53results about "Wave producing pumps" patented technology

A wave rotor apparatus is provided. In another aspect of the present invention, a radial wave rotor includes fluid passageways oriented in a direction offset from its rotational axis. A further aspect of the present invention employs stacked layers of generally radial channels in a wave rotor. Moreover, turbomachinery is located internal to a wave rotor in yet another aspect of the present invention. In yet another aspect of the present invention, a radial wave rotor has an igniter and fuel injector. Correctional passages are employed in still another aspect of the present invention wave rotor.

An alternative propulsion or motive force for the riders of water features based on generated waves. A wave generator may be used to propel individuals or vessels within a chute for recreation or transportation. In one form, a pool or container having a body of water is configured to support an artificial wave generator which uses compressed gas to discharge water and generate a wave-like motion within a body of water. A source of make-up fluid is configured to mitigate internal low pressure conditions caused by the water discharge to enable effective wave generation with reduced quantities of compressed air. Portions of the waves generated in a pool may be captured in a variety of ways by chutes for stand-alone rides or for portions of chutes in water slides.

A cooling device (1) using pulsating fluid for cooling of an object, comprising: a transducer (2) having a membrane adapted to generate pressure waves at a working frequency (fw), and a cavity (4) enclosing a first side of the membrane. The cavity (4) has at least one opening (5) adapted to emit a pulsating net output fluid flow towards the object, wherein the opening (5) is in communication with a second side of the membrane. The cavity (4) is sufficiently small to prevent fluid in the cavity (4) from acting as a spring in a resonating mass-spring system in the working range. This is advantageous as a volume velocity (u1) at the opening is essentially equal to a volume velocity (u1′) at the second side of the membrane, apart from a minus sign. Thus, at the working frequency the pulsating net output fluid can be largely cancelled due to the counter phase with the pressure waves on the second side of the membrane resulting in a close to zero far-field volume velocity. Thus a low sound level is achieved, at a low cost, without requiring mechanical symmetry.

A method and apparatus for generating a wave in a body of water may include altering a flow of water as it is urged through an inlet, contoured passage, and outlet. For example, a primary flow of water may be altered so that one or more secondary flows are created at angles to the direction of primary flow.

A method and apparatus for generating a wave in a body of water by altering a flow of water as it is urged through an inlet, contoured passage and outlet, for example wherein a primary flow of water is altered so that one or more secondary flows are created at angles to the direction of primary flow.

The invention discloses an antifreezing valve with a self-cleaning function. The antifreezing valve comprises a valve body, wherein a valve cavity is formed in the valve body; a ball valve is arranged in the valve cavity; a valve rod is connected with the ball valve; the valve rod extends out from a valve rod hole in the valve body to be connected with a hand wheel; a valve cover covers the valve rod hole; a water inlet channel and a water outlet channel which are both communicated with the valve cavity, are connected with the valve body; the valve rod is a hollow valve rod in which a stirring shaft is arranged in a penetrating manner; the lower end of the stirring shaft extends into the ball valve to be connected with a stirrer which is arranged in the valve body; the upper end of the stirring shaft is connected with a micro motor which is used for driving the stirring shaft to work; the micro motor is arranged in a cavity of the hand wheel; electromagnetic coils are arranged on the inner walls of both the water inlet channel and the water outlet channel respectively in a winding manner, and are electrically connected with a pulse current generator. According to the antifreezing valve with the self-cleaning function, the micro motor controls the stirrer to work intermittently, so that the liquid medium in the valve is in a non-static state, the scale deposition and medium freezing are avoided and the aims of scale prevention and self-cleaning are achieved.