20 results about "Exhaust valve" patented technology

An engine air brake device for a 4-stroke reciprocating-piston internal combustion engine is provided and has at least one intake valve and two exhaust valves per cylinder. The exhaust train incorporates a throttling device actuatable for engine deceleration so that an exhaust back pressure builds up in the accumulated exhaust gas upstream of the throttling device and becomes effective in conjunction with an engine-internal braking device associated to only one of the two exhaust valves for each cylinder, the other exhaust valve being controlled conventionally. The engine-internal braking device comprises a control piston installed in the valve bridge and pressed in the direction of the exhaust valve from a control pressure chamber supplied with pressurized oil and possibly also by means of an additional control compression spring.

A method and system for removal of nitrous oxide and volatile halocarbon gas components from waste anesthetic gases using a low-flow scavenging or reclamation system preferably including an intelligent waste anesthetic gas collection unit fluidly coupled between each individual anesthetic machine and the waste gas evacuation manifold. Through a system including a collection chamber, a pressure detector, and a exhaust valve which is actuated based on the detected pressure in the collection chamber, the waste anesthetic gas collection unit allows flow to the waste suction manifold only in the presence of waste gas and interrupts all flow into the suction manifold when no waste gas is present.

As previous processing of measurement in which gas to be measured containing, as gas components, carbon dioxide ¹³CO₂ and carbon dioxide ¹²CO₂, is introduced into a cell, and in which the intensities of transmitted lights having wavelengths suitable for measurement of the respective gas components, are measured and then data-processed to measure the concentrations of the gas components, the air having a predetermined volume Va is sucked by a gas injection device 21, a gas exhaust valve V6 of a cell 11 is closed and the air stored in the gas injection device 21 is transferred to the cell 11 filled with the air at an atmospheric pressure, thereby to pressurize the cell inside. The pressure thus pressurized is measured as P. The cell volume Vc is subtracted from the product obtained by multiplying the sum. V0 of the volume Va and Vc the cell volume Vc, by the ratio P0/P in which P0 is the target pressure of the gas to be measured at which a calibration curve has been prepared for an isotope gas analysis and measurement, thus determining the one-time gas injection amount of the gas injection device 21. Thus, measured concentration variations based on changes in atmospheric pressure can be corrected.

The invention discloses a novel buffer packaging box. The novel buffer packaging box comprises a paper box body, wherein buffer bags are arranged on the inner wall of the paper box body; at least one inflation and exhaust valve is arranged on the buffer bags; and a through hole used for allowing the inflation and exhaust valve to pass through is formed in the paper box body. The novel buffer packaging box has the beneficial effects that defects of a traditional packaging paper box are improved, the packaging of a product is simplified, the product does not need to be coated with other buffer materials, the enterprise cost is reduced, the workload and labor intensity are reduced, the packaging process is decreased, the required time is shortened, recycling utilization is facilitated, and environmental protection and emission reduction are achieved.

A combustion nailing tool includes a tool body, a one-way valve, a cover disposed on the one-way valve, and a housing including a housing body and a cap. The tool body includes a combustion cylinder formed with an exhaust vent. The one-way valve is disposed on the combustion cylinder to cover an outer side of the exhaust vent, and is configured to allow exhaust gas resulting from ignition in the combustion cylinder to be vented through the exhaust vent. The cover has an open end allowing the exhaust gas to flow therethrough. The housing body defines an accommodating space for containing the combustion cylinder, and an opening in flow communication with the accommodating space and registered with the cover. The cap is mounted removably on the housing body and covers a part of the opening to thereby allow the exhaust gas to flow out of the housing.

