When manually starting the diesel engine, especially when starting the diesel engine with heavy wear of the injection pump plunger, the general rule is that when the crank speed is low, no sound or sound is injected, and when the crank speed is increased, the sound of injection is Will grow bigger. Naturally, this is due to the internal leakage of the piston pair. When the rotational speed is low, sufficient injection pressure cannot be established. However, there is an abnormal phenomenon, that is, the higher the rotational speed, the smaller the sound of the injected oil, or even the sound of oil injection, and the diesel engine does not start well. The cause of the anomalous phenomenon, the author thinks the following points. (1) The fuel filter is heavily contaminated, the amount of oil filtered is very small, and the high fuel injection pump has no oil available, so the injection sound stops. (2) The oil inlet pipe is not tightly sealed, and the air enters the pipe and slowly stops when it is shaken. However, there is still a little fuel in the pipe and the sound of oil injection is heard when the fuel is slowly cranked. The speed is high and the oil and gas mixture is poured into the column. Above the plug, it no longer emits sound. Both of the above reasons will cause the machine to turn off itself soon after startup (if it can be started). (3) As the fuel is not clean, the nozzle is burned, or the needle valve clearance is too small, etc., the needle valve opens and closes, thus forming a fluid-like non-atomizing fuel injection, and no natural “noisy†spray occurs. Oil sounds. (4) The fuel pump outlet valve coupling is not flexible due to dirt corrosion or small clearance, and once the oil supply speed is increased, it cannot be seated in time to supply oil. In addition, the spring force of the outlet valve spring is too weak, which is also one of the causes of this failure. Even if the diesel engine can be started at this time, irregular intermittent bursts may occur after starting.
Some common disposable surgical medical products include:
1. Surgical masks: used to cover the mouth and nose of medical staff during operations to prevent the spread of germs.
2. Surgical gowns: Medical staff wear these to protect their clothing from contamination during surgery.
3. Surgical Gloves: Healthcare providers wear these gloves to protect their hands from contamination during surgery.
4. Surgical Drape: Used to cover the patient and create a sterile field around the surgical site.
5. Surgical needles: Used to suture incisions and wounds during surgery.
6. Scalpel blades: These are used to make incisions during surgery.
7. Surgical Forceps: Used to grasp and manipulate tissue during surgery.
8. Surgical catheters: These catheters are used to drain fluids from the body during surgery.
Disposable Piercing Guide - WPTC10
Product Description
Disposable surgical medical products refer to items used in surgical operations, which are discarded after one use. These products are used to maintain a sterile environment and prevent the spread of infection during surgery.
Some common disposable surgical medical products include:
1. Surgical masks: used to cover the mouth and nose of medical staff during operations to prevent the spread of germs.
2. Surgical gowns: Medical staff wear these to protect their clothing from contamination during surgery.
3. Surgical Gloves: Healthcare providers wear these gloves to protect their hands from contamination during surgery.
4. Surgical Drape: Used to cover the patient and create a sterile field around the surgical site.
5. Surgical needles: Used to suture incisions and wounds during surgery.
6. Scalpel blades: These are used to make incisions during surgery.
7. Surgical Forceps: Used to grasp and manipulate tissue during surgery.
8. Surgical catheters: These catheters are used to drain fluids from the body during surgery.
Overall, single-use surgical medical products are critical to maintaining a sterile environment and preventing the spread of infection during surgery.
Disposable Use Puncture Guider,All Laparoscopic Instruments,Keyhole Surgery Instruments
Changzhou Weipu Medical Devices Co., Ltd. , https://www.cnweipumedical.com