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Electromagnetic Fuel Injection Valve
Abstract: To provide an electromagnetic fuel injection valve in which a coil spring provided in a compressed state between a fixed core and a movable core does not experience a buckling phenomenon even in an engine high speed rotation region and can maintain a normal spring rate, thus enabling opening/closing characteristics of a valve body to be stabilized. [MEANS FOR SOLUTION] A coil spring 23 provided in a compressed state between a fixed core 5 and a movable core 12 is formed so that a coil center diameter D of the coil spring 23 decreases in going from opposite end parts 23a, 23b of the coil spring 23 toward a middle part thereof. FIGURE 3
Notices, Deadlines & Correspondence
Patent Information
Applicants
HITACHI ASTEMO, LTD.
Inventors
1. YOSHIMURA, Kenichi
2. MURASE, Takayuki
Specification
Claims:PLEASE SEE THE ATTACHMENTS , Description:PLEASE SEE THE ATTACHMENTS
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 202244009657-STATEMENT OF UNDERTAKING (FORM 3) [23-02-2022(online)].pdf | 2022-02-23 |
| 2 | 202244009657-REQUEST FOR EXAMINATION (FORM-18) [23-02-2022(online)].pdf | 2022-02-23 |
| 3 | 202244009657-PROOF OF RIGHT [23-02-2022(online)].pdf | 2022-02-23 |
| 4 | 202244009657-PRIORITY DOCUMENTS [23-02-2022(online)].pdf | 2022-02-23 |
| 5 | 202244009657-JP 2021-035662-DASCODE-D77A [23-02-2022].pdf | 2022-02-23 |
| 6 | 202244009657-FORM 18 [23-02-2022(online)].pdf | 2022-02-23 |
| 7 | 202244009657-FORM 1 [23-02-2022(online)].pdf | 2022-02-23 |
| 8 | 202244009657-DRAWINGS [23-02-2022(online)].pdf | 2022-02-23 |
| 9 | 202244009657-DECLARATION OF INVENTORSHIP (FORM 5) [23-02-2022(online)].pdf | 2022-02-23 |
| 10 | 202244009657-COMPLETE SPECIFICATION [23-02-2022(online)].pdf | 2022-02-23 |
| 11 | 202244009657-FORM-26 [09-05-2022(online)].pdf | 2022-05-09 |
| 12 | 202244009657-FORM 3 [22-07-2022(online)].pdf | 2022-07-22 |
| 13 | 202244009657-FER.pdf | 2022-09-13 |
| 14 | 202244009657-Correspondence_Form 1 And Form 26_12-01-2023.pdf | 2023-01-12 |
| 15 | 202244009657-OTHERS [13-03-2023(online)].pdf | 2023-03-13 |
| 16 | 202244009657-FER_SER_REPLY [13-03-2023(online)].pdf | 2023-03-13 |
| 17 | 202244009657-DRAWING [13-03-2023(online)].pdf | 2023-03-13 |
| 18 | 202244009657-COMPLETE SPECIFICATION [13-03-2023(online)].pdf | 2023-03-13 |
| 19 | 202244009657-CLAIMS [13-03-2023(online)].pdf | 2023-03-13 |
| 20 | 202244009657-FORM 3 [21-09-2023(online)].pdf | 2023-09-21 |
| 21 | 202244009657-US(14)-HearingNotice-(HearingDate-28-02-2024).pdf | 2024-01-31 |
| 22 | 202244009657-Correspondence to notify the Controller [23-02-2024(online)].pdf | 2024-02-23 |
| 23 | 202244009657-Written submissions and relevant documents [12-03-2024(online)].pdf | 2024-03-12 |
| 24 | 202244009657-Verified English translation [12-03-2024(online)].pdf | 2024-03-12 |
| 25 | 202244009657-Retyped Pages under Rule 14(1) [12-03-2024(online)].pdf | 2024-03-12 |
| 26 | 202244009657-FORM 13 [12-03-2024(online)].pdf | 2024-03-12 |
| 27 | 202244009657-Annexure [12-03-2024(online)].pdf | 2024-03-12 |
| 28 | 202244009657-2. Marked Copy under Rule 14(2) [12-03-2024(online)].pdf | 2024-03-12 |
| 29 | 202244009657-PatentCertificate14-03-2024.pdf | 2024-03-14 |
| 30 | 202244009657-IntimationOfGrant14-03-2024.pdf | 2024-03-14 |
Search Strategy
| 1 | 202244009657E_13-09-2022.pdf |