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Integrated generator for screed plate heat up

A technology for generators and screeds, which can be used in roads, buildings, road repairs, etc., and can solve problems such as low efficiency and performance

Active Publication Date: 2015-09-23
CATERPILLAR PAVING PROD INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Because of the inefficiencies and performance risks associated with powering the screed heating elements in current pavers, there is a need for improved power and delivery to the screed heating elements and improved handling of ground fault conditions to Minimizes adverse effects on paver-laid bedding

Method used

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  • Integrated generator for screed plate heat up
  • Integrated generator for screed plate heat up
  • Integrated generator for screed plate heat up

Examples

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Embodiment Construction

[0016] Although specific implementations of various embodiments are described in detail below, it should be understood that the scope of legal protection is defined by the claims at the end of this patent. The detailed description should be construed as exemplary only, and does not describe every possible embodiment, since describing every possible embodiment would be impractical, if not impossible. Numerous alternative embodiments could be implemented, using modern technology or technology developed after the filing date of this patent, which would still fall within the scope defined by the claims.

[0017] It should also be understood that, unless an express term is defined herein, no limitation is expressly or impliedly placed on the meaning of the term, other than its ordinary meaning, and that these terms should not be construed as limiting (other than the language of the claims). To the extent any terms recited in the claims at the end of this patent are recited herein ...

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Abstract

A paving machine for laying a mat of paving material on a paving surface includes a generator, such as a switched reluctance generator, integrally installed with a pump drive and operatively connected to an output shaft of a power source of the paving machine. The generator outputs AC power to a power converter that in turn outputs DC power for a plurality of screed heating elements to produce heat to warm a screed. The paving machine may also include an insulation monitoring system for determining the occurrences of ground faults in the electrical components by comparing current levels in the components to a predetermined maximum current level. A controller of the paving machine may monitor the temperature of the generator and produce the speed of the power source to prevent overheating.

Description

technical field [0001] The present invention relates generally to paving machines that are machine operated to place a bedding of paving material on a paving surface, and more particularly to a method of improving the efficiency and reliability of the heating process used to place a The paver screed is heated to an optimum temperature for spreading the bedding on the paving surface. Background technique [0002] When building roads, parking lots, etc., paver machines deposit paving material, such as asphalt, onto the paving surface, creating a flat, consistent surface for vehicular traffic. Pavers on construction sites, such as asphalt pavers, are typically state-of-the-art autonomous construction machinery designed to receive, convey, distribute, shape and partially compress asphalt material. The paver accepts asphalt material heated to the proper temperature to allow it to flow and even spread to the receiving hopper in front of the paver. The asphalt material in the hop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C19/18E01C19/22
CPCE01C19/48E01C2301/10
Inventor T·M·索普科R·T·泰斯R·J·洛德T·A·雷利赫E·L·威尔R·W·林德赛R·T·阿德拉
Owner CATERPILLAR PAVING PROD INC
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