Abstract: The invention concerns a device for increasing the downward force pressing a car to the road, mainly while braking, accelerating, or turning, consisting of a wheel hub, at least one control arm, a brake system, and a damping unit. The brake system consists of a brake drum and brake shoes or a brake disc and brake pads mounted on a caliper. At least one brake shoe and/or caliper and/or brake pad and/or additional mass element is placed in a pushing plane parallel with at least one tangent to the circle or on the segment of a circle with the same center of rotation as the wheel hub and where the trajectory of movement is limited by at least one brake stop.

Abstract: A chamber (1) that works as a peristaltic pump for the pressure correction in the tire (4), which is a part of the tire (4) or of an ancillary structure (6) placed between the rim (7) and the tire bead (4) and is connected with the tire (4) internal space at one end and with the external environment at the other end. The chamber (1) is in the shape of a curved hollow channel, where at least one enclosing wall is at least partially formed by at least a pair of surfaces (10) coplanar with the longitudinal direction of the chamber (1). When the tire is mounted on the rim, the pair of surfaces (10) are pressed together thus hermetically closing the chamber (1). When the chamber (1) is closed during rotation of the wheel, the surfaces (10) can slightly slide on one another taking internal wall tensions onto themselves thus decreasing the possibility of wall damage through ripping. A method of producing the chamber (1) is also disclosed.

Abstract: Device for monitoring, maintenance and/or adjustment of pressure in a tire includes the chamber with shape memory deformable for the period of application of external mechanical forces when the tire rolls on the road surface, connected valve with the inside space of the tire and valve with the outside environment. At least one wall of the chamber is adjacent to the inside wall of the tire or is a part of the inside wall of the tire. Furthermore, the device operates on the peristaltic pump principle consisting of the chamber, which is deformable up to the zero cross section. At least one chamber with block with shape memory is freely open at one end and equipped with at least one valve at the other end or next to it. The minimum volume of the part of the chamber at the end equipped with the internal valve or external valve is from 1 to 80% of the total maximum volume of the chamber.

Abstract: Device for monitoring, maintenance and/or adjustment of pressure in a tire. The device consisting of the chamber (1) with shape memory deformable for the period of application of external mechanical forces when the tire rolls on the road surface, connected valve (3) with the inside space (6) of the tire (2) and valve (4) with the outside environment (5) according to the invention is based on the principle, that at least one wall of the chamber (1) is adjacent to the inside wall of the tire (2) or is a part of the inside wall of the tire (2). Further device operating on the peristaltic pump principle consisting of the chamber, which is deformable up to the zero cross section according to the invention is based on the principle, that at least one chamber (1) with block (10) with shape memory is freely open at one end and equipped with at least one valve at the other end or next to it.