Electromagnetic valve
US8985549B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2011 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Oct 1, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T8/4872
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An electromagnetic valve (32) for use in controlling fluid flow between first and second passageways (P1, P2) in a hydraulic valve block (4), includes a valve body (51). The valve body (51) defines a central axis (A), has a central opening (51A) therethrough, has a lower end (54) adapted to be inserted into a bore (19) of the valve block (4), and is provided with a lower cylindrical opening (70). An armature (56) is axially movable within the valve body (51) and is biased by a spring in one axial direction (57A). A closing element (88) is carried by a lower end (54) of the armature (56). An electromagnetic coil (64) coaxially surrounds the armature (56) and is operable to effect axial movement of the armature (56) in an axial direction opposite the one direction (57B). A valve seat member (62) is carried by the lower end (54) of the valve body (51) and has an orifice (98) providing fluid flow between the first and second valve block passageways (P1, P2). The valve seat member (62) defines a valve seat (96) surrounding the orifice (98) and cooperates with the closing element (88) for selectively closing the orifice (98). The valve seat member (62) includes a cylindrical tubular port…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.