Esemokwu n'okpuru njikwa (kpachara anya).

Ma ọ masịrị anyị ma ọ bụ na ọ masịghị anyị, ihe omume esemokwu na-esonyere ihe niile na-akpụ akpụ. Ọnọdụ ahụ adịghị iche na engines, ya bụ na kọntaktị nke pistons na mgbanaka na akụkụ dị n'ime nke cylinders, i.e. na ha ezigbo elu. Ọ bụ n'ebe ndị a ka nnukwu mfu sitere na esemokwu na-emerụ ahụ na-eme, yabụ ndị mmepe nke draịva ọgbara ọhụrụ na-anwa ibelata ha dịka o kwere mee site na iji teknụzụ ọhụụ.

Ọ bụghị naanị okpomọkụ                                                                                                                        

Iji ghọta nke ọma ihe ọnọdụ dị na engine, ọ bụ iji tinye ụkpụrụ na okirikiri nke a spark engine iru 2.800 K (banyere 2.527 degrees C), na dizel (2.300 K - banyere 2.027 degrees C). . Okpomọkụ dị elu na-emetụta mgbasawanye ọkụ nke otu a na-akpọ cylinder-piston, nke nwere pistons, mgbanaka piston na cylinders. Nke ikpeazụ nwekwara deform n'ihi esemokwu. Ya mere, ọ dị mkpa iji wepụ okpomọkụ nke ọma na usoro jụrụ oyi, yana iji hụ na ike zuru ezu nke ihe nkiri mmanụ a na-akpọ n'etiti pistons na-arụ ọrụ na cylinders ọ bụla.

Ihe kacha mkpa bụ tightness.    

Akụkụ a na-egosipụta nke ọma na isi ọrụ nke piston otu a kpọtụrụ aha n'elu. Ọ dị mma ịsị na piston na mgbanaka piston na-aga n'ihu n'elu cylinder na ọsọ nke ruru 15 m / s! Ka a sịkwa ihe mere na a na-akwụ ụgwọ dị ukwuu iji hụ na tightness nke oghere ọrụ nke cylinders. Gịnị mere o ji dị mkpa otú ahụ? Ngwunye nke ọ bụla n'ime sistemu niile na-eduga ozugbo na mbelata arụmọrụ nke injin ahụ. Mmụba nke ọdịiche dị n'etiti pistons na cylinders na-emetụtakwa mmebi nke ọnọdụ mmanu mmanu, gụnyere okwu kachasị mkpa, ya bụ. na oyi akwa kwekọrọ ekwekọ nke ihe nkiri mmanụ. Iji belata esemokwu ọjọọ (yana ikpo ọkụ nke ihe ndị dị n'otu n'otu), a na-eji ihe ndị na-emewanye ike. Otu n'ime ụzọ ọhụrụ a na-eji ugbu a bụ iji belata ibu nke pistons n'onwe ha, na-arụ ọrụ na cylinders nke nkeji ike nke oge a.                                                   

NanoSlide - ígwè na aluminom                                           

Oleezi otú a pụrụ isi nweta ihe mgbaru ọsọ ahụ a kpọtụrụ aha n'elu n'omume? Mercedes na-eji, dịka ọmụmaatụ, teknụzụ NanoSlide, nke na-eji piston nchara kama nke a na-akpọkarị aluminom siri ike. Pistons ígwè, na-adị ọkụ (ha karịrị 13 mm dị ala karịa nke aluminom), na-enye ohere, n'etiti ihe ndị ọzọ, na-ebelata ọnụ ọgụgụ nke crankshaft counterweights ma nyere aka mee ka ịdịte aka nke crankshaft bearings na piston pin na-ebu n'onwe ya. A na-eji ihe ngwọta a eme ihe ugbu a na ma ọkụ ọkụ na mkpakọ mkpakọ engines. Kedu uru bara uru nke teknụzụ NanoSlide? Ka anyị malite site na mmalite: ngwọta nke Mercedes tụrụ aro gụnyere nchikota pistons ígwè na ụlọ aluminom (cylinder). Cheta na n'oge ọrụ engine nkịtị, okpomọkụ na-arụ ọrụ nke piston dị elu karịa elu nke cylinder. N'otu oge ahụ, ọnụọgụ nke mgbasawanye linear nke aluminum alloys fọrọ nke nta ka ọ bụrụ okpukpu abụọ nke ihe nkedo ígwè (ọtụtụ n'ime cylinders na cylinder liners na-eme ugbu a site na nke ikpeazụ). Iji njikọ ụlọ nke piston-aluminom ígwè nwere ike belata nkwụsị nke piston na cylinder nke ukwuu. Teknụzụ NanoSlide gụnyekwara, dị ka aha ahụ na-egosi, ihe a na-akpọ sputtering. nanocrystalline mkpuchi na-ebu elu nke cylinder, nke na-ebelata nke ukwuu roughness nke elu ya. Otú ọ dị, maka piston n'onwe ha, a na-eji ígwè arụpụtara arụ ọrụ na nke dị elu mee ha. N'ihi n'eziokwu na ha dị ala karịa ndị ogbo ha nke aluminom, a na-ejikwa ha dị arọ dị ala. Pistons ígwè na-enye ike nke ọma nke oghere ọrụ nke cylinder, nke na-abawanye arụmọrụ nke injin ahụ ozugbo site n'ịbawanye okpomọkụ na-arụ ọrụ n'ime ụlọ combustion ya. Nke a, n'aka nke ya, na-asụgharị n'ime mma dị mma nke mgbanye n'onwe ya na ọkụ ọkụ na-arụ ọrụ nke ọma nke ngwakọta mmanụ-ikuku.