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JPS5546078A - Exhaust gas recycling amount control valve - Google Patents

Exhaust gas recycling amount control valve

Info

Publication number
JPS5546078A
JPS5546078A JP12090178A JP12090178A JPS5546078A JP S5546078 A JPS5546078 A JP S5546078A JP 12090178 A JP12090178 A JP 12090178A JP 12090178 A JP12090178 A JP 12090178A JP S5546078 A JPS5546078 A JP S5546078A
Authority
JP
Japan
Prior art keywords
pipe
negative pressure
control valve
valve
diaphragms
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
JP12090178A
Other languages
Japanese (ja)
Inventor
Kinsaku Yamada
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 JP12090178A priority Critical patent/JPS5546078A/en
Priority to US06/080,024 priority patent/US4248186A/en
Publication of JPS5546078A publication Critical patent/JPS5546078A/en
Pending legal-status Critical Current

Links

Landscapes

  • Exhaust-Gas Circulating Devices (AREA)

Abstract

PURPOSE: To simplify structure, miniaturize shape, and manufacture vlave at lower cost by reducing the number of diaphragms in exhaust gas recycling amount control valve from the conventional three pieces to two.
CONSTITUTION: In the control valve, Venturi negative pressure is exerted on the negative pressure chamber 40 rather than the pipe 45, and also the control pressure between the fixed orifice and the exhaust recycling valve of the exhaust recycling pipe is exerted on the back pressure chamber 38 from the pipe 39, whereby causing upward and downward forces to produce on each of the diaphragms 31 and 41. In this case, if effective area ratio of the diaphragms 31 and 41 is set up to a desired size, control pressure can amplify the Venturi negative pressure to as much as its effective area ratio. And, exhaust recycling valve is controlled by controlling the negative pressure exerting on exhaust recycling valve (not illustrated) through the pipe 46 leading to the open air by using the seat portion 42 fitted integrally to the diaphragm 41.
COPYRIGHT: (C)1980,JPO&Japio
JP12090178A 1978-09-29 1978-09-29 Exhaust gas recycling amount control valve Pending JPS5546078A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP12090178A JPS5546078A (en) 1978-09-29 1978-09-29 Exhaust gas recycling amount control valve
US06/080,024 US4248186A (en) 1978-09-29 1979-09-28 Exhaust gas recirculation control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12090178A JPS5546078A (en) 1978-09-29 1978-09-29 Exhaust gas recycling amount control valve

Publications (1)

Publication Number Publication Date
JPS5546078A true JPS5546078A (en) 1980-03-31

Family

ID=14797795

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12090178A Pending JPS5546078A (en) 1978-09-29 1978-09-29 Exhaust gas recycling amount control valve

Country Status (1)

Country Link
JP (1) JPS5546078A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5364121A (en) * 1976-11-17 1978-06-08 Hitachi Ltd Control valves for exhaust reflux devices

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5364121A (en) * 1976-11-17 1978-06-08 Hitachi Ltd Control valves for exhaust reflux devices

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