Electromagnetically operable valve
First Claim
1. An electromagnetically operable valve for fuel injection systems of internal-combustion engines, having a core (1) surrounded by a magnet coil (3), an armature (12) welded to a connecting pipe (23), a valve closing body (14) which interacts with a fixed valve seat (9) is welded to said connecting pipe, a core end facing said armature, a pipe-shaped metallic intermediate part (6) which is connected by means of an upper end to said end (2) of said core facing the armature and by means of a lower end is connected to a pipe-shaped connecting part (23) in a sealed manner by welding, at least one clip-shaped guide element (29), which engages over the magnet coil and is connected by means of a lower end facing the valve closing body to the connecting part (20), and is connected by means of an upper end to the core (1) by welding, a metallic valve seating body (8), which has a fixed valve seat (9), and is mounted on the connecting part (20) on an end facing away from the intermediate part by welding, said lower end of said armature (12) includes a reduced diameter portion in cross section which is welded to said connecting pipe (23), said upper and lower ends of said intermediate part include a reduced diameter portion which is welded to said lower end (2) of said core (1) and said connecting part (20), respectively, said upper and lower ends of said clip-shaped guide element (29) includes a reduced diameter portion which is welded to said core (1) and said connecting part (20), respectively, and said lower end of said connecting part (20) includes a reduced diameter portion which is welded to said valve seating body.
1 Assignment
0 Petitions
Accused Products
Abstract
An electromagnetically operable valve having a core on which a magnet coil is arranged, an armature which acts on a valve closing body by means of a connecting pipe, in which the components to be welded together include a reduced diameter portion in which welding of the parts is by a laser in the reduced diameter portions.
70 Citations
22 Claims
- 1. An electromagnetically operable valve for fuel injection systems of internal-combustion engines, having a core (1) surrounded by a magnet coil (3), an armature (12) welded to a connecting pipe (23), a valve closing body (14) which interacts with a fixed valve seat (9) is welded to said connecting pipe, a core end facing said armature, a pipe-shaped metallic intermediate part (6) which is connected by means of an upper end to said end (2) of said core facing the armature and by means of a lower end is connected to a pipe-shaped connecting part (23) in a sealed manner by welding, at least one clip-shaped guide element (29), which engages over the magnet coil and is connected by means of a lower end facing the valve closing body to the connecting part (20), and is connected by means of an upper end to the core (1) by welding, a metallic valve seating body (8), which has a fixed valve seat (9), and is mounted on the connecting part (20) on an end facing away from the intermediate part by welding, said lower end of said armature (12) includes a reduced diameter portion in cross section which is welded to said connecting pipe (23), said upper and lower ends of said intermediate part include a reduced diameter portion which is welded to said lower end (2) of said core (1) and said connecting part (20), respectively, said upper and lower ends of said clip-shaped guide element (29) includes a reduced diameter portion which is welded to said core (1) and said connecting part (20), respectively, and said lower end of said connecting part (20) includes a reduced diameter portion which is welded to said valve seating body.
Specification