PATENT CLAIM ANALYSIS

Application Number: 15891909
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-07
Patent Classification: ["123", "490000"]

Abstract:
A drive device capable of detecting individual variations of an injection quantity of a fuel injection device of each cylinder and adjusting a current waveform provided to an injection pulse width and a solenoid such that the individual variations of the fuel injection devices are reduced. The fuel injection device in the present invention includes a valve body that close a fuel passage by coming into contact with a valve seat and opens the fuel passage by separating from the valve seat and a magnetic circuit constructed of a solenoid, a fixed core, a nozzle holder a housing and a needle and when a current is supplied to the solenoid a magnetic suction force acts on the needle and the needle has a function to open the valve body by colliding against the valve body after performing a free running operation and changes of acceleration of the needle due to collision of the needle against the valve body are detected by a current flowing through the solenoid.

Claim (Index 1):
A drive device for driving a fuel. injection device by controlling energization/non-energization of a solenoid of the fuel injection device,\n the fuel injection device includes a valve body that closed by being brought into contact with a valve seat, and opened by being separated from the valve seat, a movable element that is driven by a magnetic suction force from the solenoid and energizes the valve body in a valve opening direction when coming into contact with the valve body, and an air gap provided between the valve body and a contact surface of the movable element and used by the movable element to come in to contact with the valve body after performing a free running operation due to the magnetic suction force from the solenoid, the drive device reduces a valve opening current which started energizing the solenoid in a state in which the valve body is closed, before the valve body starts to open.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 88.0
- Lexical Diversity: 2.06024
- Patent Class: 123.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['14907908', '15314981', '13817069', '15024667', '15430757']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7828281509321003
- 35 USC 102 Novelty (BERT): 0.5434860906584206
- Combined Prediction Score: 0.7588939449047324
- Mean Citation Score: 320.259978
- Max Citation Score: 416.7594
- Similarity Product: 389.4035976158023

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 1

Dataset: test