On March 1, AQSIQ’s Law Enforcement Supervision Department interviewed Dongfeng Honda Motor Co., Ltd. on the issue of “oil increase†in models such as Dongfeng Honda Siwei (CR-V), which has received extensive attention from consumers recently, and asked production companies to attach great importance to it. The problems reflected by consumers, in strict accordance with laws and regulations to eliminate vehicle defects. The General Administration of Quality Supervision, Inspection and Quarantine (AQSIQ) pointed out that the recall measures proposed by the production enterprises are still not perfect. The production companies should further improve the technical solutions, take effective measures as soon as possible to eliminate defects, and propose to take measures such as extending the warranty period. Consumer concerns.
It is reported that Dongfeng Honda issued an official statement on February 12 to explain the "oil increase problem" of its CR-V and Civic models, and gave the final solution, while claiming that it will be 2 Both vehicles were recalled at the end of the month and March respectively. However, this so-called final solution actually does not completely solve the "oil increase problem." In this regard, Car Quality Network has published relevant reports and questioned the feasibility of this solution.
An impulse turbine is a type of Steam Turbine where the rotor derives its rotational force from the impact force, or the direct push of steam on the blades.
The impulse turbine consists of a rotor mounted on a shaft that is free to rotate. Attached to the rotor are a set of curved blades. Nozzles then direct the high pressure and high temperature steam towards the blades of the turbines. The blades catch the impact force of the rapidly moving steam and rotate from this force.
The Impulse Principle
The steam at high pressure enters through a stationary nozzle of a steam turbine, as a result the pressure of the steam is decrease and an increase in steam velocity. As a result of increased steam velocity steam pass through the nozzle in the form of a high-speed jet. This high-velocity steam hit the properly shaped turbine blade, as a result, the steam flow direction is changed. The effect of this change in direction of the steam flow will produce an impulse force. This force cause the blade move, thereby the rotor will start to rotate.
The force applied to the blade is developed by causing the steam to change the direction of flow (Newton`s 2nd Law – change of momentum). The change of momentum produces the impulse force.
Impulse Turbine Working:
In the impulse turbine pressure drops and the velocity increases as the steam passes through the nozzles. When the steam passes through the moving blades the velocity drops but the pressure remains the same.
The fact that the pressure does not drop across the moving blades is the distinguishing feature of the impulse turbine. The pressure at the inlet of the moving blades is same as the pressure at the outlet of moving blades.
Impulse Steam Turbine
Shandong Qingneng Power Co., Ltd. , https://www.steamturbine.be