Abstract: A rotating control device is remotely hydraulically latched and unlatched with a docking station housing for use and removal, respectively. The system and method allows for interactive lubrication and cooling of the rotating control device, as needed, along with a supply of fluid for use with an active seal. A first sensor and a second sensor can be used to detect temperature, pressure and density of the supplied fluid at different locations and this data can be compared using a central processing unit (CPU). Also, a sensor can be used to detect the revolutions per minute of a rotating seal of the rotating control device and fluid can be provided to the rotating control device responsive to the detected revolutions per minute.

Abstract: An apparatus for testing a subterranean formation penetrated by a wellbore is disclosed. The apparatus has a tool with a sample flow line an inlet disposed with the tool and configured to establish fluid communication between the formation and the sample flow line to draw a fluid sample into the sample flow line. An active filter is positionable in the sample flow line and provides a filter flow route and a bypass flow route in the sample flow line.

Abstract: The present invention is directed to a method of generating a basic water-in-oil emulsion for use in recovering hydrocarbons from a subterranean formation. The emulsion may be used to displace hydrocarbons from the formation. The emulsions used are ‘basic’ in the sense that they do not have added surfactants and are not solid-stabilized. The emulsions are made using a hydrocarbon having at least one of the following properties: (i) greater than five weight percent (wt %) asphaltene content, (ii) greater than two wt % sulfur content, and (iii) less than 22 dyne/cm interfacial tension between the hydrocarbon liquid and the aqueous liquid.

Abstract: A stimulation system configured for use in open-hole wells. The system may alternatively or additionally be configured for multi-zone stimulation applications. The system includes assemblies which employ techniques and configurations for isolating recovery screens downhole even without the presence of well casing. In this manner protection may be provided from dowhnole contaminants such as water which might otherwise leak in from adjacent formation layers.

Abstract: A method comprises providing a treatment fluid comprising a gelling agent, an aqueous base fluid, a buffer composition comprising a plurality of salts, and a crosslinking agent; and contacting a subterranean formation with the treatment fluid. The aqueous base fluid is preferably seawater and the buffer composition includes one or more salts present in the treatment fluid from about 1 to about 1000 pounds per gallon of treatment fluid.

Abstract: A double swivel for use with a top drive power unit supported for connection with a well string in a well bore to selectively impart longitudinal and/or rotational movement to the well string, a feeder for supplying a pumpable substance such as cement and the like from an external supply source to the interior of the well string in the well bore without first discharging it through the top drive power unit including a mandrel extending through double sleeves which are sealably and rotatably supported thereon for relative rotation between the sleeves and mandrel. The mandrel and sleeves have flow passages for communicating the pumpable substance from an external source to discharge through the sleeve and mandrel and into the interior of the well string below the top drive power unit. The unit can include a packing injection system, clamp, and novel packing configuration. In an alternative embodiment the unit can include a plug or ball insertion tool.

Abstract: A method of cementing in a subterranean formation comprises placing a cement composition comprising a non-metallic thermally conductive fiber into the subterranean formation, and allowing the composition to set therein, wherein the non-metallic thermally conductive fiber has a thermal conductivity greater than about 500 W/m·K. Another method of cementing in a subterranean formation comprises providing a cement composition comprising a pitch-based carbon fiber, a hydraulic cement material, and water, placing the cement composition in a formation, and allowing the cement composition to set therein, wherein said pitch-based carbon fiber has a density of from about 2.0 grams/cc to about 2.3 grams/cc. A cement composition comprising a cementitious material, water, and a non-metallic thermally conductive fiber having a thermal conductivity greater than about 500 W/m·K, or a pitch-based carbon fiber having a density of from about 2.0 grams/cc to about 2.3 grams/cc.

Abstract: A bearing for a wellbore tool includes a flow device. The flow device may be a pump such as a positive displacement pump or a hydrodynamic pump. In arrangements, a pump stator connects to a wellbore wall. A pump rotor rotates with a drilling motor, and/or a drill string. Rotation of the pump rotor may generate a pressure differential to displace the fluid. The pump may be configured to flow fluid across a gap between a rotating section and a non-rotating section of the bearing. The fluid may be drawn from a wellbore annulus and also returned into the wellbore annulus. The bearing may support thrust loadings and/or a radial loadings. In embodiments, inserts in the bearing may be used to filter the fluid.

