Abstract: A downhole double-acting positive displacement pump has a housing with a first end 1 and a second end, the housing having a pump inlet, a pump outlet arranged closer to the second end, a first chamber arranged in the housing and having a first outlet in fluid communication with the pump outlet, a first piston movable in the first chamber for pressing fluid out of the pump outlet, and a drive to reciprocate the first piston. The first piston divides the first chamber into a first and second chamber parts, the first chamber part having the first outlet and a first inlet, a first valve being arranged at the first outlet, a second valve being arranged in the first inlet. The second chamber part has a second outlet in fluid communication with the pump outlet and a second inlet, a third valve being arranged in the second outlet, and a fourth valve being arranged in the second inlet.

Abstract: A downhole tool, for removing a restriction in a well tubular metal structure having a wall and an inner diameter, has a tool axis and a tool body having a first part and a second part, an electrical motor arranged in the first part for rotating a rotatable shaft, and a core bit arranged in the second part and having a first end connected with the rotatable shaft and a second end having a cutting edge. The second part of the downhole tool further includes a locator for locating the rim section, the locator being rotable with the core bit until the locator locates the rim section and a threshold value is reached.

Abstract: A bus with a low and thin passenger platform adapted for standing passengers, seat places are foreseen as well. The bus is an articulated bus with two or more units. It includes a passenger compartment, left steering modules and right steering modules. Each of these steering modules includes: a wheel with a rotation axis, a steering knuckle with an upper pivot joint and a lower pivot joint, a steering actuator for pivoting the corresponding steering knuckle about the upper pivot joint and the lower pivot joint. The bus further including a passenger platform delimiting the passenger compartment and transversally joining the left steering module and the right steering module, and the passenger platform being vertically disposed, at least partially, between the rotation axes of the wheels and the lower pivot joints.

Abstract: A steering unit for a vehicle, notably a bus. The steering unit is coupled with a suspension system and comprises: a support formed by a passenger platform and a wheel housing, a longitudinal axis, a steering knuckle with an in-wheel engine defining a transversal rotation axis which is arranged transversally with respect to the longitudinal axis, an actuator mechanism adapted for pivoting the steering knuckle. The steering knuckle further comprises a lever which is linked to the actuator mechanism and which includes a transversal portion extending transversally along the in-wheel engine. The steering unit is adapted for an articulated bus with at least two bodies, said bodies each exhibits four or eight identical and independent steering units.

Abstract: A downhole completion system includes a well tubular metal structure having an inner face, and a first, second and third annular barriers, each annular barrier having a tubular metal part mounted as part of the well tubular metal structure, an expandable metal sleeve surrounding the tubular metal part, each end section of the expandable metal sleeve being connected with the tubular metal part, an annular barrier space between the tubular metal part and the expandable metal sleeve, and an expansion opening in the tubular metal part and a fluid channel fluidly connecting the expansion opening and the annular barrier space through which pressurised fluid passes for expanding the expandable metal sleeve and bringing the annular barrier from an unexpanded position to an expanded position. The second annular barrier is arranged in between the first annular barrier and the third annular barrier, and the second annular barrier is configured to expand at a lower pressure than the first and third annular barriers.

Abstract: The present invention relates to a downhole packer assembly for expansion of a metal sleeve, such as a metal patch, in a well downhole in a well tubular metal structure, comprising a body part and an expandable tubular element surrounding the body part and each end of the expandable tubular element being connected with the body part, providing an expandable space therebetween, the expandable space being fillable with liquid during expansion, the expandable tubular element having an outer face and an inner face, the expandable tubular element comprising an elastomeric or rubber material having a friction coefficient, wherein the expandable tubular element comprises a friction-enhancing material providing a higher friction coefficient of the outer face than the friction coefficient of the elastomeric or rubber material. The invention also relates to a downhole system comprising the downhole packer assembly and a positive displacement pump for expanding the expandable tubular element.

Abstract: An articulated electric bus includes two units with: a passenger compartment including a main floor forming a low and thin platform with a planar surface extending over the majority of the width of the passenger compartment, a wheel housing adjacent to the planar surface, a longitudinal row of seat places on the wheel housing, and a driving wheel which is housed in the wheel housing under the longitudinal row of seats. The driving wheel defines a rotation axis and includes an electric engine, and a rim with a rim top above the planar surface. The driving wheel is vertically movable with respect to the planar surface, and the wheel housing actually receives a pair or a couple of driving wheels.

