JPS54129508A - Air supply apparatus - Google Patents

Air supply apparatus

Info

Publication number
JPS54129508A
JPS54129508A JP3660678A JP3660678A JPS54129508A JP S54129508 A JPS54129508 A JP S54129508A JP 3660678 A JP3660678 A JP 3660678A JP 3660678 A JP3660678 A JP 3660678A JP S54129508 A JPS54129508 A JP S54129508A
Authority
JP
Japan
Prior art keywords
air supply
diaphragm
supply chamber
flange section
valve body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP3660678A
Other languages
Japanese (ja)
Inventor
Kozo Tamura
Tomohiko Taki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP3660678A priority Critical patent/JPS54129508A/en
Publication of JPS54129508A publication Critical patent/JPS54129508A/en
Pending legal-status Critical Current

Links

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

PURPOSE: To provide an air supply apparatus of a simple structure wherein a flow passage varying with the resistance of a fluid passing is provided, a valve body formed by an elastic body which also works as packing being provided at an air feed side, and stable air supply behaviors being obtained by use of the flow resistance between air and water.
CONSTITUTION: An air supply chamber 54 is formed between a diaphragm 50 and a case 52, and an operating pressure chamber 58 being formed between the diaphragm 50 and a cover 56. The operating pressure chamber 58 is connected to a suction passage, placing a communicating pipe 20 therebetween, and being equipped inside with a spring 60 pressing the diaphragm 50 to the air supply chamber 54 side. A check valve 62 is provided in the lower part of the case 52. and a flange section 66 having a through hole 64 being provided in the upper part of the case 52. The flange section 66 seals a gap with an outer wall 68. A valve body 70 having a small hole 72 at the center thereof which comprises an elastic body and works also as a packing is provided in the flange section 66. The valve body 70 communicates a pressure tank 4 and an air supply chamber 54 generally through a small hole 72 and a through hole 65. If water flows out from the pressure tank 4 toward the air supply chamber 54, the small hole 72 closes.
COPYRIGHT: (C)1979,JPO&Japio
JP3660678A 1978-03-31 1978-03-31 Air supply apparatus Pending JPS54129508A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3660678A JPS54129508A (en) 1978-03-31 1978-03-31 Air supply apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3660678A JPS54129508A (en) 1978-03-31 1978-03-31 Air supply apparatus

Publications (1)

Publication Number Publication Date
JPS54129508A true JPS54129508A (en) 1979-10-08

Family

ID=12474448

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3660678A Pending JPS54129508A (en) 1978-03-31 1978-03-31 Air supply apparatus

Country Status (1)

Country Link
JP (1) JPS54129508A (en)

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