Abstract: The method disclosed herein includes the introduction of proppant-free stage and a proppant laden stage into the wellbore and/or subterranean formation. The method increases the effective fracture width and enhances fracture conductivity within the formation. Either the proppant-free stage or the proppant laden stage contains a breaker. The other stage contains a viscosifying polymer or viscoelastic surfactant to which the breaker has affinity. The proppant-free stage may be introduced prior to introduction of the proppant laden stage into the wellbore and/or formation. Alternatively, the proppant laden stage may be introduced into the wellbore and/or formation prior to introduction of the proppant-free stage.

Abstract: Systems and processes are provided for removing fluid from a subterranean well and enhancing the production of oil and/or gas are herein disclosed. In one embodiment, the system includes an injection conduit, an injection valve, a relief valve, a container, a container valve, a return conduit valve, and a return conduit, all arranged within a subterranean well for removing at least one fluid from the well. The removal of at least one fluid from the well is controlled by the flow of gas into the injection conduit.

Abstract: This invention relates to well cleaning methods and apparatus. In particular, this invention relates to a method of drilling and cleaning a wellbore. In one embodiment of the invention, a method of drilling and cleaning a wellbore (12) is disclosed. The method comprises the steps of providing a drill string (10) having a drill bit (28) and a cleaning tool (24) with selectively activatable cleaning members (34); drilling a wellbore using the drill bit while maintaining the cleaning members in a deactivated position; and pulling the drill string from the wellbore with the cleaning members in an activated position, to thereby clean the wellbore. A corresponding cleaning tool is also disclosed.

Abstract: A method for use in a wellbore includes the steps of providing an elongated, closed tubular body defining an internal chamber wherein the tubular body has an external surface formed with treated areas and an elongated recess extending longitudinally of the tubular body and running through the treated areas; retaining a detonating device in the recess adjacent the external surface of the tubular body; positioning the tubular body with the detonating device in a wellbore adjacent perforation tunnels previously formed in a surrounding well formation and filled with debris; and activating the detonating device to rupture the tubular body inwardly along the external surface forming the recess at the treated areas to expose the chamber within the tubular body to a dynamic underbalanced pressure condition such that fluid from the wellbore and debris from the perforation tunnels is drawn through the wellbore and into the chamber.

Abstract: An embodiment of a running tool for setting and testing a packoff seal of a well pipe hanger has an elongated stem having an axial passage, a body, a cam, a cam tail, a stem engagement element, and a piston. A method of setting and testing a packoff seal comprises rotating the stem relative to the body to a delivery position, thereby disengaging the engaging element from the stem. The stem moves axially downward relative to the body to land the packoff. The engagement element reengages the stem in a landing position. Fluid pressure is applied to the axial passage to set and seal the packoff, thereby moving the running tool to a set position.

Abstract: A method and apparatus for stopping oil flowing from the end of a ruptured pipe or other device, by mounting a flange on the end of the ruptured pipe or device, if a flange is not already present; providing a gate valve having a flange on its lower end to mate with the flange on the ruptured pipe or device; providing a permanently affixed gasket member on the mounting flange of the gate valve; lowering the gate valve to the depth of the flowing oil from the ruptured pipe or device; providing at least two flexible bolts through opposite openings in the flange of the gate valve; while the gate valve is situated adjacent the flowing pipe or device, threading each flexible bolt through two opposite openings in the flange of the ruptured pipe or device; placing pulling pressure on the lower ends of the two flexible bolts to pull the gate valve from a position adjacent the ruptured pipe or device to a second position where the gasket of the gate valve mounts against the face of the flange of the ruptured pipe or de

Abstract: A termination assembly for a steel tube umbilical, wherein a plurality of the elongated umbilical elements which compose the umbilical are steel tubes, said termination assembly comprising a cavity through which said tubes pass, said cavity being filled with a filler material, at least one of said tubes having at least one region of increased localized diameter at a location within said cavity to define at least one load bearing face on the tube to anchor said at least one tube within said cavity.

Abstract: A method of unloading liquid from a reservoir includes deploying a pumping system into a wellbore to a location proximate the reservoir using a cable. The pumping system includes a multi-section motor, an isolation device, and a pump. The method further includes supplying a power signal from the surface to the motor via the cable and sequentially operating each section of the motor to mimic a multi-phase motor, thereby driving the pump and lowering a liquid level in the tubular string to a level proximate the reservoir.

