98results about How to "Reduce pressure peaks" patented technology

A piston for a pretensioner device (10) for a motor vehicle seat belt system of a type having a gas generator (17) with the piston (21) guided in a tube (16) that closes a pressure space (20) in the tube (16). The pressure space (20) can be pressurized by the gas generator (17), driving the piston (21) to undergo pretensioning operation transmitted to the seat belt system by a force transmission means. The piston has a dome shaped front side adapted to engage a force transmission element and a skirt forming a sealing lip oriented toward the pressure space. At least one slot is formed in the outer surface of the piston extending axially from the sealing lip. The slot can be enlarged by the material erosion caused by the pressure and / or pressure conditions in the pressure space produced by gas from the gas generator.

The invention relates to a mixture formation device for an internal combustion engine operated with a burnable gas, preferably compressed natural gas CNG. The mixture formation device comprises a combination of a quantity regulator, a gas mixer, a flow-guiding element for pressure recovery, and a connection possibility for exhaust gas recirculation of the internal combustion engine. The mixture formation device according to the invention can empty a gas tank to a comparatively low pressure of about 2 bar, an excellent mixture formation being achieved over the entire range of speed and load range of the internal combustion engine. According to the invention, such a mixture formation device can reduce production costs as well as space requirements compared to known solutions. The invention also relates to an internal combustion engine operated with a burnable gas, particularly compressed natural gas (CNG), comprising such a mixture formation device in the intake tract thereof.

The invention relates to a compressor system (10) comprising a compressor (12) for supplying compressed air to a utility vehicle (14) that has a driving engine (18) with a turbocharger (16). Air that is pre-compressed by the turbocharger (16) can be sucked in by the compressor (12) via a first air supply pipe (20). According to the invention, ambient air that is not pre-compressed can be sucked in by the compressor (12) via a second air supply pipe (12). The invention further relates to a method for controlling a compressor system (10) comprising a compressor (12) for supplying compressed air to a utility vehicle (14) that has a driving engine (18) with a turbocharger (16).

Proposed is a method for controlling and regulating an internal combustion engine (1), in which the rail pressure (pCR) is controlled via a suction throttle (4) on the low pressure side as a first pressure-adjusting element in a rail pressure control loop. The invention is characterized in that a rail pressure disturbance variable (VDRV) is generated in order to influence the rail pressure (pCR) via a pressure control valve (12) on the high pressure side as a second pressure-adjusting element, by means of which fuel is redirected in a controlled manner from the rail (6) into a fuel tank (2), the rail pressure disturbance variable (VDRV) being calculated using a corrected target volume flow (Vk(SL)) of the pressure control valve (12).

The cylinder / piston unit for a counterforce ram or vee ring of a fineblanking or stamping press equipped with at least one tool is continuously maintained at a preadjustable cushion pressure (P1) and is then subjected to a preadjustable displacement pressure (P2) from a connectable high-pressure source, with said pressure being set to a pressure (PU) varying between the cushion pressure (P1) and the pressure for forming or blanking by supplying a separate control oil quantity to a second accumulator via a central control unit, whereby a rise in pressure caused by the impact between the tool and the workpiece is regulated, independently of quantity of the control oil, from the pressure (P3) in the second accumulator to a permissible set pressure by discharging a significant part of the pressure pulse into a separate tank and the available cushion pressure allows ejection of the workpiece to be synchronized with retraction of the press ram.

The invention discloses organic matter processing equipment with high sealing performance. The organic matter processing equipment comprises a feeding device, a separator, a cover opening device and a pressure increasing and releasing device which is installed inside the separator. The separator conducts gas-solid separation on processed materials. The feeding device and the cover opening device are both arranged at the upper portion of the pressure increasing and releasing device, namely the top of the separator. The feeding device injects the materials into the pressure increasing and releasing device through the cover opening device. In the pressure increasing and releasing device, the material weight and steam outward pressure are borne by an upper cylinder barrel, an air cylinder is only used for supporting and pushing a lower cylinder barrel, and the requirement for thrust of the supporting air cylinder is lowered; and meanwhile a half-hidden type sealing structure is adopted, materials are directly prevented from making contact with the sealing position in the discharging process, the service life of a sealing piece is prolonged, and the reliability of the sealing piece is improved.

The pipe fitting comprises a plastic body (2) and a reinforcement ring (3) around the outside of the plastic body (2). The reinforcement ring (3) holds the body expansion under control. The reinforcement ring (3) is positioned at the distance (d) from the front end of the pipe fitting (1).

The invention discloses a buffer oil cylinder, which relates to the technical field of hydraulic oil cylinders. It includes a cylinder body. A piston separates the inner cavity of the cylinder into a rod chamber and a rodless chamber. The rodless chamber communicates with an oil port. The piston is provided with a buffer column The buffer cavity of the plug, the buffer plunger is provided with an axial through hole, and an elastic member is arranged in the piston to make the buffer plunger protrude from the piston, and a small hole connecting the rodless cavity and the axial through hole is opened on the buffer plunger. The piston is fixed with a guide ring that slides with the buffer plunger; the piston is provided with a check valve and a drainage hole connecting the check valve and the buffer chamber; when the buffer cylinder starts, a part of the hydraulic oil passes through the oil port, the buffer plunger shaft The other part enters the rodless cavity through the through hole, the drainage hole and the one-way valve, and the other part enters the rodless cavity through the small hole; during the buffering process of the buffer cylinder, the hydraulic oil in the rodless cavity passes through the small hole and the axial direction of the buffer plunger. Oil return through holes and ports. The invention can start quickly, and the pressure transitions smoothly during the buffering process, reduces the peak value of the buffering pressure, and improves the service life of the oil cylinder.