Apparatus for heating the dump body of a dump truck having a diesel particulate filter
First Claim
1. A system for providing heat to a dump body of a dump truck using exhaust, comprising a diesel engine, an exhaust stack having a venting end, a diesel particulate filter having an input and an output for exhaust gas, exhaust gas from said diesel engine being routed to the input of the diesel particulate filter, and, an exhaust temperature control module, the exhaust gas output from said diesel particulate filter being routed to said exhaust temperature control module, said exhaust temperature control module comprising:
- i) temperature sensing means, said temperature sensing means including a first temperature sensor, and, ii) exhaust-diverting means, said exhaust-diverting means including a movable diverter member;
wherein said exhaust temperature control module controls;
i) said diverter member for movement to a position where exhaust gas is diverted to the dump body when the exhaust gas temperature is sensed by said temperature sensing means to be at or below a predetermined threshold temperature, and, ii) said diverter member for movement to a position where the exhaust gas bypasses the dump body when the exhaust gas temperature sensed by said temperature sensing means exceeds the predetermined threshold temperature.
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Accused Products
Abstract
A system for providing heat to the dump body of a dump truck is disclosed. The disclosed system is suitable for use with truck equipped with a diesel particulate filter. When enabled, the system controls the exit path of exhaust gas such that it is routed to the dump body during normal operating conditions. In one embodiment, when the diesel particulate filter enters a regeneration cycle, high heat is produced. The system then routes the exhaust gas as to bypass the dump body to avoid heat damage from the higher temperature exhaust gas.
32 Citations
18 Claims
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1. A system for providing heat to a dump body of a dump truck using exhaust, comprising a diesel engine, an exhaust stack having a venting end, a diesel particulate filter having an input and an output for exhaust gas, exhaust gas from said diesel engine being routed to the input of the diesel particulate filter, and, an exhaust temperature control module, the exhaust gas output from said diesel particulate filter being routed to said exhaust temperature control module, said exhaust temperature control module comprising:
- i) temperature sensing means, said temperature sensing means including a first temperature sensor, and, ii) exhaust-diverting means, said exhaust-diverting means including a movable diverter member;
wherein said exhaust temperature control module controls;
i) said diverter member for movement to a position where exhaust gas is diverted to the dump body when the exhaust gas temperature is sensed by said temperature sensing means to be at or below a predetermined threshold temperature, and, ii) said diverter member for movement to a position where the exhaust gas bypasses the dump body when the exhaust gas temperature sensed by said temperature sensing means exceeds the predetermined threshold temperature. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
- i) temperature sensing means, said temperature sensing means including a first temperature sensor, and, ii) exhaust-diverting means, said exhaust-diverting means including a movable diverter member;
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18. A system for providing heat to the dump body of a dump truck using exhaust, comprising a diesel engine, an exhaust stack having a venting end, and a diesel particulate filter, the exhaust gas of said diesel engine routed to the input of the diesel particulate filter, the exhaust output from said diesel particulate filter routed to an exhaust temperature control module, said exhaust temperature control module having temperature sensing means, and exhaust diverting means, whereby the exhaust gas is diverted to the dump body when the exhaust gas is at or below a predetermined threshold, and the exhaust gas bypasses the dump body when the exhaust gas exceeds a predetermined threshold, wherein the exhaust-diverting means comprises:
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a diverter; an extension member; an air cylinder connected to the extension member; an air supply conduit connected to said air cylinder; at least one air flow controller disposed inline with said air supply conduit; at least one temperature sensor, each said temperature sensor being configured to provide a temperature signal to one of said at least one air flow controllers; a diverter control arm having a first and second end; the first end of said diverter control arm being connected to said extension member; and the second end of said diverter control arm being connected to the diverter;
whereby said temperature signal causes activation of the air cylinder, moving the extension member, thereby moving the diverter control arm and establishing the position of the diverter.
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Specification