponding method for improving the fuel economy of a vehicle is also provided.

Abstract: A heat exchanger is provided for dissipating heat from a fluid. The heat exchanger includes a plurality of stacked pairs of plates. Each pair of plates includes a first plate and a second plate. The first plate extends along a first axis and has first and second sides. The first side of the first plate has a generally sinusoidal recess therein that extends along the first axis. The second plate extends along a second axis and has first and second sides. The first side of the second plate has a generally sinusoidal recess therein that extends along the second axis and that is out of phase with the sinusoidal recesses in the first side of the first plate. The first side of the first plate and the first side of the second plate form a mating relationship with each other such that the recess in the first side of the first plate communicates with the recess in the first side of the second plate at a plurality of axially spaced locations.

Abstract: A heat exchanger transfers heat between primary and secondary fluid coolants. A housing has a longitudinal central axis lying within a transverse housing plane. A bottom wall with a concave inner surface faces upward and extends along the central axis. A plurality of arcuately helical lower sector fins are spaced apart along the central axis on the bottom wall inner surface. A cover has a longitudinal central axis lying within a transverse cover plane. A top wall with a concave inner surface faces downward and extends along the central axis. A plurality of arcuately helical upper sector fins are spaced apart along the central axis on the top wall inner surface. A copper tube is assembled into the housing in a direction transverse to the housing axis with the tube closely adjacent the lower sector fins. First and second sealing means seal the tube ends to the housing. The cover is assembled into the housing in a direction transverse to the housing axis with the upper sector fins closely adjacent the tube.

Abstract: There is disclosed an attachment (12) suitable for attaching a first component of an article to a second component of the article. The attachment preferably includes a flange portion (20) extending from the first component and one, but preferably, a pair of flange members (22) extending from the second component. The flange portion (12) and the flange members (22) typically interferingly engage one another for attaching the first component to the second component. It has been found that the attachment provided in the present invention is particularly effective for attaching a heat exchanger (14) to another component such as a shroud or another heat exchanger (16) together for forming a heat exchanger assembly (10).

Abstract: An oil cooling system of an air-cooled engine for cooling the oil reserved in a crankcase of the engine comprises a base plate assembled to the crankcase, an overlapping plate assembled to the base plate; an oil filter supported in the overlapping plate; and radiation fins formed on the base plate and the overlapping plate, wherein the base plate includes an inlet port for receiving the engine oil discharged from an oil pump of the engine, an outlet groove for outputting the engine oil and a first passage groove connecting the inlet port and the outlet groove, the overlapping plate includes an inlet groove opposed to the inlet port, an outlet port opposed to the outlet groove and a second passage groove opposed to the first passage groove to form an oil passage together with the first passage groove, and the base plate and the overlapping plate having through-holes where the filter outlet of the oil filter passes through for the connection with the crankcase.

Abstract: An insert adapted to connect to opposite walls in a heat exchanger tube, including a corrugated sheet having alternating wave crests and wave troughs connected by wave flanks having openings therein, wherein at least some of the wave crests have a length different than the length of the wave troughs, and/or adjacent sections have different wavelength waves. Such inserts may be produced by transporting material sheets through a press, where the sheet feed rate and/or the press stroke speed may be selectively varied.

Abstract: A flapper valve snaps into position in an inlet or outlet manifold of a heat exchanger to provide by-pass flow in cold flow or pressure spike conditions. The flapper valve includes a cradle having opposed spring fingers for retaining the valve in position. The cradle has a fluid port therein, and a spring flapper is attached to the cradle to cover the fluid port to control the by-pass flow therethrough.

Abstract: A heat exchanger, which performs heat exchanging between a lubricating oil circulating within a transfer device disposed behind an engine and an engine coolant, also functions as a mass member of a dynamic damper. The heat exchanger is disposed at an upper face of a transfer case via a resilient member. Herein, the resilient member is comprised of a first metal plate, a second metal plate, and a rubber member interposed between the first and second metal plates, and there are provided lubricating passages flowing within the resilient member. Accordingly, there can be provided the vibration suppression device of the power train that can suppress vibration properly regardless of the temperature changing and advantage the weight reduction without requiring any new disposition space.

Abstract: A heat exchanger, preferably an oil cooler (1) for a motor vehicle, comprises stacked flat tubes (2, 3, 4), which have tube ends with apertures for admitting and discharging oil, which flows through the flat tubes (2, 3, 4) in their longitudinal direction. The apertures of adjacent flat tubes (2, 3, 4) are in fluid communication with one another in order to form flow passages, and spacings are left between the flat tubes for a medium, in particular a cooling medium, to pass through. The flat tubes are designed as extruded multi-channel tubes.

