Assembly of lubrication system for fluid machinery

Patent metadata

Field	Value
Publication number	US-10316953-B2
Application number	US-201615379636-A
Country	US
Kind code	B2
Filing date	Dec 15, 2016
Priority date	Nov 4, 2016
Publication date	Jun 11, 2019
Grant date	Jun 11, 2019

Abstract

An assembly of a lubrication system for fluid machinery includes a transmission shaft, an oil-injection insulating ring and a labyrinth ring. The transmission shaft defines axially power and passive sides. The power side includes a body unit having first and second bearings. The oil-injection insulating ring located between the first and second bearings sleeves the transmission shaft and connects a fuel-supply looping having outer and inner rings. The outer ring has at least one first hole communicatively connected with the fuel-supply looping. The labyrinth ring having first and second axial ends has outer diameters tapering from the second axial end to the first axial end. The first and second axial ends face the power and passive sides, respectively. A circumference of the labyrinth ring includes circular grooves to form a circumferential step-like structure. The labyrinth ring sleeves the transmission shaft and is embedded into the body unit.

First claim

What is claimed is:

1. An assembly of a lubrication system for fluid machinery, comprising:
a transmission shaft, defining opposing axial ends to a power side and a passive side, the power side having a body unit further including thereinside a first bearing and a second bearing;
an oil-injection insulating ring, sleeving the transmission shaft, located between the first bearing and the second bearing, connecting communicatively a fuel-supply looping, including an outer ring and an inner ring, the outer ring further having at least one first hole communicatively connected with the fuel-supply looping; and
a labyrinth ring, having a first axial end and a second axial end opposing axially to the first axial end, outer diameters thereof being tapered from the second axial end to the first axial end, the first axial end facing the power side while the second axial end faces the passive side, a circumferential surface thereof connecting the first axial end and the second axial end and including a plurality of circular grooves so as to form a circumferential step-like structure having at least three stages, wherein the labyrinth ring is to sleeve the transmission shaft and to be embedded into a volute cover of the body unit, and wherein the volute cover is formed to have a counter structure for engaging the circumferential step-like structure of the labyrinth ring,
wherein the body unit includes an exhaust passage, a first space is formed between the oil-injection insulating ring and the labyrinth ring, and one end of the exhaust passage is connected spatially with the first space while another end thereof is connected spatially to the atmosphere.

2. The assembly of a lubrication system for fluid machinery of claim 1 , wherein the oil-injection insulating ring includes a locating pin for engaging a casing in the power side.

3. The assembly of a lubrication system for fluid machinery of claim 1 , wherein, in each of two opposing lateral sides of the oil-injection insulating ring, an arcuate recess is formed between the outer ring and the inner ring by having a center of the arcuate recess to be concentric with the oil-injection insulating ring, the arcuate recess further having at least one second hole to communicate spatially with the at least one first hole.

4. The assembly of a lubrication system for fluid machinery of claim 1 , further including an oil slinger located between the oil-injection insulating ring and the labyrinth ring, the oil slinger sleeving transmission shaft and including at least one circular flange extending radially and outwards.

5. The assembly of a lubrication system for fluid machinery of claim 4 , wherein a free radial end of the at least one circular flange further has a plurality circular grooves.

6. The assembly of a lubrication system for fluid machinery of claim 4 , further including a plurality of oil grooves located on the transmission shaft by a surrounding manner, wherein the oil slinger is positioned between the plurality of oil grooves and the labyrinth ring.

7. The assembly of a lubrication system for fluid machinery of claim 1 , wherein the body unit includes an oil-return line having a first end and a second end opposing to the first end; the first end, the first space being connected spatially with the second space, the second end being connected spatially with a third space of the body unit where the gearbox is located.

8. The assembly of a lubrication system for fluid machinery of claim 7 , wherein the first end is connected spatially with the second space locating the oil-injection insulating ring.

Assignees

• Ind Tech Res Inst

Inventors

• Weng Ying-Che
• Wu Teng-Yuan
• Huang Jer-Lin
• Ho Jyh-Nan
• Yang Chun-Hsiang

Classifications

• F16H57/0018

  Shaft assemblies for gearings (camshafts with single track cams F16H53/02) · CPC title

• F16H57/0409 Primary

  characterised by increasing efficiency, e.g. by reducing splash losses · CPC title

• F16J15/447

  Labyrinth packings · CPC title

• F16H57/021

  Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings · CPC title

• F16H57/042

  Guidance of lubricant · CPC title