38results about How to "Strong damping" patented technology

The invention discloses a unidirectionally-rotating damper. The unidirectionally-rotating damper comprises a housing, a rubber insert part, a rotary plastic part, a unidirectional bearing, a rotary shaft, a gland and a gear, wherein the housing is a barrel body with a closed bottom end; the axially-rotating rotary plastic part is arranged in the housing; the unidirectional bearing is arranged at the centre of the rotary plastic part in a coating manner; one end of the rotary shaft penetrates through the centre of the unidirectional bearing and is in transmission connection with the centre of the unidirectional bearing; the other end of the rotary shaft penetrates through the gland and is in transmission connection with the centre of the gear; the rubber insert part is arranged between the rotary plastic part and the housing; an inclined groove arranged slantwise is arranged in the rubber insert part; and a convex bar matched with the inclined groove is arranged on the surface of the corresponding rotary plastic part, so that a contact surface contacting with the rotary plastic part, of the rubber insert part, is an inclined surface. The unidirectionally-rotating damper disclosed by the invention has the advantages of being resistant to collision and obvious in damping effect; the condition of failure in a high-temperature and low-temperature test is avoided; a downward resistance is generated during rotation due to a spiral structure, and according to the principle of acceleration, the higher rotation speed and force are, the higher damping is; and the unidirectionally-rotating damper is more exquisite and smaller in size compared with external products, and the damping effect is reinforced.

A robust engine assembly having reduced weight and efficient cooling, without an increase in fuel consumption or carbon dioxide emissions, is provided. The engine assembly includes a double-wall cylinder liner clamped between a cylinder head and a crankcase. A manifold is disposed along a portion of the cylinder liner and includes fluid ports aligned with fluid ports of the cylinder liner to convey cooling fluid to a cooling chamber located between the walls of the cylinder liner. For example, the manifold can be a low-loss hydraulic manifold cast integral with the crankcase. Tie rods connect the cylinder head to the crankcase to clamp the cylinder liner in position. Alternatively, the tie rods can be connected to a main bearing cradle located beneath the crankcase. No attachment features extend into the walls of the cylinder liner, which is especially advantageous when the cylinder liner is formed of aluminum.