A pile-driver is disclosed. The pile driver comprising a support member arranged in a transverse direction at or on a pile; a liquid chamber bounded on the underside by the support member and which further comprises one or more side walls and is configured to receive a liquid therein; one or more pressure build-up chambers, comprising: an upper part forming a combustion space; a lower part in fluid connection with the liquid chamber; an ignition mechanism configured to ignite a fuel present in the combustion space; and a fuel supply channel for carrying fuel into the combustion space; and a combustion product discharge channel for discharging combustion products after combustion; wherein the one or more pressure build-up chambers are arranged close to the side wall of the liquid chamber; and wherein the combustion product discharge channel is in fluid connection with a passage opening arranged in the side wall.

A pile-driver is disclosed. The pile driver comprising a support member arranged in a transverse direction at or on a pile; a liquid chamber bounded on the underside by the support member and which further comprises one or more side walls and is configured to receive a liquid therein; one or more pressure build-up chambers, comprising: an upper part forming a combustion space; a lower part in fluid connection with the liquid chamber; an ignition mechanism configured to ignite a fuel present in the combustion space; and a fuel supply channel for carrying fuel into the combustion space; and a combustion product discharge channel for discharging combustion products after combustion; wherein the one or more pressure build-up chambers are arranged close to the side wall of the liquid chamber; and wherein the combustion product discharge channel is in fluid connection with a passage opening arranged in the side wall.

An apparatus including an accumulator and a drive mechanism. The accumulator includes an energy storage apparatus with a first piston face configured to reversibly compress an energy storage medium and a second piston face forming at least part of an inner surface of a corresponding second fluid chamber reversibly expandable by movement of the second piston face. A third piston face forms at least part of an inner surface of a corresponding third fluid chamber reversibly expandable by the third piston face. The first, second and third piston faces are coupled together.

An apparatus including an accumulator and a drive mechanism. The accumulator includes an energy storage apparatus with a first piston face configured to reversibly compress an energy storage medium and a second piston face forming at least part of an inner surface of a corresponding second fluid chamber reversibly expandable by movement of the second piston face. A third piston face forms at least part of an inner surface of a corresponding third fluid chamber reversibly expandable by the third piston face. The first, second and third piston faces are coupled together.

A hydraulic impact hammer for striking a pile has a main housing, a ram supported, a coupler rod, a conversion housing, a hydraulic actuator, and a ram connector. The hydraulic actuator defines an actuator rod, a lifting head, and a lift connector. The lifting head defines an upper wall and a lower wall. The lift connector attaches the actuator rod to the upper wall of the lifting head. The ram connector attaches the coupler rod to the lower wall of the lifting head. Operation of the hydraulic actuator raises and lowers the ram to strike the pile.

A hydraulic impact hammer for striking a pile has a main housing, a ram supported, a coupler rod, a conversion housing, a hydraulic actuator, and a ram connector. The hydraulic actuator defines an actuator rod, a lifting head, and a lift connector. The lifting head defines an upper wall and a lower wall. The lift connector attaches the actuator rod to the upper wall of the lifting head. The ram connector attaches the coupler rod to the lower wall of the lifting head. Operation of the hydraulic actuator raises and lowers the ram to strike the pile.

The invention relates to a system (1) for use with a crane (4) on a surface vessel (3), comprising a crane tool (15) attached or attachable to a hoisting cable (5) of the crane (4) and one or more adaptors (16) attached or attachable to one or more tools (11-14, 25) for carrying out operations or to one or more components (2, 10), the crane tool (15) comprising a connector (17) and at least one of the adaptors (16) comprising a connector-counterpart (18).

The invention relates to a system (1) for use with a crane (4) on a surface vessel (3), comprising a crane tool (15) attached or attachable to a hoisting cable (5) of the crane (4) and one or more adaptors (16) attached or attachable to one or more tools (11-14, 25) for carrying out operations or to one or more components (2, 10), the crane tool (15) comprising a connector (17) and at least one of the adaptors (16) comprising a connector-counterpart (18).

A piling hammer is disclosed. The piling hammer includes a sleeve for securely fitting around a top end of a piling, a hammer located on top of the sleeve, a first and second pneumatic cylinder secured to the sleeve and hammer, a first and second valve pneumatically coupled to the first and second pneumatic cylinders, and a pneumatic controller configured for detecting that the hammer is at a bottom position, activating the first and second valves to route pressurized gas from the pressurized gas source to the first and second pneumatic cylinders, thereby causing the hammer to rise upwards, detecting that the hammer is at a top position, activating the first and second valves to expel pressurized gas from the first and second pneumatic cylinders, thereby causing the hammer to strike the sleeve and drive the piling downwards.

An alignment and installation jig for a screw anchor driving machine. The alignment and installation jig includes a laser target that can be moved from an alignment position to a driving position. The jig may also include one or more automated crimping assemblies to form permanent connections between overlapping foundation components while the machine is correctly oriented to assembly a truss foundation. One crimping assembly device may effect crimp joints between a foundation component held by the jig and overlapping upper ends of a pair of adjacent foundation legs. Second crimping assemblies may telescope down each leg to effect respective crimp joints between the lower end of the leg and the upper end of a driven foundation component.