PATENT CLAIM ANALYSIS

Application Number: 15757438
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-08
Patent Classification: ["192", "070110"]

Abstract:
Provided is a hydraulic power transmission device enabling to minimize a pressure loss in an oil passage downstream from a piston chamber of a hydraulic clutch, and to properly prevent reduction in transmission torque capacity in the hydraulic clutch. Left and right pressure regulating valves ( 8 L,  8 R) regulating pressure of oil flowing out from piston chambers ( 59 L,  59 R) of left and right clutch devices ( 5 L,  5 R) are arranged adjacent to a downstream of the piston chamber ( 59 ). This can shorten an oil passage from the piston chamber ( 59 ) to the pressure regulating valve ( 8 ) and minimize pressure loss in the oil passage. Due to better flexibility of arrangement of the pressing load receiving member ( 82 ) receiving a pressing force (thrust) of the piston member ( 57 ), thrust efficiency of the hydraulic piston ( 57 ) improves to properly prevent reduction in transmission torque capacity in the hydraulic clutch ( 5 ).

Claim (Index 1):
A hydraulic power transmission device comprising:\n an input shaft to which a driving force from a drive source is transmitted; a hydraulic clutch disconnecting the driving force transmitted to the input shaft; and an output shaft connected to the input shaft via the hydraulic clutch, wherein the hydraulic clutch includes frictional engagement elements for disconnecting the driving force and a piston chamber applying a pressing force to the frictional engagement elements, the hydraulic power transmission device further comprising a pressure regulating valve communicating to the piston chamber and regulating pressure of hydraulic fluid flowing out from the piston chamber, wherein the pressure regulating valve is arranged adjacent to the piston chamber.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 90.0
- Lexical Diversity: 2.69118
- Patent Class: 192.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15869065', '14436378', '12109070', '13295521', '13500256']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.833809990845881
- 35 USC 102 Novelty (BERT): 0.4609398444138086
- Combined Prediction Score: 0.7965229762026739
- Mean Citation Score: 250.76578000000003
- Max Citation Score: 293.03375
- Similarity Product: 240.89123396359383

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