Film a ɛyɛ nwini .
Wɔfrɛ akwan a nsu a ɛma mframa fa mu anaa mframa a ɛma mframa no yɛ teateaa wɔ ɔfasu a ɛyɛ hyew no so na amma mframa a ɛhyew no atumi de ɔhyew akɔ ɔfasu no mu no sɛ nsu a ɛyɛ nwini anaasɛ mframa a ɛma ɛyɛ nwini. Thrust chamber a ɛyɛ nsu a ɛyɛ rɔke engine no de nsu a ɛyɛ nwini di dwuma wɔ baabi a ɛbɛn nozzle menewa no baabi a ɔhyew a ɛkɔ mu no yɛ kɛse sen biara. Mpɛn pii no, wɔde nkuruwankuruwa a ɛba fam-mixture ratio nozzles anaa fuel direct current perforations no atwa injector no ho ahyia ma ayɛ a ɛba fam-temperature edge area anaasɛ film a ɛbɛn combustion chamber no mu fasuo no mu de atetew-temperature combustion gas no mu wɔ mfinimfini mpɔtam hɔ. Wɔtaa de mframa a ɛma ɛyɛ nwini no yɛ turbine nhama ne turbojet engine ahorow a ogyaframa wom, na wobetumi atew nhama no hyew so digrii 400 kosi 600 . rɔke engine ahorow bi a ɛyɛ nsu no de turbine exhaust kɔ thrust chamber nozzle no mu ma ɛyɛ mframa film cooling wɔ nozzle no mu ɔfasu no so.
Fifiri a ɛyɛ nwini .
a wɔsan frɛ no divergent cooling. Wɔde nneɛma a ɛyɛ hyew na ɛyɛ afã horow a ɛyɛ hyew no, na nea ɛma nwini no fi soro no fi micropores no mu fi hɔ na ɛma ɔhyew no fi hɔ, bere a ɛyɛ afiri a ɛma onwini wɔ ɔfasu no so, a ɛwɔ onwini pa no. Esiane sɛ ɛyɛ den sɛ wobenya nneɛma a ɛwɔ abon mu nti, carbon a wɔde gu mu bere a wɔde hydrocarbon pɛtro hyew awie no yɛ mmerɛw sɛ ebesiw micropores no ano. Wɔmfaa ɔkwan a ɛma onwini yi nni dwuma kɛse na wɔde di dwuma de ma oxygen a ɛyɛ nsu a ɛwɔ injector no mu no yɛ nwini-liquid hydrogen engine ahorow no nkutoo.
Ablation a ɛma ɛyɛ nwini .
Wɔde di dwuma kɛse wɔ nozzle a ɛwɔ solid rocket engine ahorow mu (hwɛ Ablation Heat Protection, Ablation nneɛma). Afei nso, ɔkwan bi a wɔfa so yɛ onwini wɔ hɔ-a ɛyɛ nwini, a ɛwɔ ɔkwan a ɛte sɛ ablation cooling. Wɔde porous tungsten di dwuma sɛ matrix, na dwetɛ, kɔbere, zinc ne nneɛma afoforo a ɛwɔ nsu a ɛyɛ hyew a ɛba fam no mu. Sɛ ɛyɛ hyew a, nneɛma a ɛwɔ nsu a ɛyɛ hyew a ɛba fam no yɛ nea ɛba fam na eguan kɔyɛ adwuma a ɛma onwini. Matrix tungsten no yɛ refractory na corrosion-ɛko tia, na ebetumi akura ne nsusuwii mu. Ɛfata sɛ wɔyɛ nozzle a ɛwɔ rɔke engine a ɛyɛ den no mu no menewa mu.
Radiative onwini .
Fa nneɛma a ɛyɛ hyew a ɛyɛ hyew no di dwuma de ma ɔhyew no kɔ abɔnten. Wɔtaa de radiative cooling di dwuma wɔ nozzle extension fã a ɔhyew a ɛba fam a ɛyɛ den wɔ rɔke engine ahorow mu, gas generator a ɛwɔ gas hyew a ɛba fam, ne thrust chamber of unit propellant decomposition. Ɔhyew tuntum a ɛwɔ piston engine cylinder head no mu no nso di dwuma wɔ ɔhyew a ɛma ɔhyew no mu. radiation heat dissipation effect a ɛbɛma atu mpɔn no gyina nneɛma a ɛko tia ɔhyew a ɛkɔ soro-a wɔde yɛ nneɛma a ɛyɛ hyew a wɔde di dwuma so titiriw; Nea ɛto so abien no, ɛde ne ho to tuntum a ɛwɔ soro no so, kyerɛ sɛ, ɛde-temperature paint a ɛyɛ tuntum a ɛboro 0.85 wɔ ɔfasu no ani so.
Ɔhyew a ɛbɔ ho ban layer .
Coating anaa pasting high-temperature resistant nneɛma a low thermal conductivity wɔ ɔfasu a ɛyɛ hyew no ani so na ama ɔhyew a ɛwɔ gas no mu no so atew akɔ ɔfasu no so. Nneɛma a wɔtaa de yɛ ɔhyew a wɔde siw ɔhyew ano te sɛ zirconium oxide ne aluminum oxide a wɔde di dwuma no fata ma rɔke engine a ɛyɛ nsu; Graphite, tungsten carbide, ceramics, ne nea ɛkeka ho fata ma rɔke engine a ɛyɛ den; Ceramics, a ɛkorɔn-temperature insulation paint, asbestos, ne nea ɛkeka ho no fata ma turbojet engine ahorow.