Modular progressive hydraulic distributor for lubrication systems
AssigneeDROPSA S.p.A.
InventorGualtiero Divisi
Life of this patent
Estimating the term…
Abstract
A progressive hydraulic distributor which comprises a control block containing three pistons disposed at the vertices of an ideal triangle and ducting for the lubricant fluid, and is removably supported on a second block comprising only ducts with a purely distributing function. The connections between the ducts of the second block and the ducting of the first block are made by way of several ports, and in particular by passage ports comprising two distinct holes which are in mutual communication but can be separated from each other by O-rings, these connections being such as to enable the output fluid flow rate to be varied without disconnecting any pipe connected to a user.
Claims7
A progressive hydraulic distributor for distributing a pressurized fluid lubricant, comprising:
- (a) a control block having a plurality of cylinders formed therein, and a plurality of consecutively displaceable working pistons, each mounted in a respective cylinder for displacement therein;
- (b) a distribution block on which the control block is mounted at an interface, and having inlet means and outlet means into and from which the lubricant respectively flows;
- (c) control duct means within the control block and extending from the interface to the cylinders, for consecutively conveying the lubricant to the cylinders;
- (d) distribution duct means within the distribution block and extending from the inlet means to the interface, for conveying the lubricant to the control duct means, and also extending from the interface to the outlet means, for conveying the lubricant to the outlet means;
- and
- (e) flow control means removably mounted at the interface, for controlling the flow of lubricant to the outlet means.
Dependencies are inferred from the claim text.