Abstract: The present invention relates to a downhole line separation tool for submerging into a casing in a wellbore, the downhole line separation tool having a first tool end, a second tool end and a tool axis, comprising a tool housing having a first housing part and a second housing part, an electrical motor arranged within the first housing part and powered through a wireline connected to the first tool end, an annular separation element having an element end facing away from the first tool end and being rotatably connected within the second housing part, and a rotatable shaft arranged within the second housing part and rotated by the electrical motor for rotating the annular separation element, wherein the second housing part comprises a sleeve part having a sleeve end, at least part of the annular separation element projecting from the sleeve end further away from the first tool end than the sleeve, the second housing part comprising at least one projecting part extending further away from the first tool end tha

Abstract: A downhole tool, for removing a restriction in a well tubular metal structure having a wall and an inner diameter, has a tool axis and a tool body having a first part and a second part, an electrical motor arranged in the first part for rotating a rotatable shaft, and a core bit arranged in the second part and having a first end connected with the rotatable shaft and a second end having a cutting edge. The second part of the downhole tool further includes a locator for locating the rim section, the locator being rotable with the core bit until the locator locates the rim section and a threshold value is reached.

Abstract: The present invention relates to an annular barrier to be expanded in an annulus between a well tubular metal structure and an inside wall of a borehole downhole for providing zone isolation between a first zone and a second zone of the borehole, comprising a tubular metal part for mounting as part of the well tubular metal structure, an expandable metal sleeve surrounding the tubular metal part, each end of the expandable metal sleeve being connected with the tubular metal part, an expandable space between the expandable metal sleeve and the tubular metal part, and an expansion opening in the tubular metal part through which fluid enters in order to expand the expandable metal sleeve, wherein the annular barrier further comprises a pressure-intensifying unit. The invention also relates to a downhole system comprising a well tubular metal structure and an annular barrier.

Abstract: A bus, notably an articulated low platform bus with an electric drive or a hybrid drive. The bus includes a vehicle detection module configured for detecting vehicle such as a car, a van or a motorbike, a height obtaining module adapted for obtaining the height of the detected vehicle, and a lighting system with a lighting surface adapted for displaying a luminous picture at least partially or totally above the height of the detected vehicle. The height of the luminous picture is adapted depending on the size of the vehicle for visibility purposes.

Abstract: A downhole tool for determining laterals in a borehole wall or a borehole casing, comprising a tool housing extending along a longitudinal axis and having a circumference perpendicular to the longitudinal axis and a plurality of sonic transceivers. Each sonic transceiver transmitting sonic signals from the housing and receiving sonic signals reflected from the borehole wall or borehole casing in a predefined angular segment. The sonic transceivers are arranged along the circumference of the tool housing having a mutual distance and are capable of transmitting sonic signals radially away from the tool housing in an entire central angle of 360 degrees towards the borehole wall or borehole casing. During a pulse time, one sonic transceiver transmits a sonic signal in the predefined angular segment of that sonic transmitter, and one sonic transceiver, during a subsequent echo time, receives a reflected sonic signal from the borehole wall or borehole casing.

Abstract: The present invention relates to a downhole tool for removing a restriction in a well tubular metal structure having a wall and an inner diameter, the restriction partly blocking the inner diameter, creating an opening defined at least partly by a rim section of the restriction, the downhole tool having a tool axis and comprising a tool body having a first part and a second part, an electrical motor arranged in the first part for rotating a rotatable shaft, a core bit arranged in the second part and having a first end connected with the rotatable shaft and a second end having a cutting edge, wherein the second part of the downhole tool further comprises a locator for locating the rim section, a collecting means for collecting part of the restriction to be cut out by the cutting edge, the locator and the collecting means are rotating with the core bit until the locator locates the rim section and a threshold value is reached.

Abstract: An electric bus exhibiting a seat arrangement. The electric bus includes a side wall, a wheel with an electric engine disposed in the rim, a seat with a seat base and a leg area. The leg area is below the seat base and vertically level with the wheel. The electric bus also includes an electric energy storing device powering the electric engine of the wheel and arranged transversally between the side wall and the leg area of the seat.

