Pneumatic Seeder Air Supply Line Connection

Solution Overview

Problem

The existing pneumatic precision seed drills have a complex setup due to separate blowers for the precision seed drill and its associated distribution device, making the application of compressed air cumbersome.

Innovation Solution

Connecting the air pressure supply line for the distribution device directly to the overpressure area of the precision seed drill's housing, eliminating the need for a separate blower by using the existing fan-generated overpressure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If separate blowers are assigned to the precision seed drill and the distribution device, then each component receives sufficient compressed air for operation, but the device complexity increases and the application becomes cumbersome

Engineering Contradiction:
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the compressed air supply system by connecting the distribution device's air pressure supply line to the overpressure area of the precision seed drill's housing. This eliminates the need for a separate blower for the distribution device, reducing device complexity while maintaining reliable compressed air supply to both components through the shared overpressure area.

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If a separate blower is used for the distribution device, then the pneumatic dosing device operates reliably, but the overall system complexity and number of components increases

Engineering Contradiction:
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The precision seed drill's blower and overpressure area are made multi-functional by enabling them to serve both the precision seed drill and the distribution device. The overpressure area generated by the single blower is utilized by both the separating drum and the pneumatic dosing device, eliminating the need for a second dedicated blower while maintaining reliable operation of both systems.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Simplifies the application of compressed air, reducing complexity and enhancing operational efficiency by leveraging the existing overpressure within the precision seed drill's housing.

Implementation Method 1

The reservoir 2 and the separating housing 1 are subjected to overpressure on the separating side of the drum by the air supply line 4 connected to the blower 3. This creates a pressure difference between the interior of the separating drum and the outside of the separating drum in its separating area.

Methodology Applied
Scientific EffectPressure difference: Pressure Gradient

Implementation Method 2

The seed grains separated by the separating drum can be fed to the dispensing elements by means of these dispensing lines 5 by means of an air flow via the dispensing lines 5.

Methodology Applied
Scientific EffectAir flow transport: Fluid Spray

Implementation Method 3

The precision seed drill has the additional distribution device 6 for distributing another material with the pneumatic conveying device 7, which is designed as a microgranular spreader.

Methodology Applied
Scientific EffectPneumatic conveying: Fluid Spray

Data Source

PatentEP2564681B1Pneumatic single grain seeder
Publication Date: 2014.06.04
  • EP2564681B1 patent drawingFigure 1

AI summary

The seeder has a seed storage container (2) including a housing (1) and a rotatably driven separator drum having perforations around the circumference of the drum, where a pressure difference between an inner region and an outer region of the drum is produced by a fan (3). A distribution device (6) is provided for distributing a material with a pneumatic conveyor (7), and a pressure generator is connected to an air pressure supply line (8) associated with a microgranulator. The air pressure supply line is connected with a connection terminal (10) in a separation area of the housing.