Hydraulic Valve with Adjustable Locking Device

Patent metadata

Field	Value
Publication number	US-2016356391-A1
Application number	US-201615171097-A
Country	US
Kind code	A1
Filing date	Jun 2, 2016
Priority date	Jun 2, 2015
Publication date	Dec 8, 2016
Grant date	—

Abstract

A hydraulic valve includes a sliding control member that delimits at least one constantly adjustable diaphragm. The sliding control member is configured to be moved in the direction of a longitudinal axis. The hydraulic valve further includes a locking device with a locking member that is configured to be moved counter to the force of a first spring transversely relative to the longitudinal axis. The hydraulic valve further includes at least one catch contour in which the locking member is configured to be engaged in such a positive-locking manner that the sliding control member is releasably retained in a catch position that is associated with the respective catch contour. The position of at least one catch contour is constantly adjustable in such a manner that the free cross-sectional surface-area of the at least one diaphragm is constantly adjustable in the associated catch position.

First claim

What is claimed is:

1 . A hydraulic valve, comprising:
a sliding control member that is configured to be moved in the direction of a longitudinal axis and that delimits at least one constantly adjustable diaphragm; a locking device having a locking member configured to be moved counter to the force of a first spring transversely relative to the longitudinal axis; at least one catch contour in which the locking member is configured to be engaged in such a positive-locking manner that the sliding control member is releasably retained in a catch position that is associated with the respective catch contour, wherein a position of at least one catch contour is constantly adjustable in such a manner that a free cross-sectional surface-area of the at least one diaphragm is constantly adjustable in the associated catch position.

2 . The hydraulic valve according to claim 1 , wherein:
the at least one catch contour includes a first catch contour that is securely arranged on an outer peripheral face of the sliding control member, the first catch contour extends helically with respect to the longitudinal axis, and a rotation position of the sliding control member is constantly adjustable with respect to the longitudinal axis.

3 . The hydraulic valve according to claim 2 , wherein the first catch contour includes two first catch contours that are associated with different catch positions and that have an opposing pitch direction.

4 . The hydraulic valve according to claim 2 , wherein:
the at least one catch contour includes a second catch contour that is securely arranged on the outer peripheral face of the sliding control member such that the first catch contour and the second catch contour define different catch positions, and the second catch contour extends in an annular manner with respect to the longitudinal axis.

5 . The hydraulic valve according to claim 2 , further comprising:
a housing; and a separate first adjustment member secured in a rotationally adjustable manner on an outer side of the housing, the sliding control member coupled in terms of movement to the first adjustment member with respect to a rotation.

6 . The hydraulic valve according to claim 5 , wherein:
the first adjustment member is configured in a pot-like manner, and a second spring is arranged within the first adjustment member, the second spring acting on the sliding control member in the direction of the longitudinal axis.

7 . The hydraulic valve according to claim 1 , wherein:
the locking member and the first spring are received in the sliding control member, and at least one catch contour is arranged on a separate second adjustment member that is secured to a housing of the hydraulic valve so as to be adjustable in a linear manner with respect to the longitudinal axis.

8 . The hydraulic valve according to claim 7 , wherein the at least one catch contour is configured in a rotationally symmetrical manner with respect to the longitudinal axis.

9 . The hydraulic valve according to claim 7 , wherein:
the second adjustment member has a thread with a center axis that coincides with the longitudinal axis, and the thread is in screwed engagement with a counter-thread on the housing.

10 . The hydraulic valve according to claim 7 , further comprising a separate union nut that is in screwed engagement with the housing such that the union nut is configured to be moved in the direction of the longitudinal axis, the union nut coupled to the second adjustment member in terms of movement in the direction of the longitudinal axis.

Assignees

• Bosch Gmbh Robert

Inventors

• Kunz Reiner
• Keyl Christoph
• Knapper Steffen

Classifications

• F16K31/1221

  one side of the piston being spring-loaded · CPC title

• F15B15/26 Primary

  Locking mechanisms · CPC title

• F16K35/022 Primary

  the locking mechanism being actuated by a separate actuating element · CPC title

• F16K35/06

  using a removable actuating or locking member, e.g. a key (F16K35/10, F16K35/12 take precedence) · CPC title

• F15B2015/268

  Fluid supply for locking or release independent of actuator pressurisation · CPC title