Abstract: Methods and apparatuses for recovering heavy oil that, at least in one embodiment, include conditioning a reservoir of interest, then initially producing fluids and particulate solids such as sand to increase reservoir access. The initial production may generate high permeability channels or wormholes in the formation, which may be used for heavy oil production processes such as cold flow (CHOPS) or enhanced production processes such as SAGD, or VAPEX.

Abstract: An intelligent completion system includes production tubing configured for production from multiple zones in a wellbore. At least one flow control valve is disposed on the production tubing for each of the multiple zones, this flow control valve capable to regulate the flow of a wellbore fluid into the production tubing. A chemical injection mandrel is disposed on the production tubing adjacent the at least one flow control valve in the each of the multiple zones, this mandrel being connected to at least one chemical injection line for injecting one or more chemicals into the wellbore. A control mechanism is connected to the at least one flow control valve and the chemical injection mandrel such that the injection mandrel and the at least one flow control valve are operated in a coordinated manner.

Abstract: A system for sealingly engaging multiple downhole tubulars includes a first downhole tubular, a guide assembly and a swellable seal. The first downhole tubular includes an end for receiving a second downhole tubular. The guide assembly is disposed on an end of the second tubular. A swellable seal is disposed on an outer surface of the guide assembly. After the first tubular receives a second tubular, the swellable seal is activated to form an expanded circumferential seal between the first tubular and the second tubular.

Abstract: A downhole apparatus having a radially expanding portion and a support structure are described. The support structure comprises an attachment means for coupling to the apparatus and a support portion configured to be deployed from a first unexpanded condition to a second expanded condition by expansion of the apparatus. In one aspect of the invention, the downhole apparatus is expanded by exposing the swellable material to at least one predetermined fluid, and the support structure abuts the swellable material in its expanded form. A method of use and its application to a well packer, a hanging member, an anchor and a centralising apparatus are described.

Abstract: A downhole hydraulically powered tool (10) moves an expander (36) in a well to radially expand a downhole tubular. The tool includes a plurality of fluid-powered pistons (16, 20) for axially stroking the expander relative to a tool mandrel (12), and one or more slips (52) for axially securing the tool in the well. The tool mandrel is rotatably secured to the tubular to rotate with the tubular, thereby rotating a bit (60) at the lower end of the tubular. The expander is moved axially downward in response to axial movement of the pistons to radially expand the tubular after at least a portion of the well is drilled with the bit and while the slips secure the tool in the well.

Abstract: A method for radially expanding a tubular element in a wellbore formed in an earth formation comprises arranging the tubular element in the wellbore such that a lower end portion of the wall of the tubular element extends radially outward and in an axially reverse direction so as to form an expanded tubular section extending around a remaining tubular section of the tubular element. An annular space is defined between said expanded and remaining tubular sections. The expanded tubular section is axially extended by moving the remaining section downward relative to the expanded section so that said lower end portion of the wall bends radially outward and in an axially reverse direction. A tube is positioned in the annular space so that the tube extends substantially concentrically with the expanded section and is arranged to support at least one of the remaining section and the expanded tubular section.

Abstract: A swellable packer including a first retainer, a second retainer, a swellable element, a piston, and a piston lock. The second retainer is spaced axially apart from the first retainer. The swellable element is at least partially disposed between and fixed to the first and second retainers. The piston is fixed to the second retainer and configured to move the second retainer from a first position in which the swellable element is unstrained, to a second position in which the swellable element is strained. The piston lock is configured to releasably fix the second retainer in the second position.

Abstract: A therapeutic extension horseshoe is formed in a substantially u-shape from a resilient, flexile moldable material. A pliable, metal rod-like reinforcer is shaped to include an anterior segment from which opposing side segments continuously extend to caudal ends separated as an open heel. Ungulate and contact surfaces are formed to include an extension to one of said opposing side segments, which extension acts as an additional load bearing surface portion to facilitate a modification of a posture of a horse shod therewith. At least one wear insert is arranged in the extended load bearing surface portion to minimize surface wear to the moldable material. Depending on its orientation, the therapeutic extension horseshoe may be used to provide a lateral extension or a medial extension.

