37results about How to "Prevent oil accumulation" patented technology

A combined oil control ring for automobile engines capable of keeping an excellent oil-controlling function without suffering sticking between a spacer expander and side rails for a long period of operation comprises upper and lower two side rails, and an axially corrugated spacer expander having upper and lower portions; a leg portion connecting each upper portion and each lower portion of the spacer expander having a portion having an inclination angle θ of 15° or more from the axial direction.

The present invention relates to a rotor arrangement (100) for a turbomachine, having a rotor with a first rotor stage (1), a shaft (3), and a first hub (5) for joining the first rotor stage (1) to the shaft (3). The first hub (5) has a balancing device (30) for balancing the first rotor stage (1). In addition, the present invention relates to a compressor.

A lubrication system for a four cycle engine that lubricates the valve mechanism with the oil mist of the concentration, lowered by the liquefying means. The lubrication system has an oil feeding passage for connecting an oil reservoir with the crank chamber and sending the oil retained in liquid form in the oil reservoir to the crank chamber under a negative pressure of the crank chamber, a communication passage for connecting the crank chamber with the oil reservoir and sending oil mist generated in the crank chamber to the oil reservoir when under a positive pressure of the crank chamber, liquefying means in the oil reservoir for liquefying the oil mist sent from the communication passage to the oil reservoir to decrease the concentration of the oil mist, and a supply passage for supplying the oil mist from the oil reservoir to the valve operating chamber through the liquefying means.

A combined oil control ring for automobile engines capable of keeping an excellent oil-controlling function without suffering sticking between a spacer expander and side rails for a long period of operation comprises upper and lower two side rails, and an axially corrugated spacer expander having upper and lower portions; a leg portion connecting each upper portion and each lower portion of the spacer expander having a portion having an inclination angle θ of 15° or more from the axial direction.

To provide a combined oil control ring comprising a pair of upper and lower side rails and an axially corrugated spacer expander having upper and lower portions for automobile engines, which is capable of keeping an excellent oil-controlling function without sticking between a spacer expander and side rails even in a long period of engine operation, the upper and lower portions of the spacer expander have tabs pushing inner peripheral surfaces of the side rails, projections supporting the side rails, and intermediate portions between the tabs and the projections; each intermediate portion opposing the side rail has at least one groove extending in a substantially circumferential direction is recessed when viewed along a radial direction.

The invention relates to a speed reduction method for a jet engine of a motorcycle, comprising the steps of speed reducing, high rotating speed detecting, first controlling, low rotating speed detecting, second controlling and idle speed controlling. The reduction amplitude of the rotating speed of the engine is judged in the first controlling step, and then the fuel oil injection strategy for anelectronic control unit is determined, so that when the motorcycle slows down, no excessive fuel oil is injected into the engine, the fuel oil waste is effectively reduced, the exhaust pollution is lowered, and the oil sediment on an exhaust pipe is avoided; in addition, in the second controlling step and the idle speed controlling step, the amount of fuel oil injected to the engine is controlled, the case that engine flameout caused by lack of fuel oil in the process of speed reducing and speed idling is prevented, thus to effectively improve the ride marketability of the motorcycle.

The invention provides a shaft part lubrication structure, a shaft part lubrication system, and a sewing machine. The shaft part lubrication structure includes a shaft sleeve part with a shaft hole, a shaft part, a first oil seal groove and a second oil seal opened in the shaft sleeve part a groove, an oil storage groove, an oil inlet, an oil return port, and a multi-channel oil groove arranged between the shaft member and the inner wall of the shaft hole, and the multi-channel oil groove has at least one first oil return groove and one second oil groove. Oil return groove, among the multi-channel oil grooves, only the first oil return groove extends to the oil storage tank, and only the second oil return groove extends to the first oil seal groove. The multi-channel oil grooves do not intersect with each other, but the multi-channel oil grooves can be continuous in the axial direction of the shaft member cover the part of the shaft part between the oil storage groove and the first oil seal groove. In this application, the multi-channel oil groove and the first oil return groove are used to provide sufficient lubrication between the shaft part and the shaft sleeve part, and the oil in the first oil seal groove is returned through the second oil return groove to prevent oil from appearing in the first oil seal groove. Accumulation of oil to avoid oil seepage and oil leakage.

