Compressor Oil Supply Control via Intermittent Groove Communication

Solution Overview

Problem

Existing compressor oil pumping systems for mobile equipment, such as vehicles and airplanes, face inefficiencies due to uncontrollable oil supply variations caused by non-stationary working conditions and vibrations, leading to reduced compressor performance.

Innovation Solution

A compressor design featuring a housing with a separating component dividing it into high-pressure and low-pressure chambers, a crankshaft with oil transmission and transition grooves that stagger and alternate in the axial direction, allowing for on-demand oil pumping by intermittently communicating oil transition grooves with adjacent oil transmission grooves, ensuring maximum lubricating oil utilization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If oil is supplied from high-pressure chamber to low-pressure chamber under pressure difference, then oil pumping adapts to road conditions, but oil supply amount varies significantly and uncontrollably

Engineering Contradiction:

Improveadaptation to road conditionsVSAvoidoil supply amount control

Core Design Contradiction:

Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The patent introduces an oil supply control mechanism as an intermediary component between the high-pressure chamber and low-pressure chamber. This mechanism includes an oil supply passage with a controllable opening, allowing precise regulation of oil flow rate from the high-pressure to low-pressure chamber, thus achieving controllable oil supply while maintaining adaptability to road conditions

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent changes the parameter of oil supply by introducing a controllable opening in the oil supply passage. By adjusting the opening degree of this passage, the oil flow rate can be precisely controlled, transforming the uncontrollable pressure-driven oil supply into a regulated process that maintains both adaptability and control

Inventive Principle:

Principle #35Parameter changes

2Device complexity

If traditional oil pumping mode is used, then structure is simple, but compressor efficiency is low due to uncontrolled oil supply

Engineering Contradiction:

Improvestructure simplicityVSAvoidcompressor efficiency

Core Design Contradiction:

Device complexityVSProductivity

Solution Approach 1:

The patent introduces an oil supply control mechanism as an intermediary component between the high-pressure chamber and low-pressure chamber. This mechanism includes an oil supply passage with a controllable opening, allowing precise regulation of oil flow rate from the high-pressure to low-pressure chamber, thus achieving controllable oil supply while maintaining adaptability to road conditions

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent changes the parameter of oil supply by introducing a controllable opening in the oil supply passage. By adjusting the opening degree of this passage, the oil flow rate can be precisely controlled, transforming the uncontrollable pressure-driven oil supply into a regulated process that maintains both adaptability and control

Inventive Principle:

Principle #35Parameter changes

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 compressor achieves improved efficiency by ensuring a controlled and optimized oil supply, adapting to varying demands and working conditions, thereby enhancing the utilization of lubricating oil and maintaining compressor performance even under non-stationary conditions.

Implementation Method 1

oil for lubrication is supplied from a high pressure side bearing to a low pressure side bearing under the pressure difference between the high-pressure chamber and the low-pressure chamber

Methodology Applied

Scientific EffectPressure difference: Pressure Gradient

Implementation Method 2

during rotation of the crankshaft, each oil transition groove is intermittently in communication with oil transmission grooves adjacent thereto, and the oil transition groove is alternately in communication with two oil transmission grooves at two circumferential sides of the oil transition groove

Methodology Applied

Scientific EffectIntermittent communication: Pump

Data Source

PatentUS11300126B2Compressor having controllable oil supply and vehicle

Publication Date: 2022.04.12 GUANGDONG MEIZHI COMPRESSOR

AI summary

A compressor (100) and a vehicle are disclosed. The compressor (100) includes: a housing (1); a separating component (2) dividing an interior of the housing (1) into a low-pressure chamber (13) and a high-pressure chamber (14); a cylinder component (3); a crankshaft (4); a plurality of oil transmission grooves (5); and at least one oil transition groove (6). During the rotation of the crankshaft (4), each oil transition groove (6) is intermittently in communication with oil transmission grooves (5) adjacent thereto. The oil transition groove (6) is alternately in communication with two oil transmission grooves (5) located at two circumferential sides of the oil transition groove (6). An oil-way passage (31) of the cylinder component (3) is in communication with one of oil transmission grooves (5), and another one of oil transmission grooves (5) or the oil transition groove (6) is in communication with the low-pressure chamber (13).