The invention belongs to a testing system and a testing method, and concretely relates to a low-temperature stretching testing system and a testing method. The testing system comprises an outer Dewar and an inner Dewar, a Dewar seal cover is arranged at the top, an external bile liquid conveying tube and an internal bile liquid conveying tube are arranged on the low-temperature stretching testing system, the external bile liquid conveying tube is communicated with the space between the outer Dewar and the inner Dewar, the internal bile liquid conveying tube is communicated with the space in the inner Dewar, an external bile liquid conveying tube control valve and a liquid conveying tube main valve are arranged on a pipeline of the external bile liquid conveying tube in order, the internal bile liquid conveying tube enables airtight communication with the liquid conveying tube main valve, an external bile liquid nitrogen exhaust pipe and an internal bile liquid nitrogen exhaust pipe are arranged on the low temperature stretching testing system, the external bile liquid nitrogen exhaust pipe is communicated with the space between the outer Dewar and the inner Dewar, the internal bile liquid nitrogen exhaust pipe is communicated to the space of the inner Dewar, an external bile liquid nitrogen exhaust pipe control exhaust valve and a low temperature exhaust main valve are arranged on the pipeline of the external bile liquid nitrogen exhaust pipe in order, and the internal bile liquid nitrogen exhaust pipe enables airtight communication to the low temperature exhaust main valve. The low-temperature stretching testing system and the testing method have the effects of high efficiency and saved cost.

An exhaust heat recovery apparatus is installed proximate an engine and at a front side of a warm-up catalytic converter in an exhaust system, where the exhaust system includes an exhaust line connected with the engine, and the warm-up catalytic converter is installed at the exhaust line. The exhaust heat recovery apparatus includes a bellows unit which is of a dual-pipe type and exchanges heat between exhaust gas emitted through the exhaust line and coolant circulating from a cooling system to the engine.

The invention relates to a damp-proof bag. The damp-proof bag is characterized in that a bag body comprises an inner film bag and an outer protecting bag which is used for shading light; the inner surface of the outer protecting bag and the outer surface of the inner film bag are bonded with each other, a cover opening is formed in the end corner at one side of the top of the bag body, the cover opening is provided with a transparent sealing cover, and the cover opening is in threaded connection with the sealing cover; and a volume scale line is arranged on the outer surface of the sealing cover, a one-way exhaust valve is arranged on the end corner at the other side of the top of the bag body, a transparent capacity observation cavity is formed in the bag body, and a light shading stickercapable of being repeatedly pasted covers on the capacity observation cavity. The damp-proof bag has the advantages of being good in exhaust effect and good in damp-proof effect.

The invention relates to a dual path dual purging system and valve assembly for turbo boosted engines. More specifically, the invention provides an integrated valve assembly connected to facilitate the operation of the low flow valve as a pilot valve for the high flow valve and a system to implement it on turbocharged or supercharged engines. The invention relates to a dual path dual purging system with two purge valves connected to facilitate the use of the low flow valve to be operated as a pilot valve for the high flow valve. This smart routing provides pressure compensation for the high flow valve, when the valve is enabled. This decreases the requirement of force for the high flow valve and gives an option to install a smaller cost efficient solenoid valve.

The invention discloses an in-situ polymerization reactor. The in-situ polymerization reactor comprises a casing, wherein a thermal insulator is arranged inside the casing; a heating device is arranged inside the thermal insulator; a reactor body is arranged inside the heating device; a reactor cover is arranged on the reactor body; a feeding opening is formed in the reactor cover; an assistant storing tank is arranged at the top end of the feeding opening; a connecting flange is arranged at the top end of the assistant storing tank; an air inlet valve is arranged on one side of the connectingflange; an exhaust valve is arranged on the other side of the connecting flange; a speed reducer is arranged at the top end of the reactor cover; a rotating shaft is arranged at the bottom end of thespeed reducer; a screw type agitator is arranged at the bottom end of the rotating shaft; a screw blade is arranged on a screw type agitating frame; and round holes are formed in the screw blade. According to the in-situ polymerization reactor, a traditional polymerization reactor is optimized, and the defect that a traditional reactor is insufficient in axial mixing, and is mixed with air, so that oxidization is easily caused is overcome. The in-situ polymerization reactor has the advantages that reaction materials are sufficiently mixed, reactions of all parts in the reactor are performed more uniformly, and charging can be realized in an oxygen-free and pressure-free state.

The invention relates to a device for controlling an air inlet valve and an air outlet valve of an internal combustion engine. The device comprises a cam (3) and a push rod mechanism matched with the cam (3), wherein the push rod mechanism comprises an idler wheel (1); and the idler wheel (1) is provided with a conjugate surface in conjugate movement with the cam (3). In the device controlling the air inlet valve and the air outlet valve of the internal combustion engine, the working surface of the cam and the working surface of the idler wheel are mutually conjugate surfaces, so the device can adjust the opening degree of the air inlet valve and the air outlet valve of the internal combustion engine according to the change sum of the distance from the contacting part of the working surfaces of the cam and the idler wheel to the rotary axis of the cam and the idler wheel. Compared with the prior art that the adjustment is realized according to the change of the distance from one point, at different positions, on the working surface of the cam to the rotary axis of the cam, the device has a wider and more flexible adjusting range.