Abstract: A ceiling-only dry sprinkler system configured to address a storage occupancy fire event with a sprinkler operational area sufficient in size to surround and drown the fire. The system and method preferably provide for the surround and effect by activating one or more initial sprinklers, delaying fluid flow to the initial activated sprinklers for a defined delay period to permit the thermal activation of a subsequent one or more sprinklers so as to form the preferred sprinkler operational area. The sprinklers of the operational area are preferably configured so as to provide sufficient fluid volume and cooling to address the fire-event with a surround and drown configuration. The defined delay period is of a defined period having a maximum and a minimum. The preferred sprinkler system is adapted for fire protection of storage commodities and provides a ceiling only system that eliminates or otherwise minimizes the economic disadvantages and design penalties of current dry sprinkler system design.

Abstract: A fire suppression system for producing an inert gas mixture having a minimal amount of carbon monoxide, particulates, or smoke. The inert gas mixture may be generated by combusting a gas generant. The gas generant may be a composition that includes hexa(ammine)-cobalt(III)-nitrate. The fire suppression system also includes a heat management system to reduce a temperature of the inert gas mixture. In one embodiment, the system includes multiple gas generators and is configured to ignite the respective gas generant of each gas generator in a predetermined, time based sequential order. For example, the gas generant of each gas generator may be ignited in a sequential order at specified time intervals. Methods of extinguishing fires are also disclosed.

Abstract: A fire suppression composition includes starch, a pseudo-plastic, high yield, suspending agent, paraffin or olefin, and a neutralizer.

Abstract: A residue clearing apparatus for a shank of an agricultural implement includes a spoked wheel adapted for attachment to the implement such that the spoked wheel rotates about a wheel axis oriented substantially horizontal and perpendicular to an operating travel direction of the implement and forward of the shank. A drive is operative to rotate the spoked wheel. The spoked wheel is oriented such that ends of spokes of the spoked wheel pass above the ground forward of the shank, and such that the ends of the spokes of the spoked wheel pass adjacent to a front face of the shank. The spokes may be resiliently or pivotally mounted to the wheel.

Abstract: An upper link for a utility vehicle, in particular for an agricultural tractor having a hydraulic cylinder (34) for adjusting the upper link (32) and at least one fluid tank (36), to which the hydraulic cylinder (34) can be coupled, so that in a coupled condition, hydraulic fluid limited to a pre-determined volume can be exchanged between the hydraulic cylinder (34) and the fluid tank (36), and so that a piston (40) of the hydraulic cylinder (34) can move in floating fashion by a distance (ls) corresponding to the pre-determined volume in the hydraulic cylinder (34). The present invention further includes a front-end as well as to a back-end three-point hitch of a utility vehicle with two pivotally connected lower links and an upper link with such a fluid tank.

Abstract: A hydraulic control apparatus for a foldable farm implement has a first hydraulic control system is used to control weight transfer to a plurality of ground engaging tools mounted to stationary and wing frame sections of the farm implement. A second hydraulic system is used to fold and unfold the wing sections for placing the implement in a compact position for transport and storage. A hydraulic control is provided that interfaces with both hydraulic systems to control sequencing of the functions provided by the first and second hydraulic systems.

Abstract: A method for operating a driving tool, such as a fastening tool, that has a driver, a motor assembly with a motor and an output member, and an electrical power source. The methodology includes transmitting electrical power to the motor to rotate the output member and thereafter adjusting one or more control parameters if a rotational speed of the output member is not within a predetermined operating range.

Abstract: A hydraulic control system includes a first motor, a second motor, a pump operatively associated with the first motor, a first coupling valve operatively associated with the second motor, first parallel valves operatively associated with the second motor, and a first switching valve operatively associated with the first coupling valve and the first parallel valves. The first switching valve is configured to switch the first coupling valve between a first coupling state and a second coupling state opposite the first coupling state and to switch the first parallel valves between a first parallel state and a second parallel state opposite the first parallel state. While the first parallel valves are in the first parallel state a portion of the output of the first motor drives the second motor while the first parallel valves are in the second parallel state, the output of the pump drives the second motor.

Abstract: The present invention relates to a piling and drilling rig having a leader, a deflection apparatus for the deflection a rope which is pivotally connected to the head of the leader in a manner pivotable between at least one transport position and at least one working position, with the deflection apparatus being rotatable about an axis standing obliquely on the axis of extent of the leader.