Abstract: The present invention relates to a downhole completion system for isolating several zones in a well having a top, comprising a well tubular metal structure arranged in a borehole having an inner face in the well, and a first annular barrier, a second annular barrier and a third annular barrier, each annular barrier comprising a tubular metal part, the tubular metal part being mounted as part of the well tubular metal structure, an expandable metal sleeve surrounding the tubular metal part, each end section of the expandable metal sleeve being connected with the tubular metal part, an annular barrier space between the tubular metal part and the expandable metal sleeve, and an expansion opening in the tubular metal part and a fluid channel fluidly connecting the expansion opening and the annular barrier space through which pressurised fluid passes for expanding the expandable metal sleeve and bringing the annular barrier from an unexpanded position to an expanded position, wherein the second annular barrier is

Abstract: The present invention relates to a downhole packer assembly for expansion of a metal sleeve, such as a metal patch, in a well downhole in a well tubular metal structure, comprising a body part and an expandable tubular element surrounding the body part and each end of the expandable tubular element being connected with the body part, providing an expandable space therebetween, the expandable space being fillable with liquid during expansion, the expandable tubular element having an outer face and an inner face, the expandable tubular element comprising an elastomeric or rubber material having a friction coefficient, wherein the expandable tubular element comprises a friction-enhancing material providing a higher friction coefficient of the outer face than the friction coefficient of the elastomeric or rubber material. The invention also relates to a downhole system comprising the downhole packer assembly and a positive displacement pump for expanding the expandable tubular element.

Abstract: A bus structure, optionally an electric bus structure for one hundred passengers or more. The bus structure includes: a passenger compartment, a side wall with a vertical post and delimiting the passenger compartment, a horizontal support, a vertical handle—or stanchion—along the vertical post and projecting from the horizontal support, a strut projecting from the vertical post to the horizontal support, and a floor structure of reduced thickness. The strut defines a triangle with the wheel housing and the vertical post. The strut is straight or curved.

Abstract: The present invention relates to a plug and abandonment system for plugging and abandoning a well having a top, comprising a first annular barrier having a first end and a second end, the first end comprising a first ball seat and the second end being connected with a first disconnectable area, a second annular barrier having a first end and a second end, the first end comprising a second ball seat and being connected with the first disconnectable area, a work string, such as drill pipe, extending from a first string end to the top of the well, the first string end being disconnectably connected with the second end of the second annular barrier, wherein each of the annular barriers comprises an expandable metal sleeve being connected to at least one tubular part forming a tubular bore for allowing liquid and cement to flow through the annular barriers. Moreover, the invention also relates to a plug and abandonment method for providing a safe plug and abandonment of a well having at least one production zone.

Abstract: The present invention relates to a downhole double-acting positive displacement pump for delivering an increased pressure downhole at a location in a well to perform an operation, the well producing hydrocarbon-containing fluid streaming up the well, comprising a housing having a first end closest to a top of the well and a second end opposite the first end, the housing having a pump inlet and a pump outlet, where the pump outlet is arranged closer to the second end than to the first end, a first chamber arranged in the housing, the first chamber having a first outlet in fluid communication with the pump outlet, a first piston movable in the first chamber for pressing fluid out of the pump outlet, and a driving means for driving the first piston in a reciprocating movement between a first direction and an opposite second direction in the first chamber, and wherein the first piston divides the first chamber into a first chamber part and a second chamber part, the first chamber part comprising the first outlet

Abstract: The present invention relates to an annular barrier to be expanded in an annulus between a well tubular metal structure and an inside wall of a borehole downhole for providing zone isolation between a first zone and a second zone of the borehole, comprising a tubular metal part for mounting as part of the well tubular metal structure, an expandable metal sleeve surrounding the tubular metal part, each end of the expandable metal sleeve being connected with the tubular metal part, an expandable space between the expandable metal sleeve and the tubular metal part, and an expansion opening in the tubular metal part through which fluid enters in order to expand the expandable metal sleeve, wherein the annular barrier further comprises a pressure-intensifying unit. The invention also relates to a downhole system comprising a well tubular metal structure and an annular barrier.