Title:
【発明の名称】ねじタイプバルブハウジング
Document Type and Number:
Japanese Patent JPH03500076
Kind Code:
A
Abstract:
PCT No. PCT/EP88/00513 Sec. 371 Date Jul. 13, 1990 Sec. 102(e) Date Jul. 13, 1990 PCT Filed Jun. 8, 1988 PCT Pub. No. WO88/09890 PCT Pub. Date Dec. 15, 1988.The stepped borehole and the valve housing are normally provided with cylindrical circumferential sections, which have been subjected to fine finishing and which are in exact axial alignment with the borehole axis, O-rings being provided as sealing elements between these cylindrical circumferential sections. The production is expensive and requires a lot of work. The new connection is to be simpler from the point of view of production technology, easy to repair and easy to assemble. In order to achieve this, each sealing element (30, 30'), which is positioned within the tapped borehole (3, 3', 3'', 3''') is a soft metal ring which has been cold-formed between the diametral step (15, 13) and a support surface of the housing under the influence of the thread tightening tension and which, due to its elasticity, compensates tolerances or inaccuracies resulting from the manufacturing process, ensures perfect sealing and contributes to a simplification of the manufacturing process and of the assembly operation. Such connections are suitable for hydraulic control devices in the case of which preferably exchangeable pilot, control, non-return, safety and other valves have to be screwed into a block for fulfilling the control function.
Inventors:
Bruner, Rudolf
Application Number:
JP50471188A
Publication Date:
January 10, 1991
Filing Date:
June 08, 1988
Export Citation:
Assignee:
Heilmei und Bainline Fabric Fuhl Oel Hydrolic Gaem Behr und Company, Carga
International Classes:
F16J15/06; F16J15/10; F16K27/00; (IPC1-7): F16J15/06; F16K27/00
Domestic Patent References:
| JPS6142147A | 1986-02-28 | |||
| JPS6117470B2 | 1986-05-07 | |||
| JP61145166B | ||||
| JP52074958B |
Foreign References:
| DE2805040A1 | 1979-08-09 |
Attorney, Agent or Firm:
Akira Asamura (3 outside)