Refrigerant transporting hose
OwnerTetsuya Arima, Masanobu Onishi +2inventors
InventorsTetsuya Arima, Masanobu Onishi, Keiichi Kitamura, Makoto Yoshino
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Abstract
A refrigerant transporting hose has a five-layered wall formed of an inner rubber layer, a middle rubber layer, an outer rubber layer, a first reinforcing layer formed between the inner and middle rubber layers and a second reinforcing layer formed between the middle and outer rubber layers. Each rubber layer has a thickness of at least 0.3 mm. Each reinforcing layer is a single layer of spirally wound reinforcing yarn, and the two reinforcing layers have substantially opposite spiral yarn directions. The hose having no resin layer in its wall is of improved flexibility, as well as retaining satisfactory pressure resistance, fluid impermeability and kink resistance.
Claims17
A refrigerant transporting hose having a wall comprising an inner rubber layer, a middle rubber layer, an outer rubber layer, a first reinforcing layer disposed between the inner and middle rubber layers and a second reinforcing layer disposed between the middle and outer rubber layers, each of the rubber layers having a thickness of at least 0.3 mm, the reinforcing layers being each a single layer of spirally wound reinforcing yarn, and having substantially opposite spiral yarn directions from each other.
Dependencies are inferred from the claim text.