The invention relates to a gas gun with a projectile body filling and exhausting structure. The gas gun comprises an inner gun barrel, an outer gun barrel and a high-pressure gas cabinet, wherein the outer gun barrel is arranged outside the inner gun barrel, and the high-pressure gas cabinet is sealed and formed between the inner gun barrel and the outer gun barrel. One end of the inner gun barrel is provided with an opening, and the other end is sealed through an inner barrel base. One end of the inner barrel base stretches out of the inner gun barrel, an exhausting blind hole parallel with an axis of the inner gun barrel is arranged in the inner barrel base, and an opening end of the exhausting blind hole is communicated with the interior of the inner gun barrel. An exhausting hole communicated with the exhausting blind hole is further opened on the lateral wall at one end of the inner barrel base stretching out of the inner gun barrel. A penetration hole is opened on the wall of the outer gun barrel. The gas gun further comprises an exhausting guide tube penetrating through the penetration hole and the high-pressure gas cabinet and into the exhausting hole, and one end of the exhausting guide tube exposed out of the high-pressure gas cabinet is further provided with an exhausting valve. The gas gun with the projectile body filling and exhausting structure overcomes deficiencies that projectile bodies with O-shaped ring type gas check rings cannot enter firing bodies rapidly and the filling is slow in the filling process due to the pushing force of compressed gas.

The invention discloses a pressurizing bellyband device for gynaecology and obstetrics. The device comprises a middle bellyband, side bellybands are arranged on the two sides of the middle bellyband,one of the side bellybands is provided with an eccentric bellyband I, the other side bellyband is provided with an eccentric bellyband II, a plurality of air bags are fixedly connected to one surfaceof the eccentric bellyband I, the air bags are connected through air pipes, one of the air bags is connected to an exhaust pipe, an exhaust valve is fixedly connected to the interior of the exhaust pipe, an elastic ball is arranged above each air bag, a vent hole is formed in the side wall of the elastic ball, the bottom of the elastic ball is connected to the air bag through an air inlet pipe, aone-way valve is arranged in the air inlet pipe, mesh cloth is bonded to each air bag, disposable gauze is arranged on the mesh cloth, and the face, away from the air bags, of the middle bellyband isconnected to a correcting mechanism through a first bonding mechanism. The device has the advantages that: the frequency of cleaning the bellybands can be reduced, and puerperae with different figuresand in different periods can be met.

The invention relates to a remote executing mechanism of a smoke exhaust valve. The remote executing mechanism comprises a shell, a swing rod, a swing frame and a winch are rotatably installed on a bottom plate of the shell, a pawl is arranged on the swing frame, an electromagnet is arranged on the bottom plate of the shell, and a mandrel of the electromagnet is connected with the head end of the swing rod; in an initial condition, the electromagnet is powered off, the mandrel extends out, the tail end of the swing rod clamps the head end of the swing frame, and the pawl on the swing frame is unidirectionally clamped with a ratchet wheel; a swing frame opening and the ratchet wheel are opposite in the direction, a swing frame shaft penetrates through a top steel plate and a bottom steel plate; a main torsion spring is sleeved on the shaft section of the swing frame shaft between the bottom steel plate and the bottom plate of the shell; the pawl is hinged to the shaft section of the swing frame shaft between the bottom steel plate and the top steel plate, and the shaft section of the swing frame shaft between the pawl and the top steel plate is sleeved with an auxiliary torsion spring; and a rectangular through hole is formed in a side steel plate of the swing frame, the outer end of the pawl extends out of the rectangular through hole, and a striker portion protrudes out of the rear side surface of the pawl. The remote executing mechanism not only can reduce the blocking probability of the contact part of the tail end of the swing rod and the head end of the swing frame, but also can prevent the contact part of the pawl and the ratchet wheel from being blocked.