Patent application number | Description | Published |
20080219767 | ROAD FINISHER - A road finisher with an internal combustion engine, an engine exhaust pipe provided with a muffler having an enlarged diameter with respect to the engine exhaust pipe, and a pipe for discharging emissions of the building material is described. For a constructively simple embodiment easy to be mounted it is suggested to pass the emission pipe without mixing through the muffler and to design the muffler as mounting for the emission pipe. | 09-11-2008 |
20090102282 | CRAWLER TRACK - In a crawler track comprising at least one guide wheel and caster wheels at a track carrier, at least one driving wheel for the track, and a guide wheel tensioning device including at least one tensioning member which acts on the guide wheel via a tensioning lever supported at the track carrier, the guide wheel is provided in a guide part which is exclusively linearly moveable and is laterally supported in the track carrier with a slide block arranged between the guide part and the tensioning lever, which slide block can slide crosswise and relatively to the linear direction of movement of the guide part while transmitting the tensioning force substantially parallel to the linear direction of movement of the guide part. | 04-23-2009 |
20100326067 | SELF-PROPELLED MACHINE - In a self-propelled machine F for processing paving material, the machine having a liquid cooled combustion engine M and at least one hydraulic circuit H containing hydraulic pumps | 12-30-2010 |
20100329783 | ROAD FINISHER WITH AUTOMATIC ENGINE CONTROLLER - The invention relates to a self-propelling machine for processing bituminous or concrete pavement material, in particular a road finisher or a feeder. The machine comprises an internal combustion engine as a primary drive source, a controller for the engine, said controller receiving control signals, at least one additional drive unit for functional and operational components of the machine as well as at least one hydraulic circuit comprising a hydraulic medium reservoir. The invention is characterized in that the controller is configured for automatically causing starting and/or stopping of the engine in response to receipt of at least one specific control signal. | 12-30-2010 |
20110123267 | METHOD FOR LAYING DOWN A PAVEMENT, A SCREED AND A ROAD PAVER - In a method for laying down a pavement consisting of paving material with a screed of a road paver, in which a compaction unit, particularly a tamper, pre-compacts the paving material at cyclical work cycles with selectable stroke and selectable frequency while the pavement having a selectable pavement thickness) is in the process of being laid down at a selectable paving speed, at least the stroke is automatically adjustable in response to paving parameters, such as at least the paving speed and/or the pavement thickness, along a characteristic curve or in a characteristic map. In the screed the compaction unit comprises an adjusting mechanism which is operable during the ongoing paving work for adjusting the stroke of the compaction unit. | 05-26-2011 |
20110123270 | TAMPER OF A SCREED OF A ROAD FINISHING MACHINE - In a tamper of a screed having an eccentric shaft comprising an eccentric section and an eccentric bushing arranged thereon which is rotatably mounted in a connecting rod driving a tamper bar, the stroke of the tamper bar is adjustable by a relative rotation between the eccentric shaft and the eccentric bushing, and a tappet and a preselection area with two tappet stop positions defining two different tamper bar strokes are functionally provided between the eccentric shaft and the eccentric bushing, so that the tappet can be adjusted without tools to each tappet stop position by a reversal of the direction of rotation of the eccentric shaft to switch between the two strokes. | 05-26-2011 |
20110126533 | METHOD FOR CLOSED-LOOP POWER CONTROL OF A ROAD FINISHING MACHINE OR FEEDER AND A ROAD FINISHING MACHINE OR FEEDER COMPRISING THE SAME - In the hydrostatic working operation of a road finishing machine or a feeder which comprises a primary power plant with an internal combustion engine (M) and several hydraulic variable displacement pumps, which are hydraulically connected to hydraulic motors of working components, and which possesses a computerized control device, the internal combustion engine is operated within its engine-specific characteristic map in response to the load condition by dynamic speed adaptation in a characteristic zone with optimal consumption, and the displacements (V | 06-02-2011 |
20110229263 | METHOD FOR CONTROLLING THE PROCESS WHEN PRODUCING A PAVING MAT AND ROAD FINISHER - A method for controlling the process laying a layer in a selectable paving thickness with a road finisher in which the laying process is automatically controlled in that a target value for the paving thickness is entered into an automatic closed-loop control system and communicates the actuating signals to such members and the signals. A road finisher has a computerized, either fully automatic or operator aided closed-loop control system for the direct control of the laying process with control of the paving thickness to a predetermined target value and for the optimization of the operating point of the pre-compaction system, which is connected to sensors at least for the acquisition of the setting angle of the screed, of the paving thickness and of the laying rate. | 09-22-2011 |
20110229264 | SYSTEM AND METHOD OF APPLYING A ROAD SURFACE - A system for applying a road surface includes a plurality of operational components each with one or a plurality of adjustment parameters and an open loop control unit from which the adjustment parameters are communicated to the operational components. The system has a closed-loop control unit for determining the optimum adjustment parameters for obtaining at least one specified target value taking into account measurement quantities, for producing a command data set representing a plurality of optimum adjustment parameters and for communicating this command data set to the open loop control unit. The invention also relates to a method for controlling a system for the application of a road surface, in particular a road finisher. | 09-22-2011 |
