Abstract: An object of the present invention is to provide a hydrocarbon gas flow rate adjusting method and apparatus, which suppress deterioration of an elastic foamed body with the passage of time and enables a stabilized adjustment of the flow rate for a long period by combining a fine porous film with a porous elastic foamed body. More specifically, fuel gas taken out of a tank which stores hydrocarbon fuel gas in liquid phase is controlled in its flow rate such that the upper limit of the flow rate is the maximum flow rate obtained by depressurizing the fuel gas with a flow rate restricting member as a first stage and then adjusting to an arbitrary flow rate within a range of the restricted maximum flow rate with an adjustable flow rate adjusting member.

Abstract: An object of the present invention is to provide a hydrocarbon gas flow rate adjusting method and apparatus, which suppress deterioration of an elastic foamed body with the passage of time and enables a stabilized adjustment of the flow rate for a long period by combining a fine porous film with a porous elastic foamed body. More specifically, fuel gas taken out of a tank which stores hydrocarbon fuel gas in liquid phase is controlled in its flow rate such that the upper limit of the flow rate is the maximum flow rate obtained by depressurizing the fuel gas with a flow rate restricting member as a first stage and then adjusting to an arbitrary flow rate within a range of the restricted maximum flow rate with an adjustable flow rate adjusting member.

Abstract: An object of the present invention is to provide a hydrocarbon gas flow rate adjusting method and apparatus, which suppress deterioration of an elastic foamed body with the passage of time and enables a stabilized adjustment of the flow rate for a long period by combining a fine porous film with a porous elastic foamed body. More specifically, fuel gas taken out of a tank which stores hydrocarbon fuel gas in liquid phase is controlled in its flow rate such that the upper limit of the flow rate is the maximum flow rate obtained by depressurizing the fuel gas with a flow rate restricting member as a first stage and then adjusting to an arbitrary flow rate within a range of the restricted maximum flow rate with an adjustable flow rate adjusting member.

Abstract: A piezoelectric high voltage device has a high voltage lead line and a fixed container fixedly maintained without using an adhesive agent. A connecting portion between the lead line and a terminal plate is fixed by filling an adhesive agent thereupon. Kinetic energy caused by the hitting of a hammer can be changed into electric energy without any loss by use of Polytetrafluoroethylene.