EXHAUST GAS CLEANING SYSTEM FOR ENGINEERING VEHICLE
First Claim
1. An exhaust gas cleaning system for an engineering vehicle,said engineering vehicle including:
- a diesel engine;
driven bodies used for work, the driven bodies being driven by the motive power of the engine;
first operation means for instructing the operation of the driven bodies used for work; and
second operation means that is selectively operated between a first position (A) at which the instruction by the first operation means is enabled and a second position (B) at which the instruction by the first operation means is disabled,said exhaust gas cleaning system including;
a filtering unit disposed in an exhaust system of the engine, the filtering unit including a filter for collecting particulate matter included in an exhaust gas; and
regeneration units for increasing the temperature of the exhaust gas to burn off and remove particulate matter deposited in the filter,wherein the exhaust gas cleaning system comprising;
third operation means for instructing start of the operation of the regeneration units; and
a regeneration control unit for starting the operation of the regeneration units, when the second operation means is switched to the second position (B), and when the third operation means is operated to instruct the start of the operation of the regeneration units.
1 Assignment
0 Petitions
Accused Products
Abstract
An exhaust gas cleaning system for an engineering vehicle, such as a hydraulic excavator, is capable of performing manual regeneration control of a regeneration fuel injector 40 that is started only under the following conditions: a manual regeneration starting switch 39 is enabled; an engine control dial 2 commands a low-speed idle revolution speed; and a gate lock lever 22 is switched to a second position B at which generation of control pilot pressures a through f by use of remote control valves 25, 26, and 27 is disabled. Even when the manual regeneration control is being executed, if the gate lock lever 22 is switched to a first position A, the manual regeneration control immediately ends. As a result, the manual regeneration control of a filter for collecting particulate matter included in the exhaust gas and the operation of the work system do not influence each other.
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Citations
5 Claims
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1. An exhaust gas cleaning system for an engineering vehicle,
said engineering vehicle including: -
a diesel engine; driven bodies used for work, the driven bodies being driven by the motive power of the engine; first operation means for instructing the operation of the driven bodies used for work; and second operation means that is selectively operated between a first position (A) at which the instruction by the first operation means is enabled and a second position (B) at which the instruction by the first operation means is disabled, said exhaust gas cleaning system including; a filtering unit disposed in an exhaust system of the engine, the filtering unit including a filter for collecting particulate matter included in an exhaust gas; and regeneration units for increasing the temperature of the exhaust gas to burn off and remove particulate matter deposited in the filter, wherein the exhaust gas cleaning system comprising; third operation means for instructing start of the operation of the regeneration units; and a regeneration control unit for starting the operation of the regeneration units, when the second operation means is switched to the second position (B), and when the third operation means is operated to instruct the start of the operation of the regeneration units. - View Dependent Claims (2, 3, 4, 5)
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Specification