1. A fuel injection system for an internal combustion engine, having one high-pressure fuel pump (10) and one fuel injection valve (12), communicating with it, for each cylinder of the engine, wherein the high-pressure fuel pump (10) has a pump piston (18), which is driven by the engine in a reciprocating motion and defines a pump work chamber (22) to which fuel is delivered from a fuel tank (24), wherein the fuel injection valve (12) has a pressure chamber (40), communicating with the pump work chamber (22), and an injection valve member (28), by which at least one injection opening (32) is controlled and which is urged by the pressure prevailing in the pressure chamber (40) counter to a closing force in the opening direction (29) to open the at least one injection opening (32), having a first control valve (78), by which a connection (76) of the pump work chamber (22) with a relief chamber (24) is controlled, and having a second control valve (80), by which a connection (74) of a control pressure chamber (62) of the fuel injection valve with a relief chamber (24) is controlled, wherein the control pressure chamber (62) at least indirectly has a connection (62) with the pump work chamber (22), in which connection a first throttle restriction (73) is provided, and the control pressure chamber (62) is defined by a control piston (60), which acts on the injection valve member (28) in a closing direction, characterized in that in the connection (74) of the control pressure chamber (62) with the relief chamber (24), a second throttle restriction (75) with a fixed flow cross section is provided; that the control piston (60), with its side (66) remote from the injection valve member (28), controls a flow cross section from the control pressure chamber (62) to the connection (74) with the relief chamber (24) as a function of the stroke of the control piston (60); that with an increasing opening stroke of the injection valve member (28), a smaller flow cross section is uncovered by the control piston (60); and that at a maximum opening stroke of the injection valve member (28), the uncovered flow cross section is less than the flow cross section of the second throttle restriction (75).
2. The fuel injection system of claim 1, characterized in that the control piston (60), on its side remote from the injection valve member (28), has a tang (66), with which the control piston (60), when the injection valve member (28) is open, plunges into an orifice (56) of the connection (74) of the control pressure chamber (62) with the relief chamber (24); and that between the tang (66) and the orifice (56), the flow cross section is controlled by the control piston (60).
3. The fuel injection system of claim 2, characterized in that the tang (66) and the orifice (56) of the connection (74) are each embodied at least approximately conically.
4. The fuel injection system of one of claims 1-3, characterized in that the control pressure chamber (62) is embodied in a bore (52) in a housing part (50) of the fuel injection system; and that the first throttle restriction (73) and the second throttle restriction (75) are embodied as throttle bores in this housing part (50).
5. The fuel injection system of claim 4, characterized in that a further bore, forming a spring chamber (46) adjoins the bore (52) in the housing part (50) that forms the control pressure chamber (62), and in this bore forming the spring chamber a closing spring (44), serving to generate the closing force and acting at least indirectly on the injection valve member (28) is disposed, and the control pressure chamber (62) is separated from the spring chamber (46) by the control piston (60).
6. The fuel injection system of claim 4 or 5, characterized in that the high-pressure fuel pump (10) and the fuel injection valve (12) form a common structural unit; and that the housing part (50) is disposed between a pump body (14) of the high-pressure fuel pump (10) and a valve body (26) of the fuel injection valve (12).
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An antenna for a PC card, the antenna comprising:
a shaft having a first end and a second end;
a hinge disposed intermediate the first end and the second end at an angle relative to the PC card;
a knub disposed at the second end of the shaft, the knub having at least one gripping surface for gripping by a user, the gripping surface being orientated at the angle relative to the hinge such that upon movement of the knub, the angle causes rotation of the shaft into a proper position for deployment.
2. An antenna as recited in claim 1, wherein the angle is 45 degrees.
3. An antenna as recited in claim 1, wherein the gripping surface has a contoured configuration.
4. An antenna as recited in claim 1, wherein the gripping surface is a dimple formed within the knub.
5. An antenna as recited in claim 1, wherein the antenna deploys properly when the antenna is an orientation which allows maximum data transmission by the PC card.
6. An antenna assembly for a PC card, the antenna assembly comprising:
a housing having a guide radially disposed within an inner wall of the housing, the guide being configured to rotate a shaft as a user pulls the shaft from within the housing, the shaft having a first end and a second end;
a hinge disposed intermediate the first end and the second end of the shaft, the hinge being configured for rotating the second end of the antenna relative to the first end of the antenna for proper deployment of the antenna; and
a knub disposed about the second end of the antenna, the knub including a gripping surface, the gripping surface being configured to allow the user to grip the surface for deployment of the antenna, the gripping surface being disposed relative to the hinge such that as the user deploys the antenna, the antenna deploys in a proper configuration.
7. An antenna as recited in claim 6, wherein the antenna deploys in a proper configuration when the antenna is an orientation which allows maximum data transmission by the PC card.
8. An antenna as recited in claim 6, wherein the gripping surface is a knub formed within the knub.
9. An antenna as recited in claim 6, wherein the gripping surface has a contoured configuration.
10. An antenna as recited in claim 11, the shaft further comprising:
pins radially disposed about the shaft, the pins being configured for engagement with the guide of the housing such that as the user pulls the shaft from the housing, the shaft rotates as the pins engage with the guide.
11. An antenna assembly for a PC card, the antenna comprising:
a housing having a shaft, the shaft including a first end and a second end opposite the first end, the shaft being disposed within the housing;
a hinge disposed intermediate the first end and the second end, the hinge being configured for rotating the second end of the antenna relative to the first end of the antenna for proper deployment of the antenna; and
a knub disposed about the second end of the antenna, the knub including a gripping surface, the gripping surface being configured to allow a user to grip the surface for deployment of the antenna, the gripping surface being disposed relative to the hinge such that as the user deploys the antenna, the antenna deploys in a proper configuration.
12. An antenna as recited in claim 11, wherein the housing includes a guide radially disposed within an inner wall of the housing, the guide being configured to rotate the shaft of the antenna as the user pulls the shaft from within the housing.
13. An antenna as recited in claim 12, the shaft further comprising:
pins radially disposed about the shaft, the pins being configured for engagement with the guide of the housing such that as the user pulls the shaft from the housing, the shaft rotates as the pins engage with the guide.
14. An antenna as recited in claim 11, wherein the knub is disposed at an angle relative to the hinge.
15. An antenna as recited in claim 14, wherein the hinge is disposed at the angle relative to the housing.
16. An antenna as recited in claim 15, wherein the angle allows proper deployment of the antenna from the PC card.
17. An antenna as recited in claim 16, wherein the angle is 45 degrees.