20110229266 | METHOD AND ROAD FINISHER FOR LAYING A COMPACTED FINISHING LAYER - A method of laying a finishing layer with a road finisher F having a screed B, whereby the screed, equipped with a tamper device T and a smoothing plate, at least compacts and superficially smoothes the finishing layer, and the stroke and/or the frequency of the tamper device T are remotely varied for laying a finishing layer with a paving thickness and/or laying rate V which vary over the pave width and transversely to the working direction R within the pave width. A road finisher having a screed suitable for implementing the method set forth above wherein the road finisher or screed has an adjustment device for the remotely actuated local variation of at least the stroke of the tamper device within the pave width. | 09-22-2011 |
20120031724 | ROAD FINISHING MACHINE AND METHOD OF OPERATING A ROAD FINISHING MACHINE - In a road finishing machine with a primary power plant and a power transfer to a hydraulic pump and/or a generator for supplying power to hydraulically or electrically operated functional components, the power transfer comprises at least one clutch that can be optionally engaged and disengaged, and a clutch control device is provided by means of which, depending on at least the operator guidance and/or a detected clutch loading situation, a disengagement delay (Δt) automatically overriding the operator guidance can be set, and/or a clutch shifting number restriction can be set by means of a detection interval (dt) moving along in time. The clutch control device actually engages, within the frame of the respective overriding control strategy, the clutch only after the disengagement delay (Δt) has lapsed, if no operation command to the contrary is present, and/or keeps the clutch first engaged, although an operation command to the contrary is present. | 02-09-2012 |
20120263530 | METHOD AND SYSTEM FOR APPLYING A ROAD SURFACE - A method and a system for applying a road surface using a mixing plant for producing laying material, a road finishing machine processing the laying material to a road surface, and a supply chain transporting the laying material from the mixing plant to the road finishing machine. Request commands are transmitted from the road finishing machine to the mixing plant and/or to the supply chain, and, depending on these request commands, the production rate of the laying material in the mixing plant, the temperature of the laying material produced in the mixing plant, and/or the mass flow of laying material supplied to the road finishing machine per time unit by means of the supply chain are adjusted. | 10-18-2012 |
20120263531 | SYSTEM AND METHOD FOR LAYING DOWN AND COMPACTING AN ASPHALT LAYER - In a system for laying down an asphalt layer made of asphalt material, and having a road paver having a screed with compacting tools, a compacting device and a mixer, an electronic material density module is provided in or for the road paver. The electronic material density module obtains data during the laying process regarding at least the actual degree of compaction of the asphalt layer produced in the area of at least one compacting tool and evaluates and/or documents these data at least for operational optimisation and/or operational monitoring of the road paver and/or compacting device and/or mixer. The data obtained is communicated to the compacting device that produces the final degree of compaction of the asphalt layer based on the data and on the actual degree of compaction determined at the screed. | 10-18-2012 |
20120263532 | METHOD AND ROAD PAVER FOR LAYING DOWN A PAVEMENT - Method for laying down a pavement with a road paver, in which machine parameters are coordinated at least with paving requirements of the pavement by means of a controller and in which at least one machine parameter set is created and stored in advance for a paving requirement determined before the paving, the parameter set allowing a high level of machine efficiency and pavement quality to be expected and/or has already produced the same for an at least similar earlier paving requirement of an already laid down pavement, and the pavement on the basis of the parameter set created in advance. The road paver has a controller with an on-board computer connected to a sensor system and an actuating system, and includes memories and a retrieval and/or comparison section for triggering the actuating system for implementing the machine parameters of the parameter set created in advance. | 10-18-2012 |
20120265371 | SYSTEM FOR CONTROLLING CONSTRUCTION SITE VEHICLES - A system for controlling construction site vehicles has a plurality of construction site vehicles and a control room. Data can be transmitted on communication channels between the control room and the construction site vehicles. In the control room, at least one digital map is stored in which at least one additional piece of information is stored for individual road sections, in addition to the route of the respective road section. A navigation module is provided and designed to generate, with reference to the at least one digital map, navigation recommendations for the construction site vehicles. | 10-18-2012 |
20120299270 | PUSHING DEVICE - A pushing device that can be attached to a road paver or feeder vehicle. The pushing device is attachable to a chassis component of the road paver or the feeder vehicle and comprises a pushing unit that is attached in a movable manner to the chassis component by means of at least a spring-absorber unit. The pushing unit can be displaced relative to the chassis component in a first direction and a second direction, whereby the spring-absorber unit has a greater spring rate during a movement of the pushing unit in the first direction than in the second direction. | 11-29-2012 |
