← Back to Patent Explorer
EP0052405A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Device for controlling the pressure difference in a hydraulic motor

Assignee: Rheinmetall Air Defence AG
•
Filing: 1981-11-11
•
Granted: —
•
Expires: 2001-11-11
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract To control the pressure difference in a hydraulic motor, it is known to use a single servo-valve with which both the pressure in the feed line to the hydraulic motor and the pressure in the return line are controlled. This has the disadvantage that the clamping pressure in the hydraulic motor (27) is high. To reduce the clamping pressure, there are according to the invention two control valves (28, 29) with which the pressures in the feeder and return line can be controlled independently of one another. <IMAGE>

Inventors

  • 👤 Pierre Dr. Bohler

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-04 06:55
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/02; F15B2211/00; F15B2211/20; F15B2211/205; F15B2211/2053; F15B2211/20538; F15B2211/25; F15B2211/253; F15B2211/30; F15B2211/305; F15B2211/30525; F15B2211/355; F15B2211/40; F15B2211/405; F15B2211/40515; F15B2211/415; F15B2211/41572; F15B2211/41581; F15B2211/42; F15B2211/428; F15B2211/455; F15B2211/46; F15B2211/60; F15B2211/63; F15B2211/6303; F15B2211/6306; F15B2211/6313; F15B2211/635; F15B2211/67; F15B2211/70; F15B2211/705; F15B2211/7058

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

DE1923148A1 Cited
DE2305825A1 Cited
DE2326131A1 Cited

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag