Electromagnetically actuatable valve
| Title: | Electromagnetically actuatable valve |
|---|---|
| Patent Number: | 4,976,405 |
| Publication Date: | December 11, 1990 |
| Appl. No: | 07/485,906 |
| Application Filed: | February 28, 1990 |
| Abstract: | An electromagnetically actuatable valve is proposed that serves in particular as a fuel injection valve for fuel injection systems of internal combustion engines. An armature cooperates with magnet poles, and a bearing cone the length of the generatrix of which is approximately equivalent to the diameter is machined into a valve seat body. The armature and valve seat body may also have bearing faces of calotte shape facing one another. |
| Inventors: | Graner, Juergen (Ludwigsburg, DEX); Kirchner, Marcel (Stuttgart, DEX); Kubach, Hans (Korntal-Muenchingen, DEX) |
| Assignees: | Robert Bosch GmbH (Stuttgart, DEX) |
| Claim: | What is claimed and desired to be secured by Letters Patent of the United States is |
| Claim: | 1. An electromagnetically actuatable valve, in particular a fuel injection valve for fuel injection systems of internal combustion engines, having a core (11, 11') and an armature (10) of soft magnetic material arranged to actuate a valve element (2) adapted to cooperate with a fixed valve seat (4), said valve element (2) provided with a sealing element (3) movable outwardly for opening the valve, said armature (10) being connected to the valve element (2) by a connecting part (9), said connecting part (9) being arranged to protrude through a flow bore (53) of a valve seat body (5), said valve seat body (5) further having a frustoconical bearing cone (27) machined therein a length of a surface line of which is approximately equivalent to a mean diameter thereof, and said armature (10), on its side remote from the core (11, 11'), has a frustoconical surface adapted to engage a majority of a surface portion of the bearing cone. |
| Claim: | 2. A valve as defined by claim 1, in which an undercut (37) is provided in the frustoconical surface of the armature (10). |
| Claim: | 3. A valve as defined by claim 1, in which slits (17) are machined into the bearing cone (27), said slits extending over a portion of the bearing cone (27), terminate at a ring (36), and pierce the valve seat body (5). |
| Claim: | 4. A valve as defined by claim 2, in which slits (17) are machined into the bearing cone (27), said slits extending over a portion of the bearing cone (27), terminate at a ring (36), and pierce the valve seat body (5). |
| Current U.S. Class: | 25112/916; 25112/922; 239/585 |
| Current International Class: | F16K 3106; B05B 132 |
| Patent References Cited: | 4546339 October 1985 Kubach 4666087 May 1987 Jaggle et al. 4778112 October 1988 De Concini et al. |
| Primary Examiner: | Rosenthal, Arnold |
| Attorney, Agent or Firm: | Greigg, Edwin E. |
| Accession Number: | edspgr.04976405 |
| Database: | USPTO Patent Grants |
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| Header | DbId: edspgr DbLabel: USPTO Patent Grants An: edspgr.04976405 RelevancyScore: 696 AccessLevel: 3 PubType: Patent PubTypeId: patent PreciseRelevancyScore: 696.059997558594 |
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| Items | – Name: Title Label: Title Group: Ti Data: Electromagnetically actuatable valve – Name: DocumentID Label: Patent Number Group: Patent Data: 4,976,405 – Name: DateEntry Label: Publication Date Group: Patent Data: December 11, 1990 – Name: DocumentID Label: Appl. No Group: Patent Data: 07/485,906 – Name: DateFiled Label: Application Filed Group: Patent Data: February 28, 1990 – Name: Abstract Label: Abstract Group: Ab Data: An electromagnetically actuatable valve is proposed that serves in particular as a fuel injection valve for fuel injection systems of internal combustion engines. An armature cooperates with magnet poles, and a bearing cone the length of the generatrix of which is