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US 2013/0199862 A1Published application
Haulage vehicle
AssigneeHitachi Construction Machinery Co., Ltd.
InventorsHiroaki Ogawara, Shinji Akino
Life of this patent
Estimating the term…
Abstract
An opening through which air is delivered to a radiator for an engine installed in a haulage vehicle is split into separate portions via a support frame. Sound absorbing ducts are each mounted over one of the partitioned opening areas formed by splitting the opening via the support frame.
Claims6
A haulage vehicle, comprising:
- a support frame that divides an opening area, through which air is taken into a radiator for an engine installed in a chassis of said haulage vehicle, into smaller partitioned areas;
- and
- a plurality of sound absorbing ducts, each mounted at one of said partitioned areas of said opening area, which are defined by said support frame, by locking mounting pieces disposed in peripheral areas to a frame present around said opening area and to said support frame via bolts, and each having a plurality of air passages with a sound absorbing material bonded to inner walls of said air passages.
Dependencies are inferred from the claim text.