Vehicle Washer System Pressure Storage
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Solution Overview
Problem
Windshield and lamp washer systems require high-capacity pumps that are expensive and consume significant electrical power, leading to increased costs and energy consumption.
Innovation Solution
A system comprising a washer fluid container, a pump, a pressurized fluid tank, sensors, and a control unit that stores energy as pressure, allowing a lower-capacity pump to build up pressure when not in use, reducing power requirements and component costs without compromising effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pump with sufficient capacity is used to provide high flow and pressure, then the cleaning effectiveness is improved, but the cost of components and electrical power consumption increase
Solution Approach 1:
The system performs preliminary action by building up pressure in the storage tank during periods when washing is not required. The pump operates at lower capacity to gradually pressurize the tank, storing energy for later use during actual washing operations. This eliminates the need for the pump to operate at high capacity continuously, reducing overall electrical power consumption while maintaining cleaning effectiveness when needed.
Solution Approach 2:
The invention applies hydraulic principles by using a fluid storage tank to store pressurized washer fluid. The system utilizes pressure buildup in the tank to deliver high-flow washing without requiring a high-capacity pump during operation. The hydraulic storage mechanism decouples the pump capacity requirements from the instantaneous flow demands, allowing a smaller, more energy-efficient pump to suffice.
2Reliability
If a pump with sufficient capacity is used to provide high flow and pressure, then the cleaning effectiveness is improved, but the component cost increases
Solution Approach 1:
The system performs preliminary action by building up pressure in the storage tank during periods when washing is not required. The pump operates at lower capacity to gradually pressurize the tank, storing energy for later use during actual washing operations. This eliminates the need for the pump to operate at high capacity continuously, reducing overall electrical power consumption while maintaining cleaning effectiveness when needed.
Solution Approach 2:
The invention applies hydraulic principles by using a fluid storage tank to store pressurized washer fluid. The system utilizes pressure buildup in the tank to deliver high-flow washing without requiring a high-capacity pump during operation. The hydraulic storage mechanism decouples the pump capacity requirements from the instantaneous flow demands, allowing a smaller, more energy-efficient pump to suffice.
3Speed
If a pump with sufficient capacity is used, then the washer system can provide high pressure immediately, but the electrical feeding dimensioning becomes expensive
Solution Approach 1:
The system performs preliminary action by building up pressure in the storage tank during periods when washing is not required. The pump operates at lower capacity to gradually pressurize the tank, storing energy for later use during actual washing operations. This eliminates the need for the pump to operate at high capacity continuously, reducing overall electrical power consumption while maintaining cleaning effectiveness when needed.
Solution Approach 2:
The invention applies hydraulic principles by using a fluid storage tank to store pressurized washer fluid. The system utilizes pressure buildup in the tank to deliver high-flow washing without requiring a high-capacity pump during operation. The hydraulic storage mechanism decouples the pump capacity requirements from the instantaneous flow demands, allowing a smaller, more energy-efficient pump to suffice.
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
The system reduces electrical power demand and component costs while maintaining effective cleaning performance by storing energy as pressure in a tank, enabling efficient operation with a smaller pump.
Implementation Method 1
a washer fluid pump arranged in fluid communication with the washer fluid container, at least one washer fluid pressure tank for storing pressurized fluid
Implementation Method 2
sensor means arranged to provide a signal representing the measured pressure within the at least one washer fluid pressure tank
Data Source
AI summary
A window and/or lamp washer system (100) for a vehicle comprising a washer fluid container (102), a washer fluid pump (104)arranged in fluid communication with the washer fluid container (102), at least one washer fluid pressure tank (108) for storing pressurized fluid, arranged in fluid communication with the washer fluid pump (104) by fluid connecting means (106), and comprising a fluid inlet (110) for receiving pressurized fluid from the pump (104) and at least one fluid outlet (112) for providing pressurized fluid in the form of a washer fluid jet, sensor means (114) arranged to provide a signal representing the measured pressure within the at least one washer fluid pressure tank (108), a control unit (116) connected to the sensor means (114) and the washer fluid pump (104), and arranged to receive the signal, wherein the control unit (116) is configured to operate the washer fluid pump (104) based on the signal, whereby a signal representing a value below a predetermined level cause the pump (104) to increase the pressure.