Engine generator

Patent metadata

Field	Value
Publication number	US-11274620-B2
Application number	US-202016747788-A
Country	US
Kind code	B2
Filing date	Jan 21, 2020
Priority date	Mar 11, 2019
Publication date	Mar 15, 2022
Grant date	Mar 15, 2022

Abstract

An engine generator, comprising an engine, a power generator configured to generate electric power based on motive power of the engine, a cooling fan configured to generate a cooling wind for cooling the engine, a control panel configured to accept an operation input by a user, a storage chamber configured to store a constituent part of the control panel, a sensor unit configured to detect a predetermined gas in the storage chamber, and a controller configured to stop the engine based on a detection result of the sensor unit, wherein the storage chamber stores the sensor unit and communicates with outer air such that a gas in the storage chamber can be suctioned by the cooling fan.

First claim

What is claimed is:

1. An engine generator comprising:
an engine;
a power generator configured to generate electric power based on motive power of the engine;
a cooling fan configured to generate a cooling wind for cooling the engine;
a control panel configured to accept an operation input by a user;
a sensor unit configured to detect a predetermined gas;
a controller configured to stop the engine based on a detection result of the sensor unit; and
a cubic shaped frame with one or more beams, on which the engine, the power generator, the cooling fan and the control panel are fixed,
wherein a storage chamber is formed by the control panel attached to the frame,
a constituent part of the control panel is provided on a face of the control panel, the face being an inner face for the storage chamber, and
the storage chamber stores the sensor unit and communicates with outer air such that a gas in the storage chamber can be suctioned by the cooling fan.

2. The engine generator according to claim 1 , wherein the controller is arranged in the storage chamber.

3. The engine generator according to claim 1 , wherein the storage chamber includes:
a first opening portion configured to exhaust the gas in the storage chamber; and
a second opening portion configured to flow the gas into the storage chamber.

4. The engine generator according to claim 3 , wherein the first opening portion is formed at a portion near the cooling fan out of a wall portion of the storage chamber.

5. The engine generator according to claim 3 , further comprising a fuel tank configured to store fuel of the engine,
wherein the storage chamber and the fuel tank are arranged adjacent to each other, and
the second opening portion is arranged at a portion near the fuel tank out of a wall portion of the storage chamber.

6. The engine generator according to claim 1 , further comprising an air cleaner arranged on the engine on a suction side,
wherein the cooling fan and the air cleaner are arranged adjacent to each other below the control panel in a horizontal direction.

7. The engine generator according to claim 6 , further comprising a muffler arranged on the engine on an exhaust side,
wherein the air cleaner and the muffler are arranged to overlap each other in a planar view.

8. The engine generator according to claim 6 , wherein
a width of the air cleaner in a vertical direction is larger than a width of the cooling fan in the vertical direction, and
the control panel and the storage chamber have a recessed shape above the air cleaner.

9. The engine generator according to claim 1 , wherein the sensor unit is arranged in the storage chamber such that a detection surface of the sensor unit is fixed in a posture in which the detection surface faces one of a lower direction and a lateral direction.

10. The engine generator according to claim 1 , further comprising a second cooling fan configured to generate a cooling wind for cooling the engine while the cooling fan is used as a first cooling fan,
wherein the engine is located between the first cooling fan and the second cooling fan.

11. The engine generator according to claim 10 , wherein
the second cooling fan is located between the engine and the power generator, and
the second cooling fan suctions outer air as the cooling wind, and sends the cooling wind to the engine via the power generator.

12. The engine generator according to claim 1 , wherein the sensor unit is arranged to allow detection of carbon oxide gas.

Assignees

• Honda Motor Co Ltd

Inventors

• Yamada Makoto
• Kitsu Kunihiro
• Kamiyama Daiki
• Miwa Kazuya

Classifications

• F02D29/06 Primary

  peculiar to engines driving electric generators · CPC title

• F02B63/048

  Portable engine-generator combinations · CPC title

• F02D41/1453 Primary

  the characteristics being a CO content or concentration · CPC title

• F02B77/08

  Safety, indicating, or supervising devices (thermal insulation F02B77/11; monitoring or diagnostic devices for exhaust-gas treatment apparatus F01N11/00) · CPC title

• F02D17/04

  rendering engines inoperative or idling, e.g. caused by abnormal conditions (dependent on lubricating conditions F01M1/22; dependent on cooling F01P5/14) · CPC title