Some elements of the secondary level of suspension as two washer mounts for the side arms supporting the leaf spring (located in the hull) and the central rod supporting on the side bearer are seen on the bottom of the hull of the Shch-el-1 diesel loc
When I read from the Rakov's book about the first Soviet diesel-electric locomotive and the very first one with bogies designed under Soviet russian engineer Gakkel before 1924 I was surprised that it had triple suspension with some elements located in the body (see the scheme). More or less typical two-stage wheelset primary suspension included axlebox supported on the leaf spring that was in turn suspended using volute spring on one side and paired through equaliser on the another leaf spring's side to the next wheelset suspension.
Curious, but the secondary level of suspension (the third in that classification) included not the usual swing bolster or something else like additional coil springs between bogie's frame and the hull frame but one more leaf spring mounted in the hull's frame that supported on the bogie's side bearers by four for each bogie.
Scheme of the locomotive www.flickr.com/photos/cetus13/54902527931/in/photostream/
First diesel electric locomotive of the 1Co+Do+Co1 (1-3-0 + 0-4-0 + 0-3-1) class named firstly JuE002 (Юэ002) and later Shch-el-1 (Щ-ЭЛ-1) and Ge1 (Гэ1 - after name of designer, Y. M. Gakkel) was designed between 1921 and 1922 by Yakov Modestovich Gakkel and Alexander Sergeevich Raevsky and built to 1924 in Soviet Russia by the Putilov Plant and the Baltic Shipyard in Petrograd (St. Petersburg). As the prime mover was used the 1000 hp 4 stroke 10 cylinder Vickers diesel built for the Russian submarine Lebed' (The swan) in 1916. According to other sources the diesel was salvaged from a British submarine lost in the Baltic in 1919 during The Intervention. Two electric generators were also of submarine type but made in Riga on the Volta factory (or in Italy). Traction motors were PT-100 (ПТ-100), 100 kW each. Curiously, the locomotive was seriously damaged during the Great flood of Petrograd in 1924. It career was very short it worked on a railway during 1925-27 yy and from 1934 has been used as mobile power plant. In contrast to the JuE002, the competitive project JuE001 (Юэ001) built in Germany under Lenin's decision designed by another famous Russian railway engineer, Yury Lomonosov had more prolonged usage up to 1954 y. JuE001 Diesel-electric locomotive class E el-2 (Ээл2) had 1′Eo1′ configuration, 1200 hp MAN diesel and 800 kW electric motors.
The JuE002 (Щ-ЭЛ-1) now is exposed in the Russian Railways Museum in St. Petersburg.
Some elements of the secondary level of suspension as two washer mounts for the side arms supporting the leaf spring (located in the hull) and the central rod supporting on the side bearer are seen on the bottom of the hull of the Shch-el-1 diesel loc
When I read from the Rakov's book about the first Soviet diesel-electric locomotive and the very first one with bogies designed under Soviet russian engineer Gakkel before 1924 I was surprised that it had triple suspension with some elements located in the body (see the scheme). More or less typical two-stage wheelset primary suspension included axlebox supported on the leaf spring that was in turn suspended using volute spring on one side and paired through equaliser on the another leaf spring's side to the next wheelset suspension.
Curious, but the secondary level of suspension (the third in that classification) included not the usual swing bolster or something else like additional coil springs between bogie's frame and the hull frame but one more leaf spring mounted in the hull's frame that supported on the bogie's side bearers by four for each bogie.
Scheme of the locomotive www.flickr.com/photos/cetus13/54902527931/in/photostream/
First diesel electric locomotive of the 1Co+Do+Co1 (1-3-0 + 0-4-0 + 0-3-1) class named firstly JuE002 (Юэ002) and later Shch-el-1 (Щ-ЭЛ-1) and Ge1 (Гэ1 - after name of designer, Y. M. Gakkel) was designed between 1921 and 1922 by Yakov Modestovich Gakkel and Alexander Sergeevich Raevsky and built to 1924 in Soviet Russia by the Putilov Plant and the Baltic Shipyard in Petrograd (St. Petersburg). As the prime mover was used the 1000 hp 4 stroke 10 cylinder Vickers diesel built for the Russian submarine Lebed' (The swan) in 1916. According to other sources the diesel was salvaged from a British submarine lost in the Baltic in 1919 during The Intervention. Two electric generators were also of submarine type but made in Riga on the Volta factory (or in Italy). Traction motors were PT-100 (ПТ-100), 100 kW each. Curiously, the locomotive was seriously damaged during the Great flood of Petrograd in 1924. It career was very short it worked on a railway during 1925-27 yy and from 1934 has been used as mobile power plant. In contrast to the JuE002, the competitive project JuE001 (Юэ001) built in Germany under Lenin's decision designed by another famous Russian railway engineer, Yury Lomonosov had more prolonged usage up to 1954 y. JuE001 Diesel-electric locomotive class E el-2 (Ээл2) had 1′Eo1′ configuration, 1200 hp MAN diesel and 800 kW electric motors.
The JuE002 (Щ-ЭЛ-1) now is exposed in the Russian Railways Museum in St. Petersburg.