A sealing device includes a relatively dimensionally stable, elongated friction and/or wear element and an elastically-deformable elongated sealing element which rests lengthwise on the friction and/or wear element. The friction and/or wear element encompasses the sealing element at the ends of the friction and/or wear element.

A housing assembly for a rotary engine, has: a rotor housing extending around an axis, the rotor housing having an inner face facing a rotor cavity; side housings secured to opposite sides of the rotor housing, the rotor cavity bounded axially between the side housings; and a seal received within a groove at an interface between the rotor housing and a first side housing, the groove annularly extending around the axis, located outwardly of the inner face, and overlapping a peripheral section of the first side housing, the seal having: an elastomeric member compressed between the peripheral section and the rotor housing; and a shield disposed inwardly of the elastomeric member, the shield having a melting point above a temperature of combustion gases, the shield in contact with both of the peripheral section of the first side housing and the rotor housing.

A rotary compressor or expander apparatus embodies a scaling solution that is based on the physical configuration of the leakage path and various of its features to substantially inhibit flow of fluid through the leakage path, with minimal leakage.

A rotary compressor or expander apparatus embodies a scaling solution that is based on the physical configuration of the leakage path and various of its features to substantially inhibit flow of fluid through the leakage path, with minimal leakage.

Provided are a combined sealing piece, a volumetric machine and a wide fuel engine using the combined sealing piece. The combined sealing piece includes a slider with a main sealing piece. The combined sealing piece further includes at least one auxiliary sealing piece, a first auxiliary sealing piece is backed against the slider or leans against the main sealing piece and the slider at the same time, and an elastic member is disposed between the first auxiliary sealing piece and the slider.

A method of manufacturing a component of a housing defining a rotor cavity, the method includes: obtaining a body of the component of the housing, the body having a first face and a second face opposite to the first face, the second face facing away from the rotor cavity, the body made of a first material; performing a treatment to the body to increase a wear-resistance of the first material; depositing a bonding layer on the second face of the body, the bonding layer including a second material being dissimilar from the first material, the first material being more wear-resistant than the second material, the second material defining an exposed face of the bonding layer facing away from the body; and completing a shape of the body by bonding a quantity of a third material to the exposed face of the bonding layer.

A method of manufacturing a component of a housing defining a rotor cavity, the method includes: obtaining a body of the component of the housing, the body having a first face and a second face opposite to the first face, the second face facing away from the rotor cavity, the body made of a first material; performing a treatment to the body to increase a wear-resistance of the first material; depositing a bonding layer on the second face of the body, the bonding layer including a second material being dissimilar from the first material, the first material being more wear-resistant than the second material, the second material defining an exposed face of the bonding layer facing away from the body; and completing a shape of the body by bonding a quantity of a third material to the exposed face of the bonding layer.

A rotary internal combustion engine has a housing assembly comprising a rotor housing and a side housing. The rotor housing and/or the side housing has a main body made of a base material, a bounding layer including the base material at an interface with the main body, and an external layer made of an external material, the external layer secured to the main body via the bounding layer. The base material and the external material are dissimilar to one another. A wear-resistance of the external material is greater than that of the base material. The external layer defines at least a part of one or more of the face of the rotor housing, a peripheral inner face of the rotor housing, and an inner side face of the side housing.

A rotary internal combustion engine has a housing assembly comprising a rotor housing and a side housing. The rotor housing and/or the side housing has a main body made of a base material, a bounding layer including the base material at an interface with the main body, and an external layer made of an external material, the external layer secured to the main body via the bounding layer. The base material and the external material are dissimilar to one another. A wear-resistance of the external material is greater than that of the base material. The external layer defines at least a part of one or more of the face of the rotor housing, a peripheral inner face of the rotor housing, and an inner side face of the side housing.

A rotary combustion engine includes a cylindrical housing with a plurality of internal cavities. Each of the internal cavities is a cylindrical segment of the housing, and a plurality of stationary blades are attached to its inner wall. The stationary blades extend inward to ride along the surface of a central shaft, contacting the shaft with a seal. Each cavity contains a rotor blade attached to the shaft and configured to drive the shaft. Each rotor blade extends outwardly to an inner curve of the housing with a sealing means. Each of the plurality of rotor blades has a reciprocating circular motion inside each of the cavities along the shaft between each of the stationary blades, thereby generating rotational power, delivering compressed rotational force, and provides cooling for the cavity.