PATENT CLAIM ANALYSIS

Application Number: 15927869
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-07
Patent Classification: ["417", "420000"]

Abstract:
A unique low cost and efficient submersible, hermetically sealed, variable speed system intended to drive submersible boosting units. The system includes a unique combination of a liquid filled electrical motor connected to a hydraulic coupling and a magnetic coupling driver section, in a hermetically sealed container, with a magnetic coupling follower driving a booster unit. The system further includes integrated cooling, lubrication and control functionality. The drive unit has an actuating system connected to internal guide vanes which controls the liquid flow between the pump impeller and turbine wheel of the hydrodynamic coupling and hence the torque and speed. The combined system is a sealed seal-less and topside-less submersible drive unit that can operate in harsh subsea environments. The drive unit opens up for use of thin walled pressure casings and low pressure electrical penetrators.

Claim (Index 1):
A subsea pressure booster system comprising:\n an electric motor having a motor shaft; an impeller arranged on a first end of the motor shaft; a turbine; a stub shaft; a magnetic coupling driver portion, wherein the turbine is arranged on a first end of the stub shaft, facing the impeller but with a gap between the stub shaft and motor shaft, the arrangement of the turbine and impeller defining a hydrodynamic coupling, and the magnetic coupling driver portion at a second end of the stub shaft; an actuator with variable speed and torque control of the hydrodynamic coupling between the motor shaft and the stub shaft; a hermetically sealed container containing the electric motor, motor shaft, hydrodynamic coupling, stub shaft and magnetic coupling driver portion; a liquid fluid filling the hermetically sealed container, the fluid being a combined hydrodynamic coupling fluid, coolant and lubricant; a pressure compensator, arranged in a liquid fluid flow network system, for balancing the pressure in the hermetically sealed container with an external subsea pressure; a magnetic coupling follower portion; a pressure booster having a pressure booster shaft; a booster compartment having a pressure containment member, wherein the magnetic coupling follower portion is facing the magnetic coupling driver portion, the pressure containment member is arranged between the magnetic coupling driver and follower portions, the booster compartment containing the magnetic coupling follower portion, the pressure booster shaft and the pressure booster.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 90.0
- Lexical Diversity: 1.7381
- Patent Class: 417.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14973960', '14240932', '14291153', '14655835', '13329767']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7784926607035965
- 35 USC 102 Novelty (BERT): 0.563574832475191
- Combined Prediction Score: 0.757000877880756
- Mean Citation Score: 256.470364
- Max Citation Score: 442.95035
- Similarity Product: 411.7977997689248

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test