Abstract: Systems and methods cancel or compensate for an echo or noise in borehole communication. The systems and methods provide a downhole tool configured to provide borehole communication via mud pulse telemetry. The downhole tool pulses drilling fluid to generate a first pressure pulse and a second pressure pulse. The first pressure pulse moves upwardly with respect to the downhole component and is encoded with data associated a downhole measurement. A sensor is electrically connected to and in communication with the downhole tool. The first sensor is adapted to detect a characteristic of the second pressure pulse in the drilling mud. A ideal pressure pulse or a correction pressure pulse is generated by a downhole tool or a mud pulse modulator to reduce or cancel noise of the second pressure pulse.

Abstract: A downhole tool includes a downlinking system deployed in a downhole tool body having an internal through bore. The downlinking system includes a differential pressure transducer configured to measured a pressure difference between drilling fluid in the internal through bore and drilling fluid external to the tool (in the borehole annulus). The differential transducer is electrically connected with an electronic controller (deployed substantially anywhere in the drill string) that is configured to receive and decode pressure waveforms.

Abstract: A coring tool for use in a borehole formed in a subterranean formation includes a tool housing with a coring aperture and a core receptacle. A coring bit is mounted within the tool housing and movable between retracted and extended positions by a series of pivotably connected extension link arms. Another set of link arms rotates the coring bit between coring and eject positions. The coring tool may also include a multi-column core storage magazine with shifters to move cores or core holders between columns. The coring tool may be used to measure core lengths during operation and facilitates retrieval of cores having larger lengths and diameters than conventional sidewall coring tools.

Abstract: A technique provides a drilling system and method in which a drilling assembly is delivered downhole on coiled tubing. The drilling assembly comprises a drill bit and a motor to rotate the drill bit for drilling of a borehole. A steerable system is used to steer the drill bit, thereby enabling formation of deviated boreholes.

Abstract: A tubular handling apparatus has a main rotating structural member pivotally movable between a first position and a second position, an arm interconnected to the main rotating structural member, and a gripper mechanism affixed to an end of the arm opposite the main rotating structural member. The gripper mechanism has a stab frame, a first gripper translatably attached to a side of the stab frame, and a second gripper translatably attached to the side of the stab frame below the first gripper. A connection bar is connected to the first and second grippers so as to translate the grippers for a substantially identical distance. A translating mechanism translates the grippers along the side of the stab frame.

Abstract: A turbine for use in a downhole drill string including an elongated casing defining an interior and a plurality of motor units in the interior. Each motor unit has a rotor and a stator. A torque transmission couplings connects each of the plurality of motor units to the drill string. The torque transmission couplings having flexible linkages. As a result, the power section has tight tolerances for the clearance at the tips of the rotors because the motor units are relatively stiff. The flexing normally obtained by bending the rotor shaft is accomplished and absorbed in the flexible linkages.

Abstract: In one aspect of the present invention, a downhole drill string assembly comprises a bore there through to receive drilling fluid. A turbine may be disposed within the bore and exposed to the drilling fluid. At least one flow guide may be disposed within the bore and exposed to the drilling fluid wherein the flow guide acts to redirect the flow of the drilling fluid across the turbine. The flow guide may be adjusted by an actuator. Adjustments to the flow guide may be controlled by a downhole telemetry system, a processing unit, a control loop, or any combination thereof. In various embodiments the turbine may comprise rotatable turbine blades.

Abstract: The downhole flow control means or downhole blowout preventor (downhole BOP) of the present invention is adapted for use during reverse circulation drilling with both concentric drill pipe and concentric coiled tubing. The downhole BOP comprises an inner tube member having an inner passage therethrough and an outer casing forming an annular passage between the inner tube member and the outer casing. The inner passage and the annular passage of the downhole BOP is in fluid communication with the inner passage and annular passage, respectively, of the concentric drill pipe or concentric coiled tubing. The downhole BOP further comprises two valve means, preferably a check valve and a ball valve, for closing off the annular passage and the inner passage of the downhole BOP, respectively. In a preferred embodiment, the downhole BOP further comprises an electric actuator for opening and closing the ball valve.

Abstract: A drill bit employing a plurality of abrasive, particulate-impregnated cutting structures extending upwardly from a bit face and defining a plurality of fluid passages therebetween. The plurality of cutting structures may be configured as spaced posts, or as blades with circumferentially extending grooves at radially spaced intervals. Superabrasive cutting elements in the form of thermally stable diamond are placed between the posts or in the grooves, depending on the cutting structure configuration, and at a reduced exposure. Additional cutting elements may be placed in a cone of the bit surrounding a centerline thereof. The blades may extend generally radially. Additionally, discrete protrusions may extend outwardly from at least some of the plurality of cutting structures. The discrete protrusions may be formed of thermally stable diamond.

