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Engine generator apparatus

一种发动机驱动、发电装置的技术，应用在发动机的起动、发动机用电动机起动、发动机元件等方向，能够解决氧浓度传感器输出不稳定、旋转变化变大等问题

Inactive Publication Date: 2007-07-25
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this example, when the engine-driven generator is released from the system due to a power failure, the load is also disconnected at the same time, so it becomes a no-load operation, and the rotation changes greatly, which tends to cause the output of the oxygen concentration sensor to become unstable.

Method used

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  • Engine generator apparatus
  • Engine generator apparatus
  • Engine generator apparatus

Examples

Experimental program
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Embodiment Construction

[0025] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing the structure of an engine generator. The engine generator 10 includes an engine 11 and a generator 12, and the generator 12 is driven by the engine 11 to generate alternating current corresponding to the rotational speed. The generator 12 is composed of a rotor connected to the engine 11 and a stator around which three-phase output coils are wound (both are not shown in the figure). The output terminals of the three-phase output coils are connected to the inverter device 13 . The inverter device 13 is an output control device that converts the AC power output by the generator 12 into AC power of the same quality as that of the commercial power system in terms of voltage, frequency, noise, etc. Function to perform synchronous connection (inverter control unit described later).

[0026] Specifically, the inverter device 13 inc...

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Abstract

An apparatus of the invention controls the air-fuel ratio in response to the stable output of an oxygen sensor (37). When a system protector (138) detects a disorder in apower network (14), it outputs failure signal. A connection relay (135) is opened in response to the failure signal to release connection of a generator to the power network (14) to release load. When the failure signal is not detected, a load determination section (41) urges a proportional valve controller (40) and the controller (40) drives a valve (35) corresponding to the oxygen density to perform a control of the air-fuelratio. The load determination section (41) determines that the load is released by the failure signal to send a notification of no load to the controller (40). The controller (40) stops the control of the air-fuel ratio based on the oxygen density in response to this notification.

Description

technical field [0001] The present invention relates to an engine-driven power generation device, and more particularly to an engine-driven power generation device having an engine exhaust purification device. Background technique [0002] In recent years, small-scale power generation equipment with relatively simple installation has become popular. In addition, engine-driven power generators of the heat and power simultaneous supply type that not only generate electricity but also utilize exhaust heat accompanying the operation of the power generating engine to achieve efficient operation have begun to spread, and are also being developed as small-sized devices for household use. [0003] In this type of power generation device, for example, in the case of using a generator driven by a gasoline engine or a gas engine, the air-fuel ratio of the mixture supplied to the engine is controlled to Theoretical air-fuel ratio to achieve the purification of exhaust gas. [0004] In...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D29/06F02D45/00F02B63/04F02G5/04B60W10/06F01N11/00F02D41/08F02D41/14F02N11/04F02N11/08H02P9/04
CPCY02T10/166F02D29/06F02N11/0803F02D41/1456F02B63/04F02D41/1454F02D41/083F01N11/007Y02T10/47F02D41/1488F02N11/04Y02E20/14Y02T10/12Y02T10/40
Inventor 新荻义久
Owner HONDA MOTOR CO LTD
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