Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
252 words
An electromagnetically actuatable injection valve for fuel injection systems, having a valve closing element that is actuatable by an armature in a direction of a longitudinal valve axis, said valve closing element includes a valve face (50) that cooperates with a valve seat face (41), to form a sealing seat (41, 50) and downstream of the sealing seat said valve closing element has a terminal face (48) that is oriented toward a perforated plate spaced from said terminal face and having at least one injection port, wherein beginning at the sealing seat between the terminal face and the perforated plate a flow cross section for the fuel flow is formed, the fuel flow between the terminal face (48) of the valve closing element 27 and the perforated plate (46) takes place as far as the at least one injection port (49) toward the longitudinal valve axis (53), and the terminal face (48) and the perforated plate (46) are configured such that beginning at the sealing seat (41, 50), an increase in an axial spacing (H) between the terminal face (48) and the perforated plate (46) results as a distance from the longitudinal valve axis (53) decreases, in such a manner that the flow cross section area for the fuel flow from the sealing seat (41, 50) to the at least one injection port (49) remains virtually constant and that said axial spacing (H) is constant in the radial direction from said at least one injection part (49) to said valve axis (53).
Claim 2
Dependent Claim
252 words
An electromagnetically actuatable injection valve for fuel injection systems, having a valve closing element that is actuatable by an armature in a direction of a longitudinal valve axis, said valve closing element includes a valve face (50) that cooperates with a valve seat face (41), to form a sealing seat (41, 50) and downstream of the sealing seat said valve closing element has a terminal face (48) that is oriented toward a perforated plate spaced from said terminal face and having at least one injection port, wherein beginning at the sealing seat between the terminal face and the perforated plate a flow cross section for the fuel flow is formed, the fuel flow between the terminal face (48) of the valve closing element 27 and the perforated plate (46) takes place as far as the at least one injection port (49) toward the longitudinal valve axis (53), and the terminal face (48) and the perforated plate (46) are configured such that beginning at the sealing seat (41, 50), an increase in an axial spacing (H) between the terminal face (48) and the perforated plate (46) results as a distance from the longitudinal valve axis (53) decreases, in such a manner that the flow cross section area for the fuel flow from the sealing seat (41, 50) to the at least one injection port (49) remains virtually constant and that said axial spacing (H) is constant in the radial direction from said at least one injection part (49) to said valve axis (53).
Claim 3
Dependent Claim
25 words
A valve as defined by claim 1, in which the downstream terminal face (48) of the valve closing element (29) has a tub-shaped recess (61).
Claim 4
Dependent Claim
29 words
A valve as defined by claim 1, in which a tub-shaped recess (62) is embodied on a side of the perforated plate (46) toward the valve closing element (27).
Claim 5
Dependent Claim
29 words
A valve as defined by claim 2, in which a tub-shaped recess (62) is embodied on a side of the perforated plate (46) toward the valve closing element (27).
Claim 6
Dependent Claim
33 words
A valve as defined in claim 1, in which the downstream terminal face (48) of the valve closing element and an upper face of the perforated plate (46), each have a tub-shaped recess.