SU379776A1 - Inlet engine internal - Google Patents

Inlet engine internal

Info

Publication number
SU379776A1
SU379776A1 SU1438461A SU1438461A SU379776A1 SU 379776 A1 SU379776 A1 SU 379776A1 SU 1438461 A SU1438461 A SU 1438461A SU 1438461 A SU1438461 A SU 1438461A SU 379776 A1 SU379776 A1 SU 379776A1
Authority
SU
USSR - Soviet Union
Prior art keywords
resonator
inlet
engine internal
collector
pipeline
Prior art date
Application number
SU1438461A
Other languages
Russian (ru)
Inventor
А. Д. Якубов Я. М. Майер
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to SU1438461A priority Critical patent/SU379776A1/en
Application granted granted Critical
Publication of SU379776A1 publication Critical patent/SU379776A1/en

Links

Description

one

This invention relates to the design of intake systems for internal combustion engines.

Known intake systems for internal combustion engines include a manifold connected by a pipe to an air cleaner and a Helmholtz resonator.

The purpose of the invention is to increase the filling ratio of the engine.

This is achieved in that the Helmholtz resonator is connected to the pipeline at a distance from its connection to the collector, which is equal to the resonant length of the pipe pipe.

The figure shows schematically the proposed intake system.

The engine intake system contains a manifold 1, which connects several cylinders 2 (is absent in a single-cylinder engine), an air cleaner 3 connected to the collector by a conduit 4, and a Helmholtz resonator 5.

The pipeline section between the collector and the Helmholtz resonator has a length equal to the resonant length for the frequency of disturbing oscillations from the joint operation of all cylinders connected by the collector.

The resonator must also be tuned to this frequency. For this, the length of the inlet 6 of the resonator 5 is chosen in accordance with the ratio

Zv- y

1 22.5 - - / Ldv / Kr

where / p - the length of the inlet of the resonator, m;

p is the cross-sectional area of the nozzle; R2 Vp is the cavity volume, L43;

Izb - speed of sound propagation,

MJceK; Yadv - the number of revolutions of the crankshaft

engine rpm;

i is the number of cylinders connected by a manifold (); t - the number of strokes of the engine.

When the engine is operating, the air oscillations created by the inlet to the individual cylinders propagate through the connecting pipe 4. When it reaches the Helmholtz resonator 5, the pressure waves are reflected from the inlet section of the nozzle and move back to the valves of the cylinders 2.

Tuning the resonator to the frequency of forced oscillations contributes to an increase in the amplitude of the reflected wave and a change in its phase by 180 °. Performing a resonant pipeline

the length of the section between the collector and the resonator leads to the fact that the reflected pressure waves approach the inlet valves 360 ° after the start of the cycle. Here they are combined in one phase with direct pressure waves, increasing the amplitude of oscillations. Since the maximum positive air pressure upstream of the valves coincides with the moment they are closed, the filling of the cylinders with air increases.

Subject invention

The internal combustion engine intake system comprising a manifold connected by pipeline to an air cleaner and a Helmholtz resonator, characterized in that, in order to increase the filling ratio, the resonator is connected to the pipeline at a distance from its connection to the collector equal to the resonant length of the pipeline.

 D

x /

SU1438461A 1970-05-05 1970-05-05 Inlet engine internal SU379776A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1438461A SU379776A1 (en) 1970-05-05 1970-05-05 Inlet engine internal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1438461A SU379776A1 (en) 1970-05-05 1970-05-05 Inlet engine internal

Publications (1)

Publication Number Publication Date
SU379776A1 true SU379776A1 (en) 1973-04-20

Family

ID=20452967

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1438461A SU379776A1 (en) 1970-05-05 1970-05-05 Inlet engine internal

Country Status (1)

Country Link
SU (1) SU379776A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4353211A (en) * 1978-12-21 1982-10-12 Autoipari Kutato Intezet Conduit system for introducing intake gases in internal combustion engines
US4356798A (en) * 1980-05-17 1982-11-02 Honda Giken Kogyo Kabushiki Kaisha Intake system for use in internal combustion engine
US4389982A (en) * 1981-10-20 1983-06-28 Performance Industries, Inc. Internal combustion engine fuel supply system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4353211A (en) * 1978-12-21 1982-10-12 Autoipari Kutato Intezet Conduit system for introducing intake gases in internal combustion engines
US4356798A (en) * 1980-05-17 1982-11-02 Honda Giken Kogyo Kabushiki Kaisha Intake system for use in internal combustion engine
US4389982A (en) * 1981-10-20 1983-06-28 Performance Industries, Inc. Internal combustion engine fuel supply system

Similar Documents

Publication Publication Date Title
CA1085740A (en) Noise silencer
KR930004966B1 (en) Intake silencer for engine
US3434565A (en) Silencer with angled tuning tube leading to helmholtz resonator
US2543758A (en) Standing wave heat engine with means for supplying auxiliary air
US6105716A (en) Venturi muffler having plural nozzles
US3056104A (en) Underwater signaling and apparatus therefor
US7337877B2 (en) Variable geometry resonator for acoustic control
JP3763698B2 (en) Design method of fuel supply system that can relieve pressure pulsation
US2305946A (en) Internal combustion engine
US4038348A (en) Ultrasonic system for improved combustion, emission control and fuel economy on internal combustion engines
EP0376299B1 (en) Suction apparatus for engine
US6959782B2 (en) Tuned exhaust system for small engines
US2808896A (en) Exhaust mufflers for internal combustion engines
US5059221A (en) Integrated air cleaner assembly
Davies The design of silencers for internal combustion engines
GB890364A (en) Improvements in or relating to internal combustion engine silencers
US3655011A (en) Sound attenuating chamber
Payri et al. Acoustic boundary condition for unsteady one-dimensional flow calculations
CA1305898C (en) Manifold tuning structure
US2392247A (en) Muffler
US2936041A (en) Pulsation dampening apparatus
US2546966A (en) Multicircuit quarter wave pulse jet engine
US4515115A (en) Inertia supercharger for internal combustion engines
SU539541A4 (en) Blower for internal combustion engine
Yasuda et al. Studies on an automobile muffler with the acoustic characteristic of low-pass filter and Helmholtz resonator