Abstract: A heat exchanger has oil core plates and coolant core plates disposed in alternating, stacked relationship. Flow passages are provided between adjacent plates, so that the oil flow passages alternate with the coolant flow passages, and the oil can flow from an oil inlet opening of each oil plate, and through the oil flow passage to an oil outlet opening, and coolant can flow from a coolant inlet opening of each coolant plate through the coolant flow passage to a coolant outlet opening. The oil inlet openings are adjacent to one end of the plates, and the oil outlet openings are spaced from the oil inlet openings, with a passageway for flow of the oil between upstanding bosses of the coolant plates on opposed sides of each oil plate and extending from a gap in an upstanding flange of the oil plate to the oil outlet opening.

Abstract: A heat exchanger is disclosed. A plurality of guides are integrally formed with the walls of a header tank and are used to position an oil cooler inside the tank to align a pair of fittings carried by the cooler with a pair of spaced openings in the tank.

Abstract: Circulation system for the coolant in an oil cooler (13) adapted to cool down the oil of the automatic transmission (2) of a motor vehicle in which the drain conduit (15) for the coolant from the oil cooler (13) of the transmission (2) is connected to said return conduit from the radiator, and that the exit mouth (16), of said drain conduit is inserted in the return conduit forming an angle A, said angle being more than 0° and less than 90°.

Abstract: A heat exchanger includes a first section and a second section for cooling distinct fluids, wherein the second section is adapted for cooling oil. The heat exchanger includes first and second manifolds divided by baffles into first and second chambers. A plurality of tubes connect the manifolds in fluid communication with the first chambers to form the first section of the heat exchanger. A plurality of oil cooling tubes connect the manifolds in fluid communication with the second chambers to form the second section. The oil cooling tubes have a cross-section characterized by a performance ratio between about 3.9 and 8.5 wherein the performance ratio is the ratio of the wetted perimeter in millimeters divided by the cross-sectional area of tube metal in square millimeters. The oil cooling tubes may be formed of extruded metal with internal fins or an extruded tube having a stamped metal insert.

Abstract: A housing-less plate heat exchanger is provided for transferring heat between at least a first fluid and a second fluid. The heat exchanger includes a plurality of heat exchange plates stacked to enclose flow channels for the first and second fluids between the plates, a first intermediate plate pair sandwiched between a first and second stack of the heat exchange plates, and a barrier located between the plates of the intermediate plate pair to separate the first fluid from the second fluid. The intermediate plate pair includes a first fluid port extending laterally from the heat exchanger to transfer the first fluid between the heat exchanger and a device other than the heat exchanger. The intermediate plates are joined to enclose a first chamber, with the first chamber opening to the first fluid port and to a manifold for the first fluid to direct the first fluid between the first fluid port and the manifold.

Abstract: A liquid filter/heat exchanger unit including a liquid filter and a heat exchanger, the liquid filter having a filter element in a filter housing. To bypass the heat exchanger, there is a bypass connecting the heat exchanger inlet directly to the unfiltered side of the filter element. A switching element is provided to control the liquid flow into the heat exchanger or into the bypass. The switching element is a bimetal element which is in a position directing the liquid flow into the bypass at a temperature below a switching temperature.

Abstract: An integrated engine guard oil cooler is mounted to a motorcycle. The cooler is a hollow tube having an inlet, an outlet, a plurality of cross-sectional restrictions in its interior, and a plurality of radial cooling fins on its exterior. The tube has a shape such that, when the inlet and the outlet are mounted on opposite sides of the lower frame of a motorcycle, the tube extends outwardly from each side of the frame, then extends upwardly, and then extends inwardly to join and form an enclosed passageway. When the inlet and the outlet communicate with the oil reservoir of the engine, oil flows through the tube with successive pressure increases and pressure decreases as it passes the cross-sectional restrictions and heat from the oil is transferred to the ambient air through the radial cooling fins.

Abstract: An oil cooler is held by holding plates. Top portions of side pieces of each holding plate are disposed through a side wall of a tank and are bent at the outer surface of the tank, so that circular interposed members and the oil cooler are retained by being sandwiched between middle supporter pieces of the holding plates and the side wall of the tank in the stacking direction of element units such that the oil cooler is movable in the longitudinal direction with respect to the side wall of the tank. By inserting connecting pipes of the oil cooler through openings of the tank so as to temporarily assemble the connecting pipes into openings of a tube plate, blocking flanges of the connecting pipes are retained while being in contact with the outer surface of the side wall of the tank.

Abstract: A heat exchanger in which a heat exchanger core is disposed within a casing which includes a side wall formed by bending a plate into the form of a sleeve in which edges of the plate are in adjacent, confronting relationship with an inwardly projecting, transversely extending deformation, the deformation being disposed between a pair of press members with one of the press members being transversely inserted within the sleeve. The press members are moved together to remove the deformation with resultant pivoting of the edges into abutting contact or overlapping relationship. The heat exchanger core is formed of a plurality of stacked plate pairs each having a plate in inverted orientation. Outwardly projecting ribs of anticlastic form are so formed in each plate that the ribs on each plate of each plate pair are interengagingly intersect with the ribs on the adjacent plate of the adjacent plate pair accurately to align the plate pairs in the heat exchanger core.