approximately equivalent to the diameter is machined into a valve seat body. The armature and valve seat body may also have bearing faces of calotte shape facing one another. – Name: Author Label: Inventors Group: Patent Data: <searchLink fieldCode="ZA" term="%22Graner%2C+Juergen%22">Graner, Juergen</searchLink> (Ludwigsburg, DEX); <searchLink fieldCode="ZA" term="%22Kirchner%2C+Marcel%22">Kirchner, Marcel</searchLink> (Stuttgart, DEX); <searchLink fieldCode="ZA" term="%22Kubach%2C+Hans%22">Kubach, Hans</searchLink> (Korntal-Muenchingen, DEX) – Name: OtherAuthors Label: Assignees Group: Patent Data: <searchLink fieldCode="ZS" term="%22Robert+Bosch+GmbH%22">Robert Bosch GmbH</searchLink> (Stuttgart, DEX) – Name: Comment Label: Claim Group: Patent Data: What is claimed and desired to be secured by Letters Patent of the United States is – Name: Comment Label: Claim Group: Patent Data: 1. An electromagnetically actuatable valve, in particular a fuel injection valve for fuel injection systems of internal combustion engines, having a core (11, 11') and an armature (10) of soft magnetic material arranged to actuate a valve element (2) adapted to cooperate with a fixed valve seat (4), said valve element (2) provided with a sealing element (3) movable outwardly for opening the valve, said armature (10) being connected to the valve element (2) by a connecting part (9), said connecting part (9) being arranged to protrude through a flow bore (53) of a valve seat body (5), said valve seat body (5) further having a frustoconical bearing cone (27) machined therein a length of a surface line of which is approximately equivalent to a mean diameter thereof, and said armature (10), on its side remote from the core (11, 11'), has a frustoconical surface adapted to engage a majority of a surface portion of the bearing cone. – Name: Comment Label: Claim Group: Patent Data: 2. A valve as defined by claim 1, in which an undercut (37) is provided in the frustoconical surface of the armature (10). – Name: Comment Label: Claim Group: Patent Data: 3. A valve as defined by claim 1, in which slits (17) are machined into the bearing cone (27), said slits extending over a portion of the bearing cone (27), terminate at a ring (36), and pierce the valve seat body (5). – Name: Comment Label: Claim Group: Patent Data: 4. A valve as defined by claim 2, in which slits (17) are machined into the bearing cone (27), said slits extending over a portion of the bearing cone (27), terminate at a ring (36), and pierce the valve seat body (5). – Name: CodeClass Label: Current U.S. Class Group: Patent Data: 25112/916; 25112/922; 239/585 – Name: CodeClass Label: Current International Class Group: Patent Data: F16K 3106; B05B 132 – Name: Ref Label: Patent References Cited Group: Patent Data: <searchLink fieldCode="RF" term="%224546339%22">4546339</searchLink> October 1985 Kubach<br /><searchLink fieldCode="RF" term="%224666087%22">4666087</searchLink> May 1987 Jaggle et al.<br /><searchLink fieldCode="RF" term="%224778112%22">4778112</searchLink> October 1988 De Concini et al. – Name: AuthorEditor Label: Primary Examiner Group: Patent Data: <searchLink fieldCode="ZE" term="%22Rosenthal%2C+Arnold%22">Rosenthal, Arnold</searchLink> – Name: AuthorCorporate Label: Attorney, Agent or Firm Group: Patent Data: <searchLink fieldCode="ZG" term="%22Greigg%2C+Edwin+E%2E%22">Greigg, Edwin E.</searchLink> – Name: AN Label: Accession Number Group: ID Data: edspgr.04976405 |
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| RecordInfo | BibRecord: BibEntity: Languages: – Text: English Titles: – TitleFull: Electromagnetically actuatable valve Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Graner, Juergen – PersonEntity: Name: NameFull: Kirchner, Marcel – PersonEntity: Name: NameFull: Kubach, Hans IsPartOfRelationships: – BibEntity: Dates: – D: 11 M: 12 Text: December 11, 1990 Type: published Y: 1990 |
| ResultId | 1 |