# US 10,308,111 B2 · Self-propelled construction machine > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,308,111 B2 - Document ID: US10308111B2 - Status: Granted - Kind: B2 - Application number: 15/936,906 - Filed: 2018-03-27 - Published: 2018-10-04 - Granted: 2019-06-04 - Earliest claimed: 2013-11-21 - Assignees: Wirtgen GmbH - Applicants: Wirtgen GmbH - Inventors: Peter Busley; Olaf Gaertner; Cyrus Barimani - Web page: https://patentgrep.com/patent/US10308111B2 ## CPC - B60K 15/063: Arrangement of tanks - B60K 13/04: concerning exhaust - B60K 15/073: Tank construction specially adapted to the vehicle (B60K15/077 takes precedence) - E01C 21/00: Apparatus or processes for surface {soil} stabilisation for road building or like purposes, e.g. mixing local aggregate with binder ({recycling in place or on the road involving soil stabilisation E01C23/065} ; stabilising soil under existing surfacing E01C23/10; soil-conditioning or soil-stabilising materials C09K17/00; soil consolidation in general E02D3/12) - E01C 23/065: {Recycling in place or on the road, i.e. hot or cold reprocessing of paving in situ or on the traffic surface, with or without adding virgin material or lifting of salvaged material; Repairs or resurfacing involving at least partial reprocessing of the existing paving (in situ mixing of hydraulic cement concrete E01C19/025; apparatus for in-plant recycling E01C19/1004, E01C19/1036)} - E01C 23/088: Rotary tools, e.g. milling drums {(for forming recesses to receive marking materials E01C23/0946)} - F01N 3/2066: {Selective catalytic reduction [SCR]} - B60Y 2200/41: Construction vehicles, e.g. graders, excavators - E01C 19/26: self-propelled or fitted to road vehicles ({E01C19/231, E01C19/235} , E01C19/27 - E01C19/29 take precedence) - E02D 3/12: Consolidating by placing solidifying or pore-filling substances in the soil (making piles E02D5/46; soil-conditioning or soil-stabilising materials C09K17/00; consolidation of ground around boreholes or wells E21B43/025) - F01N 2590/08: for heavy duty applications, e.g. trucks, buses, tractors, locomotives - F01N 2610/02: the substance being ammonia or urea - F01N 2610/1406: Storage means for substances, e.g. tanks or reservoirs - Y02A 50/20: Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters - Y02T 10/12: Improving ICE efficiencies - B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES - E01C: CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR (forming roads or like surfaces by compacting or grading snow or ice E01H) - F01N: GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES (arrangements in connection with gas exhaust of propulsion units in vehicles B60K13/00; combustion-air intake silencers specially adapted for, or arranged on, internal-combustion engines F02M35/00; protecting against, or damping, noise in general G10K11/16) - B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY - E02D: FOUNDATIONS; EXCAVATIONS; EMBANKMENTS (specially adapted for hydraulic engineering E02B); UNDERGROUND OR UNDERWATER STRUCTURES {(tunnels, tunnelling, mining E21)} - Y02A: TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract A self-propelled construction machine, comprises a machine frame, on which a working unit is arranged, and comprises a drive unit for driving the working unit. An additive, in particular a urea solution for operating an exhaust gas treatment system, is provided in an operating material tank which is integrated in the fuel tank or water tank of the construction machine. The integration of the operating material tank in the fuel tank or water tank does not necessitate any modifications to the machine frame. The dimensions of the construction machine can also remain unchanged, since the fuel tank does not take up any extra space on the machine frame if the dimensions of the fuel tank or water tank are maintained. ## Claims ### Claim 1 A self-propelled construction machine, comprising: a machine frame; a working unit arranged on the machine frame and configured to carry out work for a building operation; a drive unit arranged on the machine frame and configured to drive the working unit, the drive unit including at least one internal combustion engine; a first tank formed as an integral component of the machine frame, the first tank being either a fuel tank configured to hold fuel for the at least one internal combustion engine or a water tank; and an operating material tank configured as an exchangeable unit removable from the first tank so that the first tank has a first capacity when the operating material tank is removed from the first tank, and a second capacity smaller than the