(19)
(11) EP 0 396 154 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
03.04.1991 Bulletin 1991/14

(43) Date of publication A2:
07.11.1990 Bulletin 1990/45

(21) Application number: 90110325.9

(22) Date of filing: 26.05.1986
(51) International Patent Classification (IPC)5: F01L 13/06, F01L 13/00
(84) Designated Contracting States:
AT BE CH DE FR GB IT LI LU NL SE

(30) Priority: 09.08.1985 US 763962

(62) Application number of the earlier application in accordance with Art. 76 EPC:
88111487.0 / 0302288

(71) Applicant: THE JACOBS MANUFACTURING COMPANY
Bloomfield Connecticut 06002 (US)

(72) Inventor:
  • Meistrick, Zdenek Sidonius
    Bloomfield, Connecticut 06002 (US)

(74) Representative: Grättinger, Günter 
Grättinger & Partner Postfach 16 55
D-82306 Starnberg
D-82306 Starnberg (DE)


(56) References cited: : 
   
       


    (54) Valve disabling mechanism for an internal combustion engine


    (57) A valve disabling mechanism, which may be employed in internal combustion engines having a retarding mode of the compression-release type additionally to the normal powering mode, includes a tubular adjusting screw (310) affixed to a valve train mechanism (50), a tubular drive pin (324) coaxially disposed within the tubular screw (310) having radial ports (334) and an actuator pin (348) disposed in the tubular drive pin (324) and reciprocated in the drive pin. Locking balls (362) are disposed within the radial ports (334), which are moveable to engage the tubular driven screw (310) and the tubular drive pin (324) for conjoint movement in the normal powering mode and to disengage the tubular screw from the tubular drive pin to permit a reciprocating motion of the tubular screw relative to the tubular drive pin in order to disable or modify the normal motion of the exhaust valves in the retarding mode.






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