Lubricant supply safety system
First Claim
1. A lubricant supply safety system for a machine, comprising a reservoir (6) for lubricating oil, a hydraulic motor (8) driving one or more feeder pumps (11, 12, 13, 14) supplying lubricating oil from said reservoir to various points in said machine, a first pump (1) for supply of lubricating oil from said reservoir to drive said hydraulic motor (8) under normal operating conditions, a second pump (2) for supply of lubricating oil from said reservoir (6) to drive said hydraulic motor (8) in the event of a failure of said first pump (1), said second pump (2) being continuously driven by said machine and being automatically engaged by means of a valve device (7) to drive said hydraulic motor (8) immediately upon detection of a malfunction of said first pump (1).
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Accused Products
Abstract
A lubricant supply safety system for a machine comprises a reservoir for lubricating oil, a hydraulic motor driving one or more feeder pumps supplying lubricating oil from the reservoir to various points in the machine, a first pump for supply of lubricating oil from the reservoir to drive the hydraulic motor under normal operating conditions, and a second pump driven by the machine for supply of lubricating oil from the reservoir to drive the hydraulic motor in the event of failure of the first pump.
35 Citations
8 Claims
- 1. A lubricant supply safety system for a machine, comprising a reservoir (6) for lubricating oil, a hydraulic motor (8) driving one or more feeder pumps (11, 12, 13, 14) supplying lubricating oil from said reservoir to various points in said machine, a first pump (1) for supply of lubricating oil from said reservoir to drive said hydraulic motor (8) under normal operating conditions, a second pump (2) for supply of lubricating oil from said reservoir (6) to drive said hydraulic motor (8) in the event of a failure of said first pump (1), said second pump (2) being continuously driven by said machine and being automatically engaged by means of a valve device (7) to drive said hydraulic motor (8) immediately upon detection of a malfunction of said first pump (1).
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8. A lubricant supply safety system for a machine, comprising a reservoir (6) for lubricating oil, a hydraulic motor (8) driving one or more feeder pumps (11, 12, 13, 14) supplying lubricating oil from said reservoir to various points in said machine, a first pump (1) for supply of lubricating oil from said reservoir to drive said hydraulic motor (8) under normal operating conditions, a second pump (2) for supply of lubricating oil from said reservoir (6) to drive said hydraulic motor (8) in the event of a failure of said first pump (1), said second pump (2) being continuously driven by said machine and being automatically engaged by means of a valve device (7) to drive said hydraulic motor (8) immediately upon detection of a malfunction of said first pump (1), and wherein the lubricating oil reservoir is divided into a first (6a) and a second (6b) compartment by means of an overflow barrier (16), over which overflowing oil flows from the first (6a) to the second (6b) compartment, said first and second pumps (1, 2) drawing oil from said second compartment, said feeder pumps (11, 12, 13, 14) drawing oil from said first compartment (6a).
Specification