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Measurement apparatus

A technology of measuring device and measuring part, applied in valve device, lift valve, valve detail, etc., can solve the problem that the wireless sensor unit may not be sufficient.

Inactive Publication Date: 2020-02-21
HITACHI ZOSEN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, in the device of Document 1, although wireless sensor units are attached to the exhaust pipe and the like, these wireless sensor units are not necessarily sufficient for measuring the state inside the engine.

Method used

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  • Measurement apparatus
  • Measurement apparatus
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Embodiment Construction

[0061] figure 1 It is a figure which shows the structure of the engine 1 which concerns on one Embodiment of this invention. figure 1 In , a part of the engine 1 is shown in cross section. The engine 1 is an internal combustion engine for ships and is a two-stroke diesel engine. The engine 1 comprises a cylinder 2 and a piston 3 arranged in the cylinder 2, the piston 3 can move along figure 1 Move in the up and down direction. Furthermore, will figure 1 The up and down direction is simply referred to as "up and down direction", but this up and down direction is not limited to the direction of gravity.

[0062] The cylinder 2 includes a cylindrical cylinder liner 21 and a cylinder head 22 attached to an upper portion of the cylinder liner 21 . The piston 3 includes a thick disc-shaped piston head 31 inserted into the cylinder liner 21 and a piston rod 32 connected at one end to the lower surface of the piston head 31 . The other end of the piston rod 32 is connected to a ...

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Abstract

In a measurement device (5), a measurement unit (51) and a transmitter (52) are attached to a valve rod (61) of an exhaust valve drive device (6). The measurement unit (51) performs a predetermined measurement, and the transmitter (52) transmits a signal indicating a measured value by wireless communication. The signal is received by a receiver provided at a position away from the valve rod (61).As a result, it is possible to easily and immediately acquire a measurement value indicating the state of the valve rod (61) of the exhaust valve actuating device (6) or the state around the valve rod(61), thereby achieving an appropriate measurement of the state inside the engine.

Description

technical field [0001] The invention relates to a measuring device for measuring the state inside an engine. Background technique [0002] Conventionally, the state of the engine (internal combustion engine) has been measured while the engine (internal combustion engine) is being driven. In addition, Japanese Patent Application Laid-Open No. 2006-70803 (Document 1) proposes a device for collecting measurement data of an engine by wireless communication. In this device, the wireless sensor unit provided with the oxygen concentration sensor is arranged in the exhaust pipe, and the wireless sensor unit provided with the temperature sensor is arranged in the intake port, the exhaust port and the crank bearing. In addition, a wireless sensor unit including a vibration sensor and a pressure sensor is arranged on the side of the engine, and a wireless sensor unit including a vibration sensor and a wireless sensor unit including an oil temperature sensor are arranged on the main be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B77/08
CPCF02B77/082Y02T10/12F01L3/06F01L2201/00F01L2820/04F02B63/04F02D35/02F02D41/009
Inventor 赤荻祐亮穴井恒平猿渡洋平柴田隼平森勇人藤林孝博马场真二
Owner HITACHI ZOSEN CORP