Valve cartridge for a magnet valve, and a corresponding magnet valve
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F16K-031/02
F16K-015/04
F16K-015/18
B60T-008/36
출원번호
US-0377125
(2010-04-07)
등록번호
US-9090236
(2015-07-28)
우선권정보
DE-10 2009 026 850 (2009-06-09)
국제출원번호
PCT/EP2010/054587
(2010-04-07)
§371/§102 date
20120223
(20120223)
국제공개번호
WO2010/142476
(2010-12-16)
발명자
/ 주소
Fricke-Schmidt, Joerg
출원인 / 주소
Robert Bosch GmbH
대리인 / 주소
Maginot Moore & Beck LLP
인용정보
피인용 횟수 :
0인용 특허 :
6
초록▼
A valve cartridge for a magnet valve includes a capsule, a valve core, a valve body, a lower valve part and a flat filter. The valve core has a first end and a second end. The first end is inserted into the capsule. The valve body has a main valve seat. The valve body is inserted into the second end
A valve cartridge for a magnet valve includes a capsule, a valve core, a valve body, a lower valve part and a flat filter. The valve core has a first end and a second end. The first end is inserted into the capsule. The valve body has a main valve seat. The valve body is inserted into the second end. The lower valve part is axially supported on the valve core and includes a nonreturn valve. The nonreturn valve includes a nonreturn valve seat and a nonreturn valve closing element. The flat filter has an inserted filter screen for filtering dirt particles. The filter screen is connected to the lower valve part. The nonreturn valve seat is placed in the lower valve part. An opening stroke of the nonreturn valve closing element is limited by an abutment contour arranged on the flat filter level with the filter screen.
대표청구항▼
1. A valve cartridge for a magnet valve comprising: a capsule;a valve body having a main valve seat;a valve core having a first end inserted into the capsule and a second end configured to receive the valve body;a lower valve part axially supported on the valve core, the lower valve part including a
1. A valve cartridge for a magnet valve comprising: a capsule;a valve body having a main valve seat;a valve core having a first end inserted into the capsule and a second end configured to receive the valve body;a lower valve part axially supported on the valve core, the lower valve part including a nonreturn valve with a nonreturn valve seat and a nonreturn valve closing element, the nonreturn valve seat being formed in the lower valve part;a flat filter connected to the lower valve part, the flat filter defining an abutment contour with an upper surface configured to directly contact the nonreturn valve closing element so as to limit an opening stroke of the nonreturn valve closing element; anda filter screen disposed in the flat filter and configured to filter dirt particles passing therethrough, the filter screen being positioned in the flat filter such that (i) an upper surface of the filter screen is separate from and arranged level with the upper surface of the abutment contour and (ii) an outer periphery of the filter screen abuts an inner radius of the abutment contour. 2. The valve cartridge as claimed in claim 1, wherein the flat filter has at least one filter foot with a predetermined filter foot length. 3. The valve cartridge as claimed in claim 2, wherein material of the at least one filter foot is configured to be upset for axial tolerance compensation. 4. The valve cartridge as claimed in claim 3, wherein: the abutment contour defines an abutment contour wall thickness, anda compensating space is arranged underneath the filter screen and is configured to accommodate the upset material of the at least one filter foot, the compensating space including a compensating space length that includes substantially all of the abutment contour wall thickness. 5. The valve cartridge as claimed in claim 4, further comprising a fluid block defining an internal bore into which the valve cartridge is partially inserted, wherein: a bore length is defined from an upper surface of the fluid block to the end of the bore,a valve core distance is defined from the upper surface of the fluid block to the second end of the valve core,a lower valve part thickness is defined from an upper surface of the lower valve part adjacent the valve core to a lower surface of the lower valve part adjacent the flat filter,a screen distance is defined from an upper surface of the flat filter adjacent the lower surface of the lower valve part to underneath the filter screen, andthe compensating space length is further defined as the difference between the bore length and the sum of the valve core distance, the lower valve part thickness, and the screen distance. 6. The valve cartridge as claimed in claim 1, wherein the lower valve part is configured as a plastic injection molding having a substantially constant wall thickness. 7. The valve cartridge as claimed in claim 1, wherein the valve core is configured as a one-piece slotted sleeve, and the valve body is configured as a hood-shaped sleeve, and wherein the valve body is pressed into the second end of the valve core such that the main valve seat is arranged within the valve core. 8. The valve cartridge as claimed in claim 1, further comprising: a fluid block; anda caulking bush, wherein the capsule is configured as a valve component which forms an atmospheric seal and is caulked directly to the fluid block in a caulking region via the caulking bush. 9. The valve cartridge as claimed in claim 1, wherein the flat filter is connected to the lower valve part via a retention mechanism. 10. The valve cartridge as claimed in claim 9, wherein the retention mechanism includes at least one retaining tab configured to operatively engage a corresponding groove segment formed in the lower valve part. 11. The valve cartridge as claimed in claim 1, wherein: the abutment contour has a lower surface opposed to the upper surface of the abutment contour, andthe filter screen has a lower surface opposed to the upper surface of the filter screen, the lower surface of the filter screen being offset from the lower surface of the abutment contour in a direction towards the nonreturn valve closing element. 12. The valve cartridge as claimed in claim 11, further comprising a fluid block defining an internal bore into which the valve cartridge is partially inserted, wherein: the internal bore has a bore end that faces the flat filter,the lower surface of the abutment contour and the bore end define a first compensating space length therebetween, andthe lower surface of the filter screen and the bore end define a second compensating space length therebetween, the second compensating space length being greater than the first compensating space length. 13. A magnet valve comprising: a magnet subassembly producing a magnetic force;a magnetic armature movable by the magnetic force;a valve cartridge including: a capsule,a valve body having a main valve seat,a valve core having a first end inserted into the capsule and a second end configured to receive the valve body,a lower valve part axially supported on the valve core, the lower valve part including a nonreturn valve with a nonreturn valve seat and a nonreturn valve closing element, the nonreturn valve seat being formed in the lower valve part,a flat filter connected to the lower valve part, the flat filter defining an abutment contour with an upper surface configured to directly contact the nonreturn valve closing element so as to limit an opening stroke of the nonreturn valve closing element, anda filter screen disposed in the flat filter and configured to filter dirt particles passing therethrough, the filter screen being positioned in the flat filter such that (i) an upper surface of the filter screen is separate from and arranged level with the upper surface of the abutment contour and (ii) an outer periphery of the filter screen abuts an inner radius of the abutment contour; anda plunger having a closing element with a sealing element, the sealing element being configured to enter the main valve seat of the valve body in a sealing manner so as to perform a sealing function,wherein the magnet armature is guided movably within the valve cartridge and moves the plunger, which is guided within the valve core.
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이 특허에 인용된 특허 (6)
Megerle Friedrich,DEX ; Schnalzger Guenther,DEX ; Griffiths Andrew-James,DEX, Electrically controllable valve, especially for installation in a hydraulic brake system of a vehicle.
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