Abstract: In a frictional drive device comprising a pair of drive disks each rotatably supported by a frame around a central axial line (A) in a mutually opposing relationship and configured to be individually rotatively actuated by a pair of actuators, a plurality of drive rollers arranged along an outer periphery of each drive disk so as to be rotatable along a prescribed plane of rotation, and an annular main wheel disposed at least approximately coaxially with respect to the central axial line and engaged by the drive rollers of the drive disks, the main wheel comprising an annular member and a plurality of driven rollers supported along the annular member so as to be rotatable around a tangential line of the annular member, each drive roller includes at least a pair of individually rotatable disk members coaxially disposed to each other and having different diameters, the diameters being selected so that the disk members engage the corresponding driven roller at outer peripheral parts thereof.

Abstract: A self-contained jettisonable tracked drive, which is intended for redundant propulsion of the multi-track vehicle. This drive enhanced survivability of military vehicle to perform under enemy fire and over anti-tank mines.

Abstract: One embodiment relates to a hybrid vehicle drive system for a vehicle including a first prime mover, a first prime mover driven transmission, a rechargeable power source, and a PTO. The hybrid vehicle drive system further includes a hydraulic pump in direct or indirect mechanical communication with the PTO. The hybrid vehicle drive system further includes an electric motor in direct or indirect mechanical communication with the hydraulic pump. The electric motor can receive power from the prime mover driven transmission through the PTO. The hydraulic pump can receive power from the electric motor when the electric motor rotates, the electric motor using power from the rechargeable energy source, or from the prime mover driven transmission through the PTO.

Abstract: The present invention discloses a hybrid power driving system, comprising: an engine, a clutch, a first shaft, a second shaft disposed parallel to the first shaft, a motor, an energy storage device, and an output gear. The engine may be connected with the first shaft via the clutch. The motor is connected with the second shaft directly or indirectly, and is electrically connected with the energy storage device. The first shaft has a first gear, a second gear and a first synchronizer, in which the first gear and the second gear are mounted on the first shaft via bearings respectively, and the first synchronizer is selectively engaged with the first gear or the second gear. The second shaft may have a third gear, a fourth gear and a second synchronizer, in which the third gear may be mounted on the second shaft via a bearing. The fourth gear may be fixed to the second shaft. And the second synchronizer may be selectively engaged with the third gear or the fourth gear.

Abstract: A wheelchair includes a frame, a chair, a pair of drive wheels, a pair of rear wheels, and a pair of front wheels. Each front wheel is part of a front arm assembly that is rigidly coupled to a drive via a mounting plate. The mounting plate is connected to the wheelchair frame by a pivot. The drives are transversely mounted. The batteries are disposed rearward of the drives. The wheelchair seat can be moved forward to provide access to the batteries without fully removing the wheelchair from the frame.

Abstract: Sealing members for vehicle radiator assemblies and vehicle radiator assemblies comprising sealing members are disclosed. In one embodiment, a sealing member for a radiator assembly includes a central panel, a mounting connector, and a flexible skirt element. The mounting connector may be formed in an upper edge of the central panel and extend across a width of the central panel. The mounting connector and the central panel are formed from a first polymeric material. The flexible skirt element may be formed in a lower edge of the central panel and extend across the width of the central panel. The flexible skirt element may be formed from a second polymeric material that is elastically deformable and recoverable. The first polymeric material may be relatively harder than the second polymeric material. The sealing member may be coupled to a radiator assembly installed in an engine compartment of a vehicle.

Abstract: A fuel cell vehicle includes a fuel cell, a radiator, a radiator fan, and a mounting frame. The mounting frame has an opposed member located on an axially extension of a rotating shaft of the radiator fan. When a compression load acting on the rotating shaft reaches a preset load, the rotating shaft of the radiator fan is compressed in an axial center direction along an axial center.

Abstract: A motor vehicle front end has a frame, which supports a heat exchanger and has an upper horizontal crosspiece connected to two uprights by means of connection elements, which are plastically deformable so as to allow the upper horizontal crosspiece to be lowered in the event of an accident; the upper horizontal crosspiece comprises a rigid rear portion and a plastically deformable, front portion which is made of plastic material and is fixed to the rigid rear portion.