Back to results
US 8,985,262 B2Granted
Construction vehicle equipped with exhaust aftertreatment device
AssigneeKomatsu Ltd.
InventorsShigeo Sekiya, Ryousuke Maeda, Muneo Harada
Life of this patent
Estimating the term…
Abstract
A construction vehicle adapted to travel using a wheel and equipped with an exhaust aftertreatment device to which a reductant is supplied is provided. At least a portion of the exhaust aftertreatment device including a front end thereof is located on a fender provided for the wheel. A supply pump adapted to supply the reductant and a reductant tank adapted to store the reductant are located ahead of the fender and below the exhaust aftertreatment device. The reductant tank is located below the supply pump.
Claims14
A construction vehicle having a front end and a rear end, the construction vehicle comprising:
- a wheel;
- a fender located vertically above the wheel;
- an exhaust aftertreatment device configured to receive supply of a reductant, wherein at least a portion of the exhaust aftertreatment device, including an upstream end thereof in a flow direction of an exhaust gas, is located on the fender;
- a supply pump adapted to supply the reductant, the supply pump being located forward of the fender and vertically below the exhaust aftertreatment device;
- a reductant tank adapted to store the reductant, the reductant tank being located forward of the fender and vertically below the exhaust aftertreatment device and the supply pump;
- an aftercooler located forward of the exhaust aftertreatment device;
- an aftercooler cooling fan located forward of the exhaust aftertreatment device;
- and
- a shield adapted to protect the supply pump from a cooling air from the aftercooler cooling fan.
6 more elements
A construction vehicle having a front end and a rear end, the construction vehicle comprising:
- a wheel;
- a fender located vertically above the wheel;
- an exhaust aftertreatment device configured to receive supply of a reductant, wherein at least a portion of the exhaust aftertreatment device, including an upstream end thereof in a flow direction of an exhaust gas, is located on the fender;
- a supply pump adapted to supply the reductant, the supply pump being located forward of the fender and vertically below the exhaust aftertreatment device;
- a reductant tank adapted to store the reductant, the reductant tank being located forward of the fender and vertically below the exhaust aftertreatment device and the supply pump;
- and
- a cab in which an operator rides, the cab being located alongside the fender, wherein the exhaust aftertreatment device comprises:
- a diesel particulate filter device adapted to capture a particulate matter in an exhaust gas from a diesel engine;
- and
- a selective catalytic reduction device to which the reductant is supplied,
- wherein the diesel particulate filter device is located on the fender, and
- wherein the selective catalytic reduction device is located downstream of the diesel particulate filter device in the flow direction of the exhaust gas and behind the cab.
9 more elements
A construction vehicle having a front end and a rear end, the construction vehicle comprising:
- a wheel;
- a fender located vertically above the wheel;
- an exhaust aftertreatment device configured to receive supply of a reductant, wherein at least a portion of the exhaust aftertreatment device, including an upstream end thereof in a flow direction of an exhaust gas, is located on the fender;
- an aftercooler located forward of the exhaust aftertreatment device;
- an aftercooler cooling fan located forward of the exhaust aftertreatment device;
- a supply pump adapted to supply the reductant, the supply pump being located forward of the fender and vertically below the exhaust aftertreatment device;
- and
- a reductant tank adapted to store the reductant, the reductant tank being located forward of the fender and vertically below the exhaust aftertreatment device and the supply pump;
- and
- a fuel tank unit having a fuel tank and an integrally formed housing, the fuel tank being located forwardly adjacent to the reductant tank, wherein
- the reductant tank is made of resin,
- the fuel tank is made of metal,
- the reductant tank is housed in the integrally formed housing of the fuel tank unit, and
- the supply pump is located in a shielding box adapted to cover an upper side of the integrally formed housing to block a cooling air from the aftercooler cooling fan.
11 more elements
A construction vehicle having a front end and a rear end, the construction vehicle comprising:
- a wheel;
- a fender located vertically above the wheel;
- a means for treating exhaust, wherein at least a portion of the means for treating exhaust, including an upstream end thereof in a flow direction of an exhaust gas, is located on the fender;
- a supply pump adapted to supply reductant to the means for treating exhaust, the supply pump being located forward of the fender and vertically below the means for treating exhaust;
- a reductant tank adapted to store the reductant, the reductant tank being located forward of the fender and vertically below the means for treating exhaust and the supply pump;
- an aftercooler located forward of the means for treating exhaust;
- an aftercooler cooling fan located forward of the means for treating exhaust;
- and
- a shield adapted to protect the supply pump from a cooling air from the aftercooler cooling fan.
6 more elements
A construction vehicle having a front end and a rear end, the construction vehicle comprising:
- a wheel;
- a fender located vertically above the wheel;
- a means for treating exhaust, wherein at least a portion of the means for treating exhaust, including an upstream end thereof in a flow direction of an exhaust gas, is located on the fender;
- a supply pump adapted to supply reductant to the means for treating exhaust, the supply pump being located forward of the fender and vertically below the means for treating exhaust;
- a reductant tank adapted to store the reductant, the reductant tank being located forward of the fender and vertically below the means for treating exhaust and the supply pump;
- and
- a cab in which an operator rides, the cab being located alongside the fender, wherein the means for treating exhaust includes an exhaust aftertreatment device, the exhaust aftertreatment device comprising:
- a diesel particulate filter device adapted to capture a particulate matter in an exhaust gas from a diesel engine;
- and
- a selective catalytic reduction device to which the reductant is supplied,
- wherein the diesel particulate filter device is located on the fender, and
- wherein the selective catalytic reduction device is located downstream of the diesel particulate filter device in the flow direction of the exhaust gas and behind the cab.
9 more elements
Dependencies are inferred from the claim text.