JPS57116974A - Multi-stage shaft seal device - Google Patents

Multi-stage shaft seal device

Info

Publication number
JPS57116974A
JPS57116974A JP218981A JP218981A JPS57116974A JP S57116974 A JPS57116974 A JP S57116974A JP 218981 A JP218981 A JP 218981A JP 218981 A JP218981 A JP 218981A JP S57116974 A JPS57116974 A JP S57116974A
Authority
JP
Japan
Prior art keywords
pressure
difference
solenoid
operating
branch
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
JP218981A
Other languages
Japanese (ja)
Inventor
Tadahiko Kimizuka
Yasunari Hoshino
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP218981A priority Critical patent/JPS57116974A/en
Publication of JPS57116974A publication Critical patent/JPS57116974A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G1/00—Hot gas positive-displacement engine plants
    • F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
    • F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
    • F02G1/053—Component parts or details
    • F02G1/0535—Seals or sealing arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Sealing Devices (AREA)

Abstract

PURPOSE: To hold a device in a good state of sealing quality, by detecting a difference of pressure between seals, comparing the pressure with set pressure, operating a gas pressure regulating means on the basis of its result and keeping the difference of pressure to the set pressure.
CONSTITUTION: A branch pressure pipe 21a is divided from the connection part 21 of a gas sump 5, simultaneously a branch pressure pipe 22b is divided from the connection part 22 of a part 9 between seals, and these branch pressure pipes 21a, 22b are connected to a pressure difference converter 35 in which a pressure difference between before and after the shaft seal is detected and converted into an electric signal A. While there is provided a solenoid operating pressure difference setter 36, capable of optionally setting a pressure difference operating a solenoid in a gas pressure regulating device 10 as an electric signal B. Then the both signals A, B are guided to an electric signal comparator and concurrently an on-off signal generating device 37 of solenoid operated electric circuit, and the detected difference pressure is compared with difference pressure required for adjustment, then an on-off signal (c) of the solenoid operated electric circuit is obtained and guided to a switch 31a.
COPYRIGHT: (C)1982,JPO&Japio
JP218981A 1981-01-12 1981-01-12 Multi-stage shaft seal device Pending JPS57116974A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP218981A JPS57116974A (en) 1981-01-12 1981-01-12 Multi-stage shaft seal device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP218981A JPS57116974A (en) 1981-01-12 1981-01-12 Multi-stage shaft seal device

Publications (1)

Publication Number Publication Date
JPS57116974A true JPS57116974A (en) 1982-07-21

Family

ID=11522408

Family Applications (1)

Application Number Title Priority Date Filing Date
JP218981A Pending JPS57116974A (en) 1981-01-12 1981-01-12 Multi-stage shaft seal device

Country Status (1)

Country Link
JP (1) JPS57116974A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS585569A (en) * 1981-07-02 1983-01-12 Mikuni Jukogyo Kk Shaft sealing device of high pressure reciprocating machine
US7118114B2 (en) 2003-05-15 2006-10-10 Woodward Governor Company Dynamic sealing arrangement for movable shaft
US7426936B2 (en) 2005-11-29 2008-09-23 Woodward Governor Company Fully independent, redundant fluid energized sealing solution with secondary containment

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS585569A (en) * 1981-07-02 1983-01-12 Mikuni Jukogyo Kk Shaft sealing device of high pressure reciprocating machine
JPS6211233B2 (en) * 1981-07-02 1987-03-11 Mikuni Jukogyo
US7118114B2 (en) 2003-05-15 2006-10-10 Woodward Governor Company Dynamic sealing arrangement for movable shaft
US8074999B2 (en) 2003-05-15 2011-12-13 Woodward, Inc. Dynamic sealing arrangement for movable shaft
US7426936B2 (en) 2005-11-29 2008-09-23 Woodward Governor Company Fully independent, redundant fluid energized sealing solution with secondary containment

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