20120305232 | CONSTRUCTION MACHINE WITH AUTOMATIC FAN ROTATIONAL SPEED REGULATION - The present invention describes a construction machine with a drive unit and with a cooling system that comprises a fan. The fan is connected to the drive unit by means of a controllable viscous coupling, whereby the viscous coupling can be adjusted in such a way that a required fan rotational speed is set on the output side. The invention furthermore describes a method for the automatic fan rotational speed regulation for a cooling system in a construction machine. | 12-06-2012 |
20120321384 | ROAD PAVER WITH LAYER THICKNESS MEASURING DEVICE - A road paver with a movable screed and with a layer thickness measuring device, which includes at least two sensors. The sensors are formed to carry out a distance measurement to the paving plane at intervals to determine a distance between the sensor and a point on the surface of the plane, said point being registered by the sensor. One of the two sensors defines a coordinate system. The layer thickness measuring device is formed to add as vectors the distance to the plane measured by the sensor that defines the coordinate system and a movement, relative to the plane and resulting from the driving of the road paver, of the coordinate system that is defined by the one sensor. In this way, a first vector can be determined which, together with a second vector, is used by the measuring device for determining the layer thickness of the laying material. | 12-20-2012 |
20120321386 | ROAD PAVER WITH LAYER THICKNESS MEASURING DEVICE - Road paver with a towing machine and a movable screed and with a measuring device that is provided for determining a layer thickness of a road pavement that has been newly laid by the screed. The measuring device is formed to determine the layer thickness at an intended location, seen relative to a direction of travel, behind a rear edge of the screed, whereby the measuring device is provided on the road paver such that the layer thickness can be determined independently of a geometric shape and/or a movement of the screed. | 12-20-2012 |
20130089375 | CONSTRUCTION MACHINE WITH AUTOMATIC FAN ROTATIONAL SPEED REGULATION - The present invention relates to a construction machine with automatic fan rotational speed regulation. The construction machine includes at least one electric motor that is connected functionally to a respective fan and a control unit formed for the purpose of registering operation-specific data. The control unit is configured for the purpose of regulating, depending on the operation-specific data, an electric output of the respective electric motor in order to adjust a desired target fan rotational speed on the fan. | 04-11-2013 |
20130195550 | ROAD FINISHING MACHINE WITH CONTROLLABLE CONVEYOR DEVICES - The invention relates to a road finishing machine with a controllable longitudinal conveyor device and a transverse conveyor device for mixed laying material disposed in the rear in the direction of motion. The road finishing machine furthermore comprises a control unit for adjusting a delivery rate of the longitudinal conveyor device and/or the transverse conveyor device. The control unit is connected with a sensory mechanism for determining a mixed laying material quantity or rate and adjusts the delivery rate in response to a signal from the sensory mechanism representing the mixed laying material quantity or rate. The control unit can be pilot controlled in response to laying parameters by a pilot control unit. | 08-01-2013 |
20130287495 | ROAD FINISHER WITH AUTOMATIC ENGINE CONTROLLER - The invention relates to a self-propelling machine for processing bituminous or concrete pavement material, in particular a road finisher or a feeder. The machine comprises an internal combustion engine as a primary drive source, a controller for the engine, said controller receiving control signals, at least one additional drive unit for functional and operational components of the machine as well as at least one hydraulic circuit comprising a hydraulic medium reservoir. The invention is characterized in that the controller is configured for automatically causing starting and/or stopping of the engine in response to receipt of at least one specific control signal. | 10-31-2013 |
20140305717 | TRACK-SUPPORTING ROLLER ASSEMBLY FOR A CRAWLER CHASSIS - A track-supporting roller assembly, according to the disclosure, for supporting a crawler track of a crawler chassis includes a bearing unit and a track-supporting roller rotatably coupled to the bearing unit. The track-supporting roller includes at least one supporting body made of plastic. The supporting body serves as a damper and prevents a metal-on-metal contact between track chain links of the crawler track and the track-supporting roller. The track-supporting roller assembly according to the disclosure ensures a reduced noise development in the crawler chassis. At the same time, it is possible to also reduce the wear of the track-supporting rollers to a considerable extent. | 10-16-2014 |
20140363230 | PAVING SCREED FOR A ROAD FINISHER - The disclosure relates to a paving screed to be employed on a road finisher. The paving screed according to the disclosure comprises a base screed, the operating width of which may be modified by protractable extending units and/or separate removable bolt-on extensions. The paving screed also includes a plurality of side plates, each being mountable on an outer end of the base screed or an extending unit or a bolt-on extension and which delimit the operating width. At least one reference element for determining the operating width is provided on one of the side plates, and that the at least one reference element is detectable by one or more sensor units when the side plates are each mounted on the outer ends of the base screed, an extending unit or a bolt-on extension. | 12-11-2014 |