【発明の名称】発泡材料のガス含量を制御する方法および装置

Japanese Patent JP3133320

B2

A foam material dispensing system is provided with a control which measures the amount of high viscosity liquid material delivered to a mixer, determines the amount of pressurized gas required to be injected into the mixer in order to produce a foamable material with a desired gas concentration, measures the amount of gas actually delivered to the mixer, and generates a cumulative error signal representing the difference between the amount of gas and the gas actually delivered. A control signal is generated to regulate the flow of gas to the mixer in relation to the magnitude of the error signal. A digital flow meter generates a pulse for each incremental amount of liquid material delivered to the mixer during an interval of time. During each successive interval, the pulses are counted and the count is multiplied by a preset gas-to-material ratio, from which the measured gas flow is subtracted and the difference added to the cumulatie error term. The error term is combined with a term proportional to the amount of liquid material delivered over a predetermined number of successive time intervals to produce the control signal.

JPH1085657	TREATING DEVICE FOR VISCOUS MULTICOMPONENT ELASTOMER
JPS608874	[Title of the Invention] Fuel injection equipment of materials, such as resin and a catalyst
WO/1998/001228	RAYLEIGH-BREAKUP ATOMIZING DEVICES AND METHODS OF MAKING RAYLEIGH-BREAKUP ATOMIZING DEVICES

William Mark Lucky
Gene Marie Ray Day

JP31526390A

February 05, 2001

November 20, 1990

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NORDSON CORPORATION

B05B7/04; B01F15/04; B05C11/10; B29B7/30; B29B7/72; C08J9/12; G05D11/13; (IPC1-7): B05B7/04; B01F15/04; B05C11/10; B29B7/30; C08J9/12

JP6287267A
JP63143932A
JP6028817A
JP604591Y2

Masao Okabe (4 others)

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