first capacity when the operating material tank is received in the first tank, the operating material tank being configured to hold operating material. ### Claim 2 (depends on 1) The construction machine of claim 1, wherein: the drive unit includes an exhaust gas treatment system; and the operating material tank is configured to hold a urea solution additive for the exhaust gas treatment system, the urea solution additive being the operating material. ### Claim 3 (depends on 1) The construction machine of claim 1, wherein: the first tank includes an access opening; and the operating material tank is received in the access opening and seals the access opening. ### Claim 4 (depends on 1) The construction machine of claim 1, wherein: the operating material tank includes a trough part and a cover part, and the cover part extends laterally beyond the trough part. ### Claim 5 (depends on 4) The construction machine of claim 4, wherein: the cover part includes a sealable tank opening of the operating material tank. ### Claim 6 (depends on 4) The construction machine of claim 4, wherein: the cover part of the operating material tank includes a peripheral rim; the cover part includes an outflow opening; and the machine further includes an outflow conduit connected to the outflow opening. ### Claim 7 (depends on 1) The construction machine of claim 1, wherein: the operating material tank includes at least one operating material removal opening; and the machine further includes at least one operating material removal unit inserted into the at least one operating material removal opening. ### Claim 8 (depends on 7) The construction machine of claim 7, wherein: the operating material tank includes a low point; and the at least one operating material removal unit includes a suction conduit extending toward the low point of the operating material tank. ### Claim 9 (depends on 1) The construction machine of claim 1, wherein: the first tank is the fuel tank having a fuel tank filling volume; and the operating material tank has an operating material tank filling volume up to 20% of the fuel tank filling volume. ### Claim 10 (depends on 9) The construction machine of claim 9, wherein: the operating material tank filling volume is in a range of from 5% to 15% of the fuel tank filling volume. ### Claim 11 (depends on 1) The construction machine of claim 1, wherein: the first tank is the water tank having a water tank filling volume; and the operating material tank has an operating material tank filling volume up to 20% of the water tank filling volume. ### Claim 12 (depends on 11) The construction machine of claim 11, wherein: the operating material tank filling volume is in a range of from 2% to 7% of the water tank filling volume. ### Claim 13 (depends on 1) The construction machine of claim 1, further comprising: front and rear running gears supporting the machine frame; and wherein the first tank is the fuel tank and the first tank is arranged between the front and rear running gears. ### Claim 14 (depends on 1) The construction machine of claim 1, further comprising: a control platform arranged on the machine frame and wherein the first tank is the fuel tank and the first tank is arranged below the control platform. ### Claim 15 (depends on 1) The construction machine of claim 1, wherein: the first tank is the fuel tank; the operating material tank includes an operating material tank opening; and the construction machine further includes a tread plate arranged above the fuel tank, the tread plate including a sealable access opening arranged above the operating material tank opening. ### Claim 16 (depends on 1) The construction machine of claim 1, wherein: the first tank is the fuel tank; and the drive unit is arranged on the machine frame behind the fuel tank with reference to a working direction of the construction machine. ### Claim 17 (depends on 16) The construction machine of claim 16, further comprising: a water tank arranged on the machine frame in front of the fuel tank. ### Claim 18 (depends on 1) The construction machine of claim 1, wherein: the first tank is the water tank; and the water tank is arranged in front of the working unit with reference to a working direction of the construction machine. ### Claim 19 (depends on 1) The construction machine of claim 1, wherein the construction machine is a road milling machine, a recycler, a stabiliser, a finisher or a roller machine. ### Claim 20 (depends on 1) The construction machine of claim 1, wherein: a difference between the first capacity and the second capacity is substantially equal to a volume of the operating material tank.