A check valve having a valve housing inserted into a receptacle in which housing a pistonlike valve member is guided longitudinally displaceably and cooperating with a valve seat on the valve housing. The valve member is urged in the closing direction by a prestressed closing spring and in the openi
A check valve having a valve housing inserted into a receptacle in which housing a pistonlike valve member is guided longitudinally displaceably and cooperating with a valve seat on the valve housing. The valve member is urged in the closing direction by a prestressed closing spring and in the opening direction by the pressure prevailing in an inlet, and the valve member is inserted into the valve housing from the side of the valve seat. The valve housing is embodied in one piece and is embodied as cup-shaped and has both a bottom and a jacket region that defines a recess. With the open end of its recess, the valve housing points out of the receptacle, and the valve seat is located on the bottom of the valve housing, facing away from the recess. With a shaft, the valve member protrudes through a bore in the bottom into the recess in which the closing spring is located.
대표청구항▼
The invention claimed is: 1. A check valve for a high-pressure pump of a fuel injection system for an internal combustion engine, comprising a one piece valve housing (40) adapted to be inserted into a receptacle (34) in a pump housing part, a pistonlike valve member (60) guided longitudinally disp
The invention claimed is: 1. A check valve for a high-pressure pump of a fuel injection system for an internal combustion engine, comprising a one piece valve housing (40) adapted to be inserted into a receptacle (34) in a pump housing part, a pistonlike valve member (60) guided longitudinally displaceably in the valve housing (40), which valve member cooperates with a valve seat (48) embodied on the valve housing (40), the valve member (60) being urged in the closing direction by a prestressed closing spring (70) and in the opening direction by the pressure prevailing in an inlet (38), the valve member (60) being inserted into the valve housing (40) from the side of the valve seat (48), the valve housing (40) being cup-shaped and having both a bottom (42) and a jacket region that has a recess (41); the valve housing (40) pointing, with the open end of its recess (41), out of the receptacle (34); the valve seat (48) being located on the bottom (42) of the valve housing (40), facing away from the recess (41); the valve member (60) protruding with a shaft (62) through a bore (44b) in the bottom (42) into the recess (41) in which the closing spring (70) is located; and the check valve including at least one inlet conduit (50) extending through the valve housing (40), wherein the at least one inlet conduit (50) discharges at least approximately at a tangent into a bore (44a) surrounding the valve member (60). 2. The check valve according to claim 1, wherein the closing spring (70) is braced on one side on the inside of the bottom (42), pointing into the recess (41), and on the other on a spring plate (72) connected to the shaft (62) of the valve member (60). 3. The check valve according to claim 1, wherein the recess (41) of the valve housing (40) is closed, on its end facing away from the bottom (42), by a cap (78). 4. The check valve according to claim 2, wherein the recess (41) of the valve housing (40) is closed, on its end facing away from the bottom (42), by a cap (78). 5. The check valve according to claim 3, wherein the recess (41) of the valve housing (40) communicates with an inlet region (52) of the check valve (30). 6. The check valve according to claim 4, wherein the recess (41) of the valve housing (40) communicates with an inlet region (52) of the check valve (30). 7. A check valve for a high-pressure pump of a fuel injection system for an internal combustion engine, comprising a one piece valve housing (40) adapted to be inserted into a receptacle (34) in a pump housing part, a pistonlike valve member (60) is guided longitudinally displaceably in the valve housing (40), which valve member cooperates with a valve seat (48) embodied on the valve housing (40), and the valve member (60) being urged in the closing direction by a prestressed closing spring (70) and in the opening direction by the pressure prevailing in an inlet (38). the check valve including at least one inlet conduit (50) extending through the valve housing (40). which at least one inlet conduit discharges in such a way into a bore (44a) surrounding the valve member (60) that the longitudinal axis (51) of the at least one inlet conduit (50) does not intersect the longitudinal axis (45) of the bore (44a) surrounding the valve member (60), wherein the at least inlet conduit (50) discharges at least approximately at a tangent into the bore (44a) surrounding the valve member (60). 8. The check valve according to claim 7, wherein the at least one inlet conduit (50) has a noncircular cross section. 9. The check valve according to claim 7, wherein the valve member (60) has a constriction in its region (66) surrounded by the bore (44a). 10. The check valve according to claim 8, wherein the valve member (60) has a constriction in its region (66) surrounded by the bore (44a). 11. A check valve for a high-pressure pump of a fuel injection system for an internal combustion engine, comprising a one piece valve housing (40) adapted to be inserted into a receptacle (34) in a pump housing part, a pistonlike valve member (60) is guided longitudinally displaceably in the valve housing (40), which valve member cooperates with a valve seat (48) embodied on the valve housing (40), and the valve member (60), being urged in the closing direction by a prestressed closing spring (70) and in the opening direction by the pressure prevailing in an inlet (38), the check valve including at least one inlet conduit (50) extending through the valve housing (40), which at least one inlet conduit discharges in such a way into a bore (44a) surrounding the valve member (60) that the longitudinal axis (51) of the at least one inlet conduit (50) does not intersect the longitudinal axis (45) of the bore (44a) surrounding the valve member (60), wherein the at least one inlet conduit (50) has a noncircular cross section. 12. The check valve according to claim 11, wherein the valve member (60) has a constriction in its region (66) surrounded by the bore (44a).
※ AI-Helper는 부적절한 답변을 할 수 있습니다.