Title:
ソレノイドアクチュエータ用のアーマチュア
Document Type and Number:
Japanese Patent JP4774126
Kind Code:
B2
Abstract:
An armature (132; 232; 332) for a solenoid actuator is disclosed. The armature comprises a first face (170; 270; 370) comprising a recess (174; 274; 374) suitable for receiving a biasing spring in use of the armature; a second face (172; 272; 372) opposite the first face (170; 270; 370); and fluid communication means (178; 210; 310) for providing a fluid flow path through the armature between the recess (174; 274; 374) and the second face (172; 272; 372) in use of the armature. The first face (170; 270; 370) is uninterrupted by the fluid communication means (178; 210; 310). The invention reduces the risk of cavitation damage during operation of the actuator. In one application, the actuator is used in a fluid pump (100; 200) for a selective catalytic reduction system.
Inventors:
Michael cook
Application Number:
JP2010253002A
Publication Date:
September 14, 2011
Filing Date:
November 11, 2010
Export Citation:
Assignee:
Daimler AG
International Classes:
F04B17/04; F16K31/06
Domestic Patent References:
| JP8135579A | ||||
| JP57196273U | ||||
| JP2008019866A | ||||
| JP10513528A |
Attorney, Agent or Firm:
Shinjiro Ono
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Osamu Hoshino
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Osamu Hoshino