Power generator

Patent metadata

Field	Value
Publication number	US-11208948-B2
Application number	US-201916665212-A
Country	US
Kind code	B2
Filing date	Oct 28, 2019
Priority date	Dec 28, 2018
Publication date	Dec 28, 2021
Grant date	Dec 28, 2021

Abstract

The power generator comprises an engine, an alternator to be driven by the engine, and shrouds that cover at least a part of the engine, and each of the shrouds is formed of a shroud main body member and a sound absorbing member.

First claim

What is claimed is:

1. A power generator comprising:
an engine having a side surface that curves, a front surface, a top surface, a bottom surface, and a rear surface;
an alternator to be driven by the engine;
a shroud that is in a plate shape and that covers at least a part of the engine, and,
a casing in which the engine, the alternator, and the shroud are stored, wherein
the shroud is a separate part from the casing, is disposed between a side surface of the casing and the side surface of the engine and comprises a shroud main body member and a sound absorbing member,
the shroud main body member defines a shroud opening, the shroud opening penetrates the shroud main body member in a thickness direction of the shroud main body member, and
the sound absorbing member, which is made of a foam material, is received in the shroud opening and extends in the thickness direction of the shroud main body member from one side to an other side of the shroud main body member throughout a length of the shroud opening and entirely closes the shroud opening, the sound absorbing member has, at the shroud opening, a thickness that is larger than a thickness of the shroud main body member such that the sound absorbing member forms, at the shroud opening, opposite surfaces of the shroud main body member,
the shroud main body member comprises, in the shroud opening, a plurality of beam-like members, each of said beam-like members having a beam shape so that the shroud main body member is formed in a frame shape,
the shroud main body member including the plurality of beam-like members is formed in a first shape that curves along a curving shape of the side surface of the engine,
the sound absorbing member covers the shroud opening including the plurality of beam-like members and is formed around opposite surfaces of the shroud main body member surrounding the shroud opening, the sound absorbing member is formed in a second shape along the curving shape of the side surface of the engine,
the sound absorbing member is formed apart via a first gap from an inwardly located surface of the side surface of the casing and is formed apart via a second pap from the side surface of the engine,
the thickness of the sound absorbing member varies in an up and down direction of the engine such that in the up and down direction, the thickness of the sound absorbing member is relatively large when a corresponding space between the side surface of the engine and the inwardly located surface of the side surface of the casing is relatively large and the thickness of the sound absorbing member is relatively small when the corresponding space is relatively small.

2. The power generator according to claim 1 , wherein the sound absorbing member is formed in a shape along an inner shape of the casing.

Assignees

• Honda Motor Co Ltd

Inventors

• Takahashi Chisako

Classifications

• H02K5/203

  specially adapted for liquids, e.g. cooling jackets · CPC title

• H02K5/24

  specially adapted for suppression or reduction of noise or vibrations · CPC title

• F02D29/06

  peculiar to engines driving electric generators · CPC title

• H02K9/06

  with fans or impellers driven by the machine shaft · CPC title

• H02K7/1815 Primary

  structurally associated with reciprocating piston engines (general aspects of generating sets, e.g. housing, F02B63/04) · CPC title