GB1358797A - Control valve for positive crankcase ventilations system - Google Patents

Control valve for positive crankcase ventilations system

Info

Publication number
GB1358797A
GB1358797A GB391272A GB391272A GB1358797A GB 1358797 A GB1358797 A GB 1358797A GB 391272 A GB391272 A GB 391272A GB 391272 A GB391272 A GB 391272A GB 1358797 A GB1358797 A GB 1358797A
Authority
GB
United Kingdom
Prior art keywords
crank
intake manifold
orifice
inlet manifold
plunger
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.)
Expired
Application number
GB391272A
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.)
Ford Motor Co Ltd
Ford Motor Co
Original Assignee
Ford Motor Co Ltd
Ford Motor Co
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 Ford Motor Co Ltd, Ford Motor Co filed Critical Ford Motor Co Ltd
Publication of GB1358797A publication Critical patent/GB1358797A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
    • F01M13/021—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure
    • F01M13/022—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure using engine inlet suction
    • F01M13/023—Control valves in suction conduit
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7748—Combustion engine induction type
    • Y10T137/7749—Valve in auxiliary inlet to induction line

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Check Valves (AREA)

Abstract

1358797 Ventilating crank-cases;treating charge FORD MOTOR CO Ltd 27 Jan 1972 [31 March 1971] 3912/72 Heading F1B [Also in Division F2] In an I.C. engine having a ventilated crankcase and an intake manifold a valve provides a variable restriction in a passage between the crank-case and the intake manifold in response to intake manifold pressure, the response of the valve being delayed upon a sudden change in intake manifold pressure. Crank-case gases pass via port 27, orifice 29 and port 28 to a line (20) Fig. 3 (not shown) leading to the inlet manifold. The orifice 29 is controlled by a tapered plunger 31 moved by a diaphragm 36 acted on by ambient pressure in chamber 34 and inlet manifold vacuum in chamber 33 communicated to port 39 from line (20). At low speeds the plunger 31 is positioned to restrict the flow of crank-case gases and as engine speed increases with consequent decrease of inlet manifold vacuum the plunger 31 is moved to permit full gas flow. On sudden acceleration from a low speed the decrease in the inlet manifold vacuum causes a valve element 54 to seat on surface 51 to delay the equalization of pressures in manifold 19 and compartment 34. Thus the onset of full gas flow through orifice 29 is delayed during acceleration.
GB391272A 1971-03-31 1972-01-27 Control valve for positive crankcase ventilations system Expired GB1358797A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12983371A 1971-03-31 1971-03-31

Publications (1)

Publication Number Publication Date
GB1358797A true GB1358797A (en) 1974-07-03

Family

ID=22441821

Family Applications (1)

Application Number Title Priority Date Filing Date
GB391272A Expired GB1358797A (en) 1971-03-31 1972-01-27 Control valve for positive crankcase ventilations system

Country Status (6)

Country Link
US (1) US3678910A (en)
JP (1) JPS527508B1 (en)
AU (1) AU456529B2 (en)
CA (1) CA958615A (en)
DE (1) DE2207593A1 (en)
GB (1) GB1358797A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002073009A1 (en) * 2001-03-13 2002-09-19 Volvo Lastvagnar Ab Valve device for pressure control in a combustion engine, and a method for such pressure control

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4245592A (en) * 1979-05-22 1981-01-20 Chrysler Corporation Controlled flow purge system and apparatus
GB2115109B (en) * 1982-02-17 1985-04-17 Massey Ferguson Perkins Ltd Vent valve
EP0107309A1 (en) * 1982-09-27 1984-05-02 Borg-Warner Corporation Pressure control system
US4686952A (en) * 1986-12-22 1987-08-18 Chrysler Motors Corporation Controlled PCV valve
US5347973A (en) * 1993-06-25 1994-09-20 Walker Design Inc. Vacuum relief valve
DE4416119B4 (en) * 1994-05-06 2006-02-09 Mahle Filtersysteme Gmbh Crankcase ventilation valve
DE19615865A1 (en) * 1996-04-20 1997-10-23 Bosch Gmbh Robert Pressure control valve
WO2001090617A1 (en) * 2000-05-25 2001-11-29 Asco Controls, L.P. Pressure regulating piston with built in relief valve
US6666192B2 (en) 2001-11-14 2003-12-23 Delphi Technologies, Inc. Fluid control valve and system
US6779516B1 (en) * 2003-05-30 2004-08-24 Detroit Diesel Corporation Closed crankcase ventilation system with flow meter for monitoring engine operation
DE102004022275A1 (en) * 2004-05-06 2005-12-01 Robert Bosch Gmbh Pressure control valve
US7140358B1 (en) * 2005-05-06 2006-11-28 Toyota Technical Center Usa, Inc. Oil separator
DE202006017813U1 (en) * 2006-11-23 2008-03-27 Hengst Gmbh & Co.Kg Internal combustion engine with a crankcase ventilation line
GB0921576D0 (en) 2009-12-10 2010-01-27 Parker Hannifin U K Ltd A regulator
USD912703S1 (en) * 2018-11-15 2021-03-09 RB Distribution, Inc. Positive crankcase ventilation diaphragm retainer
CN111173587B (en) * 2019-12-31 2021-04-16 潍柴动力股份有限公司 Pressure regulating method, regulating device and regulating system of PCV valve body

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US175035A (en) * 1876-03-21 Improvement in water-closet valves
US2884950A (en) * 1955-10-10 1959-05-05 Francois N Palmatier Crankcase ventilator
US3308798A (en) * 1965-05-05 1967-03-14 Kenneth M Snider Metering valve for crankcase ventilation systems

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002073009A1 (en) * 2001-03-13 2002-09-19 Volvo Lastvagnar Ab Valve device for pressure control in a combustion engine, and a method for such pressure control
US6802303B2 (en) 2001-03-13 2004-10-12 Volvo Lastvagnar Ab Valve device for pressure control in a combustion engine, and a method for such pressure control

Also Published As

Publication number Publication date
AU3519671A (en) 1973-05-10
US3678910A (en) 1972-07-25
CA958615A (en) 1974-12-03
DE2207593A1 (en) 1973-08-02
AU456529B2 (en) 1974-12-19
JPS527508B1 (en) 1977-03-02

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees