Title:
FUEL INJECTION VALVE
Document Type and Number:
WIPO Patent Application WO1987007334
Kind Code:
A3
Abstract:
The fuel injection valve has a ferromagnetic valve housing containing a magnetic coil surrounding a core to which the valve armature is attached. The valve armature supports a valve needle (27) cooperating with an annular valve seat (48). The seal between the valve needle (27) and the valve seat (48) is provided by a rounded surface (90) defined by a toroid (94) with a circular or elliptical cross-section in the outer surface of the valve needle (27). Oref. the toroid (94) has an elliptical cross-section with its major axis parallel to the longitudinal axis of the valve needle (27).
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Inventors:
HANS WALDEMAR (DE)
KIND WILHELM (DE)
KIRCHNER MANFRED (DE)
WERNER SIEGFRIED (DE)
KIND WILHELM (DE)
KIRCHNER MANFRED (DE)
WERNER SIEGFRIED (DE)
Application Number:
PCT/DE1987/000243
Publication Date:
December 30, 1987
Filing Date:
May 27, 1987
Export Citation:
Assignee:
BOSCH GMBH ROBERT (DE)
HANS WALDEMAR (DE)
KIND WILHELM (DE)
KIRCHNER MANFRED (DE)
WERNER SIEGFRIED (DE)
HANS WALDEMAR (DE)
KIND WILHELM (DE)
KIRCHNER MANFRED (DE)
WERNER SIEGFRIED (DE)
International Classes:
F02M51/06; F02M61/06; F02M51/08; F02M61/18; (IPC1-7): F02M51/08; F02M61/18
Foreign References:
| FR2534346A1 | 1984-04-13 | |||
| DE1476146A1 | 1969-07-10 | |||
| GB2029552A | 1980-03-19 | |||
| FR2383324A1 | 1978-10-06 | |||
| DE1212352B | 1966-03-10 | |||
| BE365876A | ||||
| DE3418762A1 | 1985-11-21 | |||
| US4101074A | 1978-07-18 | |||
| DE1046950B | 1958-12-18 | |||
| GB1076184A | 1967-07-19 | |||
| GB2029508A | 1980-03-19 | |||
| GB2097470A | 1982-11-03 | |||
| EP0201191A1 | 1986-11-12 | |||
| EP0184125A1 | 1986-06-11 |
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