Claims
- 1. An injection valve for fuel injection systems of internal combustion engines, comprising a nozzle body, a fixed valve seat provided on one end of said nozzle body, a movable valve element arranged to cooperate with said fixed valve seat provided on said nozzle body, said nozzle body comprises a guide bore of uniform diameter downstream of said valve seat, a cup-shaped swirl insert disposed downstream of said fixed valve seat and compressed in said guide bore, said valve seat is adjoined in a direction of fuel flow by a fuel collecting chamber (38) and said fuel collecting chamber is adjoined by said guide bore and said swirl insert, said swirl insert including a bottom (58) facing said valve seat (36), said bottom having a surface juxtaposed said valve element, a cylindrical outer wall (60) extending from said bottom in a fuel flow direction, a preparation bore (61) which opens in a direction remote from said valve seat and surrounded by said cylindrical wall, an oblique portion (63) extending from an outer surface of said bottom of said swirl insert adjacent to said valve element to an outer surface of said cylindrical wall (60) of said swirl insert, said swirl insert is provided with swirl channels (59) which originate along said oblique portion at the collection chamber (38) and are inclined downwardly relative to the longitudinal axis of the injection valve away from said wall (60) of said swirl insert into said preparation bore (61), whereby said swirl channels (59) meter an ejected quantity of fuel and discharge into the preparation bore (61).
- 2. An injection valve as claimed in claim 1 wherein said swirl insert is made from sheet metal.
Priority Claims (1)
Number |
Date |
Country |
Kind |
3121572 |
May 1981 |
DEX |
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Parent Case Info
This application is a division of pending application Ser. No. 725,522 filed Apr. 23, 1985, which is a continuation of Ser. No. 438,824 filed Nov. 3, 1982, now abandoned.
US Referenced Citations (7)
Foreign Referenced Citations (1)
Number |
Date |
Country |
014821 |
Jun 1956 |
DEX |
Divisions (2)
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Number |
Date |
Country |
Parent |
725522 |
Apr 1985 |
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Parent |
438824 |
Nov 1982 |
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