[특허]Soundproof type engine generator

Yamaha Motor Power Products Kabushiki Kaisha

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특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Soundproof type engine generator

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H02P-009/04 F03D-009/00 F02B-063/04 F02B-063/00 H02K-007/18 H02K-005/00 F01P-001/02 F01P-001/00 H05B-007/11 H05B-007/00 B23K-009/10
미국특허분류(USC)	290/055; 290/001.A; 322/001; 123/002; 123/041.7; 219/133
출원번호	UP-0775825 (2007-07-10)
등록번호	US-7557458 (2009-07-15)
우선권정보	JP-2007-096746(2007-04-02)
발명자 / 주소	Yamamoto, Masanobu Takahashi, Hidenori
출원인 / 주소	Yamaha Motor Power Products Kabushiki Kaisha
대리인 / 주소	Knobbe, Martens, Olson & Bear, LLP
인용정보	피인용 횟수 : 8 인용 특허 : 64

초록
▼

A soundproof type engine generator has a first external air inlet and a second external air inlet formed on a soundproof case K. A first cooling passage guides external air drawn in through the first external air inlet through a duct to a first fan, then from the first fan to a generator and discharges the air out of the soundproof case K. A second cooling passage guides external air drawn in through the second external air inlet to an engine using a second fan and then discharges the air out of the soundproof case The first fan is made up of a disk-like planar part, a plurality of first blades and a plurality of second blades, respectively provided radially on both head and tail sides of the planar part. External air drawn with the plurality of first blades through the first external air inlet is guided through the duct to the generator, and discharged out of the soundproof case. Air in the soundproof case is discharged with the plurality of second blades out of the soundproof case. The soundproof type engine generator effectively cools the interior of the soundproof case and simplifies the constitution of the air feed passage via the layout and configuration of the fan.

대표
청구항
▼

What is claimed is: 1. A soundproof type engine generator with a generator and an engine disposed side by side in a soundproof case, comprising: a first external air inlet and a second external air inlet on the soundproof case; a first cooling passage configured to guide external air introduced from the first external air inlet through a duct to a first fan, the first fan configured to guide the said external air to the generator, the air then discharged out of the soundproof case; a second cooling passage configured to guide external air introduced from the second external air inlet with a second fan to the engine, the air then discharged out of the soundproof case; and the first fan comprising: a disk-like planar part; and a plurality of first blades and second blades provided respectively on opposite sides of the planar part, wherein external air introduced into the soundproof case from the first external air inlet with the plurality of first blades is guided through the duct to the generator and then discharged out of the soundproof case, and air in the soundproof case is discharged with the plurality of second blades out of the soundproof case. 2. The soundproof type engine generator of claim 1, wherein: a rotary shaft of the generator and a crankshaft of the engine are disposed coaxially and connected together for interlocked rotation; the first fan is disposed between the generator and the engine; the plurality of first blades of the first fan are disposed so as to face the generator, and the plurality of second blades of the first fan are disposed so as to face the engine; the plurality of second blades are disposed between the engine and the plurality of first blades; air in the soundproof case is introduced through an air feed passage to the plurality of second blades; and an air inlet for introducing air in the soundproof case into the air feed passage is provided proximate at least one of the upper and lower parts of a crank chamber of the engine. 3. The soundproof type engine generator of claim 2, wherein: an air outlet is open at the soundproof case; two air streams fed respectively with the first blades and the second blades of the first fan are brought together proximate an outer radial edge of the first fan; and the combined air streams are discharged out of the soundproof case. 4. The soundproof type engine generator of claim 2, wherein at least part of the air feed passage is formed in a crankcase of the engine. 5. The soundproof type engine generator of claim 2, wherein: the first external air inlet is provided in the side face on the generator side of the soundproof case in a crankshaft direction; the second external air inlet is provided in the side face, on the engine side, of the soundproof case in the crankshaft direction; a gap in communication with a space inside of the soundproof case is provided between the second external air inlet and the second fan; electric components disposed in the gap in the middle of an external air passage extending from the second external air inlet to the second fan; and the air inlet is provided proximate the second blades. 6. A soundproof type engine generator, comprising: with a generator and an engine disposed side by side in a soundproof case, comprising: an internal combustion engine; a generator disposed adjacent the internal combustion engine; a substantially soundproof case configured to house at least the internal combustion engine and the generator, the soundproof case defining a first external air inlet and a second external air inlet; a first fan disposed between the generator and the engine, the first fan configured to draw a first external air flow through the first external air inlet and to guide the first external air flow through a first cooling passage to the generator, the first external air flow discharged out of the soundproof case; and a second fan disposed between the second external air inlet in the substantially soundproof case and the engine, the second fan configured to draw a second external air flow through the second external air inlet and to guide the second external air flow through a second cooling passage to the engine, the second external air flow discharged out of the soundproof case, the second cooling passage being separate from the first cooling passage. 7. The soundproof type engine generator of claim 6, wherein the first fan comprises a rotatable disk-like part and a plurality of first blades and second blades provided respectively on opposite sides of the disk-like part, external air introduced into the soundproof case from the first external air inlet with the plurality of first blades being guided through a duct to the generator and then discharged out of the soundproof case, air in the soundproof case being discharged with the plurality of second blades out of the soundproof case. 8. The soundproof type engine generator of claim 7, wherein: the plurality of first blades of the first fan are disposed so as to face the generator, and the plurality of second blades of the first fan are disposed so as to face the engine; and the plurality of second blades are disposed between the engine and the plurality of first blades. 9. The soundproof type engine generator of claim 6, wherein a rotary shaft of the generator and a crankshaft of the engine are coaxial and coupled for interlocked rotation. 10. The soundproof type engine generator of claim 9, wherein the rotary shaft of the generator and crankshaft of the engine form a unitary body. 11. The soundproof type engine generator of claim 6, wherein the first external air inlet and the second external air inlet are disposed on opposite ends of the substantially soundproof case. 12. The soundproof type engine generator of claim 6, wherein the first cooling passage and second cooling passage are configured to direct external air separately to the generator and engine, respectively, so as to effectively cool the generator and engine. 13. A method for operating a soundproof type engine generator having a generator and an engine disposed side by side in a soundproof case, comprising: drawing a first external air flow through the soundproof case and directing said first external air flow to the generator, the first external air flow ejected out of the soundproof case; and drawing a second external air flow through the soundproof case and directing said second external air flow to the engine, the second external air flow ejected out of the soundproof case, wherein the first external air flow and second external air flow are directed separately to the generator and engine, respectively, so as to effectively cool the generator and engine.

이 특허에 인용된 특허 (64)

이 특허를 인용한 특허 피인용횟수: 8

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Soundproof type engine generator

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이 특허에 인용된 특허 (64)

이 특허를 인용한 특허 피인용횟수: 8

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Soundproof type engine generator

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이 특허에 인용된 특허 (64)

이 특허를 인용한 특허 피인용횟수: 8

IPC 상위 출원인

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IPC 상세정보(version : 201201)

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