Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1995-12-13
1997-03-18
Moulis, Thomas N.
Internal-combustion engines
Charge forming device
Fuel injection system
123468, F02M 4100
Patent
active
056113137
ABSTRACT:
The present invention relates to a process for integrally molding an assembly, having parts in a die lock situation, in a single molding step. The molding process of the present invention has the steps of providing a composite component with a predefined contour, molding a core fuel rail integrated with the composite component, connecting the core fuel rail to a main core structure, overmolding the combined core fuel rail and main core structure to form a finished assembly, removing and melting out the combined core fuel rail and main core structure and extracting the composite component to provide the finished assembly with a substantially accurate finish. The present invention also relates to a manifold with integrally formed core fuel rails. The core fuel rails and injector pockets are molded together with the main manifold body in a single step although the injector pockets are in a die lock situation relative to the main manifold body. The interior surfaces of the injector pockets molded using the present invention have a substantially accurate finish.
REFERENCES:
patent: 4296063 (1981-10-01), Sendo et al.
patent: 4365783 (1982-12-01), Kesling
patent: 4593880 (1986-06-01), Smith et al.
patent: 4768487 (1988-09-01), Yamamoto et al.
patent: 4771751 (1988-09-01), Haigh et al.
patent: 4776313 (1988-10-01), Freismuth et al.
patent: 4884622 (1989-12-01), Jouguelet
patent: 5002371 (1991-03-01), Daly
patent: 5013511 (1991-05-01), Akashi
patent: 5062405 (1991-11-01), Daly
patent: 5097594 (1992-03-01), Daly et al.
patent: 5146897 (1992-09-01), Hattori et al.
patent: 5156124 (1992-10-01), Sugimoto et al.
patent: 5189782 (1993-03-01), Hickey
patent: 5357931 (1994-10-01), Semence
patent: 5411001 (1995-05-01), Werner et al.
David O. Kennedy, Structural-foam PPS manifolds for automotive engines, Plastics Design Forum, Jul./Aug. 1988.
L. De Keyzer, Fusible core technology: From research to industrialization, Automotive Polymers & Design, Aug. 1991.
Thomas F. Kidd, Metallic Core Technology, ND. No Date.
Handy & Harman Automotive Group, Ind.
Moulis Thomas N.
LandOfFree
Process for molding a fuel rail assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for molding a fuel rail assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for molding a fuel rail assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1699007