To provide a combined oil control ring comprising a pair of upper and lower side rails and an axially corrugated spacer expander having upper and lower portions for automobile engines, which is capable of keeping an excellent oil-controlling function without sticking between a spacer expander and side rails even in a long period of engine operation, the upper and lower portions of the spacer expander have tabs pushing inner peripheral surfaces of the side rails, projections supporting the side rails, and intermediate portions between the tabs and the projections; and each intermediate portion opposing the side rail has a center-raised bottom having a center-raised shape when viewed along a substantially circumferential direction center-raised shape and a radial direction.

The invention discloses a running mechanism for guitar coating. The running mechanism comprises a first slide seat, a second slide seat, a connecting bracket, a rotary shaft, a first rolling wheel and a second rolling wheel, wherein the first slide seat is provided with a first horizontal wheel movably propped against an upper guide rail and / or a lower guide rail of first guide rails and a first vertical wheel contacted with an outside drive chain; the second slide seat is provided with a second horizontal wheel movably propped against an upper guide rail and / or a lower guide rail of second guide rails and a second vertical wheel contacted with the drive chain; a connecting bracket is fixed with the first slide seat and the second slide seat respectively; the rotary shaft penetrates through a first guide channel, the first slide seat, the second slide seat and a second guide channel and is pivoted with the first slide seat and the second slide seat respectively; a clamp is mounted at one end of the rotary shaft; the rotary shaft is sleeved with the first rolling wheel and the first rolling wheel is positioned in the first guide channel; the rotary shaft is sleeved with the second rolling wheel and the second rolling wheel is positioned in the second guide channel, so that a guitar frame body on the clamp always keeps horizontal translation on the guide rails.

The present invention relates to a rotor arrangement for a turbomachine, having a rotor with a first rotor stage, a shaft, and a first hub for joining the first rotor stage to the shaft. The first hub has a balancing device for balancing the first rotor stage. In addition, the present invention relates to a compressor.

The invention provides a manufacturing method of a rang hood. The manufacturing method comprises the following steps: obtaining a smoke collecting hood (20) through molding integration; and connecting shell frames (11) of the rang hood with a smoke collecting hood frame (21) in a welding manner without a gap between the smoke collecting hood frame (21) and the shell frames (11). The invention also provides the rang hood manufactured by using the manufacturing method of the same. By using the rang hood and the manufacturing method thereof, the molding integration of the smoke collecting hood effectively avoids the problem that a joint slot in the structure of the existing smoke collecting hood causes accumulation of greasy dirt in service; and meanwhile, a welded method is used for installing the smoke collecting hood on shells and polishing traces left by welding, thereby effectively avoiding the problem that greasy dirt is accumulated in the gap connecting the smoke collecting hood with the shells.

The invention discloses a spark plug capable of preventing carbon deposition on the surface of an electrode machine. It includes a shell, and heat insulation cylinders are fixedly connected to both sides of the shell. The opposite side is provided with a liquid blocking block, the bottom of the rotating cam is rotatably connected with a blocking plate, the top of the housing is interspersed with an outlet pipe, and the side of the suction wheel is meshed with a receiving gear rod, so The inner left wall of the casing is fixedly connected with a side electrode, the inner top wall of the casing is fixedly connected with a central electrode, the side of the central electrode is fixedly connected with a heating wire, and the bottom of the heating wire is provided with a water tank, so The bottom of the water tank is slidably connected with a pressure rod, and the bottom of the pressure rod is connected with a bifurcated rod, which can prevent the spark plug of the surface of the electrode machine from being carbonized. The effect of preventing the electrode from being attached to carbon deposits.